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CheckSeal™ 3B

Semi-Curing Rubber Sealant

Check Seal™ 3B cures to an extremely tough, semi-pliable rubber at high temperatures. It is designed for use with temperatures up to +700˚F, and is effective as a primary and secondary sealant. It has been successfully used as a secondary micro-void sealant after initial sealant failed.

Typical Characteristics

TitleValue
ApplicationsAcids, steam, some solvents, fuels, glycols, mild alkalis, aliphatic hydrocarbons, hot oils, kerosene, steam, water, liquors. It also has been used successfully as a secondary micro-void filler after injecting a different sealant on the real problem leaks.
Temperature Range20°F to 700°F (-6.66°C to 371°C)
LimitationsShould not be used at temps over 700°F (371°C)
Appearance Yellow paste
Specific Gravity0.9
Volume191 cu. in – 1 gal pail
Volume14 cu. in – J stick
Volume1.1 cu. in – 3.5” plug
Injection Characteristics 500 psi, flows well with minimum hydraulic pressure
CureCures at 350°F to 400°F, non-curing at lower temps
Long Term ChangesNone
StorageKeep at room temperature

Packaging Information

Item NumberUnit SizeQuantity
CS300511“J” stick 1-3/8” x 8-1/2" 16 per box
CS08265001PL3/4” x 4 plugs10 per pouch