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™ 6B

Semi-Curing Packing Sealant


Check Seal™ 6B is a pumpable valve packing designed for use in high temperatures up to 800˚F. It is also available in high purity grade for nuclear and turbine applications.

Typical Characteristics


Glycols, hydrocarbons, water, steam, bfw and many more solvents. Good general purpose valve packing.

Note: For chemicals, refer to compatibility chart  
Temperature Range -65°F to 800°F (-17°C to 426°C)
Limitations Should not be used at temps over 800°F (426°C)
Appearance Black fibrous stick
Penetration (ASTM D217) 80-130
Specific Gravity 1.4
Volume 12.6 cu. in – J stick
Volume 1.1 cu. in – 3.5” plug
Injection Characteristics 900 psi, flows well with minimum hydraulic pressure
Cure Slight cure at higher temps, non-curing at lower temps
Long Term Changes

Some loss of carrier with pressure and temp; re-injection may be required

Storage Keep in dry area


Packaging Information

Item Number Unit Size   Quantity
 CS600111 1 gal kit, 10 lb  
 CS600211 “J” stick 1-3/8” x 8-1/2”  16 per box
 CS08051001PL 5/8” x 4 plugs  10 per pouch


Do Not Use On Oxygen Services.

Special packaging sizing available upon request.

More in this category: « Check Seal™ 3B Check Seal™ 8AB »

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