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CheckSeal™ 38P

Non Curing Sealant

Check Seal™ 38P is a sealant compound containing TFE-fluorocarbon particles blended into a synthetic binder. It can be either pre-formed manually or pumped into place with a high pressure (10,000 psi) grease gun. 38P is chemically stable and resistant to most chemicals over a wide pH range. It is a highly versatile and durable self molding sealant used for stuffing boxes and for all types of valves, pumps and mechanical equipment.

Typical Characteristics

ApplicationsAlkalis, butane, gasoline, hydrofluoric acid, natural gas and propane CAUTION: PTFE exposed to temperatures above 500°F generate free fluorine gas.
Temperature Range -180°F to 500°F (-117°C to 260°C)Limitations
Limitations Should not be used at temps over 500°F (260°C) as PTFE can generate toxic fluoride compounds
AppearanceOff-white grainy sticks or paste
Penetration (ASTM D217)40-80
Specific Gravity1.5
Density (lb/gal)12.6
Injection Characteristics2000 psi, flows adequately at higher pressures
Long Term ChangesSome loss of carrier with pressure and temperature; reinjection may be required
StorageKeep in dry area

Packaging Information

Item NumberUnit SizeQuantity
CS0815001PL3/4” x 4" plugs10 per pouch
CS0815010BP12 lb
CS081516JBX100J-12, “J” stick 1-3/8” x 8-1/2"16 per box