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
| Title | Value |
| Appearance | Dark gray, grainy, tacky |
| NLGI | 2-3 |
| Penetration (ASTM D217) | 245-275 |
| Worked Penetration, 60x (ASTM D217) | 245-275 |
| Base Oil | Natural and synthetic ester |
| Base Oil Viscosity | 1,000 cSt at 40°C |
| Base Oil Pour Point | -10°F (-12°C) |
| Thickener | Inorganic |
| Additives | H2S/corrosion inhibitor package |
| Solids Content | PTFE |
| Specific Gravity | 1.1 |
| 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 Number | Unit Size | Quantity |
| 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 |
| 0898010QB | 10 lb can | |
| 0898020WMS | 20 lb pail | |
| 0898040WMS | 40 lb pail | |
| 0898120KG | 120 lb keg |