McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    81 Products
    About Composites
    industrial info icon

    Compare our offering of composites to find the right material for you.

    Ultra-High-Temperature Arc-Resistant Garolite G-7 Sheets and Bars

    Garolite G-7 withstands temperatures up to 425° F—higher than any other grade of Garolite. While not as strong as Garolite G-9 sheets, these sheets and bars offer better arc resistance in dry environments and a higher level of electrical insulation. They are constructed of a silicone resin with fiberglass fabric reinforcement. Garolite G-7 is sometimes called silicone-grade laminate, phenolic, and Bakelite. Use it to fabricate high-frequency telecommunication equipment, transformers, and other parts that require a high heat tolerance.
    Sheet
    Image of Product. Front orientation. Garolite. Ultra-High-Temperature Arc-Resistant Garolite G-7 Sheets and Bars.
    Temp.
    4" × 6"
    12" × 12"
    12" × 24"
    24" × 24"
    24" × 36"
    36" × 48"
    Min.
    Max.,
    ° F
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Hardness
    For Use
    Outdoors
    Mil. Spec.
    Flammability
    Rating
    Each
    Each
    Each
    Each
    Each
    Each
    1/32" Thick (-0.005" to 0.005")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		———08641K1130000008641K1140000008641K11500000008641K11600000008641K1170000000
     
    1/16" Thick (-0.008" to 0.008")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		———08641K121000008641K1410000008641K1610000008641K1810000008641K211000000
     
    1/8" Thick (-0.012" to 0.012")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		———08641K1220000008641K1420000008641K1620000008641K1820000008641K212000000
     
    3/16" Thick (-0.019" to 0.019")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		———08641K1230000008641K1430000008641K1630000008641K183000000———0
     
    1/4" Thick (-0.022" to 0.022")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		7017K410000008641K1240000008641K1440000008641K1640000008641K1840000008641K21400000000
     
    3/8" Thick (-0.03" to 0.03")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		———08641K1260000008641K1460000008641K1660000008641K186000000008641K21600000000
     
    1/2" Thick (-0.033" to 0.033")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		7017K61000008641K1270000008641K1470000008641K1670000008641K18700000000———0
     
    3/4" Thick (-0.043" to 0.043")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		7017K710000008641K1330000008641K1340000008641K135000000008641K13600000000———0
     
    1" Thick (-0.049" to 0.049")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		7017K810000008641K1530000008641K15400000000———0———0———0
     
    Bar
    Image of Product. Front orientation. Garolite. Ultra-High-Temperature Arc-Resistant Garolite G-7 Sheets and Bars.
    Temp.
    1" × 24"
    1" × 48"
    1 1/2" × 24"
    1 1/2" × 48"
    2" × 24"
    2" × 48"
    Min.
    Max.,
    ° F
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Hardness
    For Use
    Outdoors
    Mil. Spec.
    Flammability
    Rating
    Each
    Each
    Each
    Each
    Each
    Each
    1/8" Thick (-0.012" to 0.012")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		6125N1110000006125N1120000006125N1130000006125N1140000006125N1150000006125N116000000
     
    1/4" Thick (-0.022" to 0.022")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		6125N117000006125N118000006125N119000006125N1210000006125N122000006125N123000000
     
    1/2" Thick (-0.036" to 0.036")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		6125N124000006125N1250000006125N126000006125N1270000006125N1280000006125N129000000
     
    3/4" Thick (-0.043" to 0.043")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		6125N131000006125N1320000006125N1330000006125N1340000006125N1350000006125N136000000
     
    1" Thick (-0.049" to 0.049")
     
    Off-White
    Not Rated42518,000 to 27,7006.5 to 19.1Rockwell M65
    (Hard)    		NoMIL-I-24768/17UL 94 V-0
    		6125N1370000006125N1380000006125N1390000006125N1410000006125N1420000006125N143000000
     

    Ultra-High-Temperature Arc-Resistant Garolite G-7 Rods

    Image of Product. Front orientation. Garolite. Ultra-High-Temperature Arc-Resistant Garolite G-7 Rods.
    Choose these Garolite G-7 rods for their high heat tolerance—they withstand temperatures up to 425° F. While not as strong as Garolite G-9 rods, they offer better arc resistance in dry environments and a higher level of electrical insulation. These rods are constructed of a silicone resin with fiberglass fabric reinforcement. Garolite G-7 is sometimes called silicone-grade laminate, phenolic, and Bakelite. Use it to fabricate high-frequency telecommunication equipment and parts that require a high tolerance to heat.
    Temp.,
    ° F
    Dia.
    Dia. Tolerance
    Min.
    Max.
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Hardness
    For Use
    Outdoors
    Mil. Spec.
    Flammability
    Rating
    1 ft.
    4 ft.
     
    Off-White
    1/4"-0.003" to 0.003"-4042518,000 to 27,7006.5 to 19.1Rockwell M105
    (Extra Hard)    		NoMIL-I-24768/17UL 94 V-0
    		8524K61000000000000
    5/16"-0.003" to 0.003"-4042518,000 to 27,7006.5 to 19.1Rockwell M105
    (Extra Hard)    		NoMIL-I-24768/17UL 94 V-0
    		8524K620000000000
    3/8"-0.003" to 0.003"-4042518,000 to 27,7006.5 to 19.1Rockwell M105
    (Extra Hard)    		NoMIL-I-24768/17UL 94 V-0
    		8524K630000000000
    1/2"-0.003" to 0.003"-4042518,000 to 27,7006.5 to 19.1Rockwell M105
    (Extra Hard)    		NoMIL-I-24768/17UL 94 V-0
    		8524K640000000000
    5/8"-0.003" to 0.003"-4042518,000 to 27,7006.5 to 19.1Rockwell M105
    (Extra Hard)    		NoMIL-I-24768/17UL 94 V-0
    		8524K6500000000000
    3/4"-0.003" to 0.003"-4042518,000 to 27,7006.5 to 19.1Rockwell M105
    (Extra Hard)    		NoMIL-I-24768/17UL 94 V-0
    		8524K6600000000000
    1"-0.003" to 0.003"-4042518,000 to 27,7006.5 to 19.1Rockwell M105
    (Extra Hard)    		NoMIL-I-24768/17UL 94 V-0
    		8524K6700000000000
    1 1/2"-0.003" to 0.003"-4042518,000 to 27,7006.5 to 19.1Rockwell M105
    (Extra Hard)    		NoMIL-I-24768/17UL 94 V-0
    		8524K68000000000000
     
    back to top