?!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> PHENOLIC

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                                        San Diego Plastics
                                        2220 McKinley Avenue
                                        National City  CA  91950
                                        800/925-4855   619/477-4855   FAX 619/477-4874
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                                        PHENOLIC

                                        BUY PHENOLIC SHEET ONLINE - CLICK HERE

                                        Phenolic sheet Phenolic tubes
                                        PROPERTIES
                                        • Excellent dielectric strength
                                        • Good machinability
                                        • Light weight
                                        • Heat and wear resistant
                                        • Resists corrosion and chemicals
                                        • Good mechanical strength & dimensional stability
                                        • Low moisture absorption

                                           
                                        APPLICATIONS
                                        • Terminal boards
                                        • Switches
                                        • Bearings
                                        • Gears
                                        • Wear strips
                                        • Gaskets
                                        • Washers
                                        • Transformers
                                        • Machining components
                                        • Industrial laminates

                                        Phenolic sheet is a hard, dense material made by applying heat and pressure to layers of paper or glass cloth impregnated with synthetic resin. These layers of laminations are usually of cellulose paper, cotton fabrics, synthetic yarn fabrics, glass fabrics or unwoven fabrics. When heat and pressure are applied to the layers, a chemical reaction (polymerization) transforms the layers into a high-pressure thermosetting industrial laminated plastic.

                                        PAPER REINFORCED PHENOLIC

                                        NEMA X per MIL-I-24768/12 PBM
                                        NEMA XX per MIL-I-24768/11 PBG
                                        NEMA XXX per MIL-I-24768/10 PBE
                                        Normal electrical applications, moderate mechanical strength, continuous operating temperature of 250°F.

                                        CANVAS REINFORCED PHENOLIC

                                        NEMA C per MIL-I-24768/16 TYPE FBM
                                        NEMA CE per MIL-I-24768/14 TYPE FBG
                                        Good mechanical and impact strength with contiunuous operating temperature of 250°F.

                                        LINEN REINFORCED PHENOLIC

                                        NEMA L per MIL-I-24768/15 TYPE FBI
                                        NEMA LE per MIL-I-24768/13 TYPE FBE
                                        Good mechanical & electrical strength. Recommended for intricate high strength parts. Continuous operating temperature 250°F.

                                        NYLON REINFORCED PHENOLIC

                                        NEMA N-1 per MIL-I-24768/9 TYPE NPG
                                        Superior electrical properties under humid conditions, fungus resistant, continuous operating temperature of 160°F.

                                        PHENOLIC PROPERTY COMPARISON CHART

                                        PHENOLIC COLOR CHIP GALLERY - CLICK HERE

                                        Phenolic Chip Gallery - Click Here

                                        MADE WITH USED IN FEATURES NEMA GRADE COLOR
                                        PAPER
                                        PHENOLIC
                                        Mechanical grade, intricate punch parts, insulating washers, switch bases. terminal boards Requires little to no preheating. good cold shearing, cold punch
                                        XP
                                        XP
                                        XP
                                        Tan
                                        Black
                                        Chocolate
                                        PAPER
                                        PHENOLIC
                                        Mechanical grade, intricate punch parts Excellent cold punch and cold shearing
                                        XPC
                                        XPC
                                        XPC
                                        Chocolate
                                        Tan
                                        Black
                                        PAPER
                                        PHENOLIC
                                        Mechanical grade, punch parts 3/32" max thickness Non Nema, warm punch Tan Chocolate Black
                                        PAPER
                                        PHENOLIC
                                        Mechanical grade Non Nema, warm punch Tan Chocolate Black
                                        PAPER
                                        PHENOLIC
                                        Mechanical grade, terminal boards, structural parts, switch bases, washers, panels General purpose. high mechanical strength, electrical properties are secondary X Natural
                                        PAPER
                                        PHENOLIC
                                        Electrical grade, switch board panels, relay and switch bases, breaker arms, barriers Electrical insulation in dry or humid conditions, good machining, fair mechanical strength
                                        XX
                                        XX
                                        Natural
                                        Black
                                        PAPER
                                        PHENOLIC
                                        Electrical grade, panel boards, high voltage switch, gear, radio, television panels Electrical insulation, high humidity resistance, good dimensional stability, excellent resistance to splitting
                                        XXX
                                        XX
                                        Natural
                                        PAPER
                                        PHENOLIC
                                        Mechanical grade, intricate punch parts, insulating washers, switch bases, terminal boards Solid black color throughout, requires little to no preheating, good cold shear and punch XP Black
                                        PAPER
                                        PHENOLIC
                                        Mechanical grade, thick punch parts 3/32" through 1/4" Ultra Soft punch plate, cold punch. Solid black color throughout
                                        XPC
                                        XPC
                                        Natural
                                        Black
                                        PAPER
                                        PHENOLIC
                                        Electrical grade, punch parts, electronic equipment, insulating washers and spacers Electrical insulation, low dielectric losses in severe humidity, warm punch XXP Tan
                                        PAPER
                                        PHENOLIC
                                        Electrical grade, punch parts, radio & TV terminal boards, panels, U.L. listed as 65M03 unclad Cold punch and shearing, high insulation resistance and low dielectric losses under severe humidity XXXPC Natural
                                        FINE WEAVE COTTON CLOTH PHENOLIC Mechanical grade, fine tooth gears, radio parts, terminal boards High mechanical strength, good appearance, good machining qualities L Natural
                                        FINE WEAVE COTTON CLOTH PHENOLIC Electrical - mechanical grade, marine relay bases, terminal bases and strips, radio parts, high humidity applications Electrical and mechanical strength, moisture resistance
                                        LE
                                        LE
                                        Natural
                                        Black
                                        FINE WEAVE COTTON CLOTH PHENOLIC Mechanical grade - for fine machined parts, gears, radio parts, terminal boards Fine weave canvas where better than CE machining characteristics are required & grade L cannot be justified Natural
                                        MEDIUM WEAVE COTTON CLOTH PHENOLIC Mechanical grade, gears, pinions, spacers, structural applications Economy grade, high impact strength, good mechanical properties C Natural
                                        MEDIUM WEAVE COTTON CLOTH PHENOLIC Mechanical - electrical grade, small gears, pinions, radio parts, marine switch board panels Economy grade, good acid resistance, low voltage, low frequency electrical performance CE Natural
                                        MEDIUM WEAVE COTTON CLOTH PHENOLIC Mechanical grade, marine bearings, piston and packing rings, pump valve, doctor blades, marine Phenolic Low moisture absorption, dimensional stability Natural
                                        MEDIUM WEAVE COTTON CLOTH PHENOLIC Mechanical grade, valves, plating tanks Low moisture absorption, good dimensional stability, good resistance to acids and alkalies Natural
                                        MEDIUM WEAVE COTTON CLOTH PHENOLIC Mechanical grade, support blocks, spacers for liquid oxygen tanks Special formulation for cryogenic applications, property retention at extremely low temperatures Natural
                                        MEDIUM WEAVE COTTON CLOTH PHENOLIC Mechanical grade, packing rings, pistons, bearings Canvas with molybdenum disulfide, low coefficient of friction Green
                                        MEDIUM WEAVE COTTON CLOTH PHENOLIC Mechanical grade, wire stranders, heat dissipation applications Canvas with copper screen Natural
                                        MEDIUM WEAVE COTTON CLOTH PHENOLIC Mechanical grade, pistons, packing rings, textile mill bearings Canvas with graphite, self-lubricating, low coefficient of friction Black
                                        GLASS CLOTH MELAMINE Electrical - mechanical grade, switch board panels, arc barriers, circuit breaker parts, structural electrical parts High mechanical strength high arc and heat resistance, self-extinguishing, excellent electrical properties under dry conditions G-5 Gray
                                        GLASS CLOTH MELAMINE Electrical - mechanical grade, marine switch board panels, structural parts High mechanical strength, high arc and heat resistance, self-extinguishing, excellent electrical properties under dry and humid conditions G-9 Gray
                                        GLASS CLOTH SILICONE Electrical grade, class H insulation, heating-appliance insulation Good electrical properties under humid conditions, excellent heat and arc resistance, self-extinguishing G-7 White
                                        GLASS CLOTH EPOXY Electrical - mechanical grade, terminal boards, high humidity applications, U.L. listed as 65M38 unclad High flexural, impact and bond strength at room temperatures, good electrical properties under dry and humid conditions G-10 Green
                                        GLASS CLOTH EPOXY Electrical - mechanical grade, rotor slot insulation, structural members at elevated temperatures High mechanical strength at temperatures up 150°C, retains 50% of its flexural strength at elevated temperatures G-11 Green


                                        Typical properties of PHENOLICS

                                        ASTM or UL test Property General purpose Impact Non bleeding Electrical Heat resistant Glass reinforced Chemical resistant compound
                                        PHYSICAL
                                        D792 Specific gravity 1.35- 1.46 1.36- 1.41 1.37- 1.38 1.36- 1.75 1.41- 1.84 1.7- 2.0 1.37- 1.75
                                        D570 Water absorption, 24 hours, 1/8 inch thick (%) 0.6-0.7 0.6-0.9 0.8-0.9 0.05- 0.20 0.30- 0.35 0.05- 0.2 0.20- 0.40
                                        MECHANICAL
                                        D651 Tensile strength (psi) 6,500- 7,000 6,000- 7,000 6,000- 7,000 5,000- 7,000 5,000- 6,000 6,000- 12,000 7,000- 9,000
                                        D790 Flexural modulus (10~5 psi) 11-13 12 10 17-25 14 20-30 10
                                        D790 Flexural strength (psi) 9,000- 11,000 10,000 10,000 9,000- 11,000 10,000 12,000- 24,000 9,500
                                        D256 Impact strength, izod (ft-lb/in. of notch) 0.30- 0.35 0.6- 1.05 0.28 0.28- 0.45 0.26 0.4-1.5 0.50
                                        D785 Hardness, Rockwell E 70-95 82 82 75-88 94 92-104 76
                                        THERMAL
                                        C177 Thermal conductivity (10~4 cal - cm/sec- cm~2- °C) 7.1 7.9 - 16.0 - - 8.8
                                        D696 Coefficient of thermal expansion (10~5 in./in.-°C) 3.95 3.56 4.40 2.60 2.80 1.80 3.60
                                        D648 Deflection temperature (°F)
                                        At 264 psi

                                        275-360

                                        270-500

                                        370

                                        310-400

                                        330-380

                                        370-550

                                        360-430
                                        UL94 Flammability rating 1/8 inch V-1 HB - V-0 V-0 V-0 HB
                                        ELECTRICAL
                                        D149 Dielectric strength (V/mil) short time, 1/8 in. thick 350 350-400 200 400 170 400 175
                                        D150 Dielectric constant At 1kHz 5.2-5.3 5.2-5.4 - 4.9-6.5 11.7 4.4 7.8
                                        D150 Dissipation factor At 1kHz 0.04- 0.05 0.04- 0.06 - 0.025- 0.10 0.15 0.03 0.12
                                        D257 Volume resistivity (ohm-cm) At 73°F, 50% RH 10~11- 10~12 10~11- 10~12 10~12 10~11- 10~13 10~12 10~12 10~11
                                        D495 Arc resistance(s) 100 50 - 184 181 181 -

                                        CLICK HERE FOR A PHENOLIC PROPERTY COMPARISON CHART

                                        Thermoset Plastic Laminate.

                                        Thermoset Plastic Laminate is a uniformly dense and structurally strong material that will not soften appreciably under the reapplication of heat. It is an extremely durable plastic that is lightweight and moisture resistant. Industrial laminates are thermoset resin impregnated reinforcing materials (paper, cotton fabric, glass fabric, etc.) that are cured under heat and pressure to form solid shapes having high mechanical and electrical insulating properties. Laminates are available in sheet, rod, tube, and angle. Since laminates are comprised of a combination of materials, they are also referred to as composites.
                                        Standard stock grades include:

                                        G1O/FR4 Glass Reinforced Epoxy - natural (yellowish to light green) The most versatile all around laminate, this grade is a continuous glass woven fabric base impregnated with an epoxy resin binder. It has extremely high mechanical strength, good dielectric loss properties, and good electric strength properties, both wet and dry. Certifies to Mil-I-24768/27 GEE-F

                                        G11/FRS Glass Reinforced Epoxy - natural (yellow green to amber) This grade is similar to G10/FR4, with the addition of a higher operating temperature and some improved mechanical strength at elevated temperatures. Certifies to Mil-I-24768/28 GEB -F

                                        G5/G9 Class Reinforced Melamine - natural (grayish brown) This grade is composed of a continuous glass woven cloth base impregnated with a melamine resin binder. Melamine is the hardest of all laminates, exhibiting good dimensional stability and are resistance. It is also caustic resistant. Certifies to Mil-I-24768/1 CME

                                        G7 Glass Reinforced Silicone - natural (cream to white) Composed of a continuous glass woven cloth base impregnated with a silicone resin binder,this grade has excellent heat and are resistance. It has extremely good dielectric loss properties under dry conditions and good electrical properties under humid conditions, although the percentage of change is high. Certifies to Mil-I-24768117 GSG

                                        X/XX/XXX Paper Reinforced Phenolic - natural (tan) This grade is composed of a paper base impregnated with a phenolic resin binder. It has good electric strength properties with fair mechanical strength. Outstanding for use as template material and or backup material. Certifies to Mil-I-24768112 PBM,I11 PBG and /10 PBE

                                        C/CE Cotton Fabric Reinforced Phenolic - natural (light tan to brown) This grade is composed of a continuous cotton woven cloth impregnated with a phenolic resin binder. This grade contains a medium weave canvas and is known primarily for it's mechanical properties. This grade is not recommended for primary insulation. Certifies to Mil- I-24768/14 FBG

                                        Linen L/LE Cotton Fabric Reinforced Phenolic - natural (light tan to brown) This grade is composed of a continuous cotton woven cloth impregnated with a phenolic resin binder. This grade contains a fine weave linen and, like the canvas phenolic, is known for it's mechanical properties. The finer weave allows for machining more intricate details than Canvas, like gear teeth. This grade is not recommended. for primary insulation. Certifies to Mil-I-24768/13 FBE

                                        Mat Glass Reinforced Polyester - GPO-1 (tan) and GPO-3 (red) These grades are composed of random mat (non-woven) fiberglass reinforcement held together by a polyester resin binder. GPO-3 offers superior arc and track resistance.

                                        THERMOSET SHEET TOLERANCES
                                        All measurements are in inches
                                        THICKNESS
                                        Decimal
                                        Inches
                                        ALL
                                        Glass
                                        Grades
                                        ALL
                                        GPO
                                        Grades
                                        ALL
                                        Paper
                                        Grades
                                        C
                                        Canvas
                                        Grade
                                        CE
                                        Canvas
                                        Grade
                                        L
                                        Linen
                                        Grade
                                        LE
                                        Linen
                                        Grade
                                        .005
                                        ±.001
                                        -
                                        -
                                        -
                                        -
                                        -
                                        -
                                        .010
                                        ±.002
                                        -
                                        ±.002
                                        -
                                        -
                                        ±.003
                                        ±.003
                                        .015
                                        ±.003
                                        -
                                        ±.0025
                                        -
                                        -
                                        ±.0035
                                        ±.0035
                                        .020
                                        ±.004
                                        -
                                        ±.003
                                        -
                                        -
                                        ±.004
                                        ±.004
                                        .025
                                        ±.0045
                                        -
                                        ±.0035
                                        -
                                        -
                                        ±.004
                                        ±.004
                                        .031
                                        ±.0065
                                        ±.0075
                                        ±.0035
                                        ±.0065
                                        ±.0065
                                        ±.005
                                        ±.005
                                        .047
                                        ±.0075
                                        -
                                        ±.0045
                                        ±.0075
                                        ±.0075
                                        ±.0055
                                        ±.0055
                                        .062
                                        ±.0075
                                        ±.0075
                                        ±.005
                                        ±.0075
                                        ±.0075
                                        ±.006
                                        ±.006
                                        .093
                                        ±.009
                                        ±.009
                                        ±.007
                                        ±.009
                                        ±.009
                                        ±.007
                                        ±.007
                                        .125
                                        ±.012
                                        ±.010
                                        ±.008
                                        ±.010
                                        ±.010
                                        ±.008
                                        ±.008
                                        .156
                                        ±.015
                                        ±.011
                                        ±.009
                                        ±.011
                                        ±.011
                                        ±.009
                                        ±.009
                                        .187
                                        ±.019
                                        ±.0125
                                        ±.010
                                        ±.0125
                                        ±.0125
                                        ±.010
                                        ±.010
                                        .250
                                        ±.022
                                        ±.015
                                        ±.012
                                        +.030
                                        ±.015
                                        +.024
                                        ±.012
                                        .312
                                        ±.026
                                        -
                                        ±.0145
                                        +.035
                                        ±.0175
                                        +.029
                                        ±.0145
                                        .375
                                        ±.030
                                        ±.020
                                        ±.017
                                        +.040
                                        ±.020
                                        +.034
                                        ±.017
                                        .437
                                        ±.033
                                        -
                                        ±.019
                                        +.044
                                        ±.022
                                        +.038
                                        ±.019
                                        .500
                                        ±.036
                                        ±.024
                                        ±.021
                                        +.048
                                        ±.024
                                        +.042
                                        ±.021
                                        .625
                                        ±.040
                                        ±.027
                                        ±.024
                                        +.053
                                        ±.027
                                        +.053
                                        ±.024
                                        .750
                                        ±.043
                                        ±.029
                                        ±.027
                                        +.058
                                        ±.029
                                        +.054
                                        ±.027
                                        .875
                                        ±.046
                                        -
                                        ±.030
                                        +.062
                                        ±.031
                                        +.060
                                        ±.030
                                        1.000
                                        ±.049
                                        ±.033
                                        ±.033
                                        +.065
                                        ±.033
                                        +.065
                                        ±.033
                                        1.250
                                        ±.055
                                        -
                                        ±.037
                                        +.073
                                        ±.037
                                        +.073
                                        ±.037
                                        1.500
                                        ±.061
                                        -
                                        ±.041
                                        +.081
                                        ±.041
                                        +.081
                                        ±.041
                                        1.750
                                        ±.067
                                        -
                                        ±.045
                                        +.089
                                        ±.045
                                        +.089
                                        ±.045
                                        2.000
                                        ±.073
                                        -
                                        ±.049
                                        +.097
                                        ±.049
                                        +.097
                                        ±.049
                                        Sheet tolerance thickness - At least 90% of the sheet will measure within the tolerance given in the above table.

                                        Sheet tolerance Length and Width - The tolerance in length and width of standard sheet sizes will be plus or minus 1" from standard.

                                        Thickness
                                        range "
                                        from - to
                                        Percentage
                                        warp & twist
                                        allowed
                                        36" width
                                        warp (")
                                        allowed
                                        48" length
                                        warp (")
                                        allowed
                                        .031 - .062
                                        5.0%
                                        1.800
                                        2.400
                                        .063 - .125
                                        2.5%
                                        .900
                                        1.200
                                        .126 - 2.50
                                        1.0%
                                        .360
                                        .480
                                        .251 - .750
                                        0.5%
                                        .180
                                        .240
                                        .750 - max
                                        0.25%
                                        .090
                                        .120
                                        Sheet tolerance Warp and Twist - In the case of warp, this percentage is stated in terms of the lateral dimensions (length or width); in the case of twist, one corner to the diagonally opposite corner.

                                        ** The value for grade G-7 is 1.5 percent
                                        Note 1- These values do not apply to cut pieces but only to sheet sizes manufactured.
                                        Note 2- For method of measuring warp and twist, see ASTM-D-709

                                        Also see Property Comparison Chart Click Here

                                         


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