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CheckSeal™ 9B & 9F

Thermosetting Sealant

Check Seal™ 9B & 9F are sealants with heavy fibers that cure upon the application of heat to form a very hard set solid sealant which blocks leak paths. Check Seal™ 9B is a thermosetting resin reinforced with a fibrous bulk material and works great with boilerfeed water leaks. Check Seal™ 9F is a thermosetting resin more heavily fibered material for improved sealing traits and higher temperature performance up to 1500°F, such as high temperature catalyst flue gas leaks.

Recommended Uses

It is used in a wide variety of industrial applications including sealing wire wraps, clamps and enclosures.

Typical Characteristics

ApplicationsSteam, water and a wide variety of chemical leaks
Temperature Range9F: 250°F (121°C) to 1500°F (815°C) 9B: 200°F (93°C) to 800°F (426°C)
LimitationsWith added fiber, can be used at temps over 1500°F (815°C)
AppearanceBlack fibrous stick
Stick Volume3/4” x 4” plug (1.1 cu in), “J” Stick (12.6 cu in)
Injection CharacteristicsSealant flows well 450 psi, with minimum hydraulic pressure
CureOver 200°F hard cure; the higher the temperature, the faster the cure
Long Term Changes None
Storage70°F or cooler; storage in freezer gives longer life

Packaging Information

Item NumberUnit SizeQuantity
CS900511(9B) “J” stick 1-3/8” x 8-1/2”16 per box
CS0839001PL (9B)3/4” x 4 plugs10 per pouch
CS900711(9F)“J” stick 1-3/8” x 8-1/2”16 per box
CS0839F01PL (9F)3/4” x 4 plugs10 per pouch
CS0839BBLK 1 Gal Bulk
CS0839FBLK 1 Gal Bulk