Chemola™ Desco TFE-Seal 108

For Hard to Seal Valves

Chemola™ Desco TFE-Seal 108 is the ultimate sealant for damaged valves. It was developed and tested by a group of valve repair specialists with over 20 years combined experience. This is the ultimate sealant of internally worn or damaged valves. It contains a 100% synthetic base fluid for excellent resistance to washout from hydrocarbons. If TFE-Seal 108 won’t seal your valve, it will need to be taken offline or rebuilt.

Recommended Uses

Chemola™ Desco TFE-Seal may be used on worn or pitted valves. It can also be used as a sealant for stuffing boxes or as an injectable packing.

Designed for use by qualified technicians only

Can cause ball check valve fittings to fail

Typical Characteristics

Appearance Dark gray, grainy, tacky
Penetration (ASTM D217)245-275
Worked Penetration, 60x (ASTM D217)245-275
Base OilNatural and synthetic ester
Base Oil Viscosity1,000 cSt at 40°C
Base Oil Pour Point-10°F (-12°C)
AdditivesH2S/corrosion inhibitor package
Solids ContentPTFE
Specific Gravity1.1
Density (lb/gal)9.5
Dropping Point (ASTM D566)>500°F (260°C)
Flash Point>500°F (260°C)
Temperature Range-20°F to 350°F (-29°C to 177°C)
Resistance to Water (FTM 5415)Pass
Resistance to 50% Ethanol in Water (FTM 5415)Pass
Resistance to Synthetic Condensate (FTM 5415 mod)Pass
Resistance to Mineral Spirits (FTM 5415 mod)Pass
Resistance to 20% Hexane in Mineral Spirits (FTM 5415 mod)Pass
Resistance to Diesel Fuel (FTM 5415 mod)Pass

Packaging Information

Item NumberUnit SizeQuantity
089816JBX"J" stick 1-3/8"x 8-1/2"16 per box
089812KBX"K" stick 1-1/2"x 10-1/2" 12 per box
0898010QB10 lb can
0898020WMS 20 lb pail
0898040WMS 40 lb pail
0898120KG120 lb keg