Check Seal™

Check Seal™ provides an array of products for online leak protection. This line offers both curing and non-curing sealants and packing.

Check Seal™ 55 R

Rubber Sealant

Check Seal™ 55 R is an elastomeric, nitrile rubber type sealant that cures hard and works great on hot condensate or boiler feedwater leaks. It can be injected by a high-pressure sealant/lubricator gun.

Typical Characteristics

Applications Fuels, glycols, mild acids, aliphatic hydrocarbons, hot oils, kerosene, steam, bfw and liquors
Note: For chemicals, refer to compatibility chart  
Temperature Range  240°F to 450°F (116°C to 232°C)
Limitations Should not be used at temps over 450°F (232°C)
Appearance Black rubber stick
Injection Characteristics Must be injected with high pressure sealant gun
Cure Cures to hard rubber, makes a hard carbon seal at higher temperatures
Long Term Changes None
Storage 70°F or lower

Packaging Information

Item Number Unit Size   Quantity
CS550111 5/8” x 3” plugs 100 minimum

Do Not Use On Oxygen Services.

Special packaging sizing available upon request.


More Curing