Chemola™ Desco Polymel 422
Enhanced Hydrocarbon Service
DESCO Polymel 422 is a premium performance lubricant for use in alkylation processes using hydrofluoric acid. Polymel 422 contains a specially formulated polymeric lubricant base and unique combination of solid additives that offers superior metal adhesion under the most demanding conditions, temperatures and pressures. Polymel 422 has advanced corrosion inhibitors for increased resistance to oxidation. Because of its performance with acids and alkalis, it resists wash out during maintenance.
DESCO Polymel 422, with its wide temperature range, superior adhesion, and chemical resistance, covers a wide range of applications. It performs excellently with gate, plug, and ball valves designed for use in petrochemical plants.
Recommended Uses
DESCO Polymel 422 can be used with acids, sour crude/gas, alkalis, salt water, sand slurries and condensates. Polymel 422 can be used as a coating on metal surfaces to protect across a wide pH range.
Typical Characteristics
| Title | Value |
| Appearance | Black |
| NLGI | 2 |
| Penetration (ASTM D217) | 280-310 |
| Worked Penetration, 60x (ASTM D217) | 280-310 |
| Base Oil | Synthetic blend |
| Base Oil Viscosity | 2,800 cSt at 80°C |
| Thickener | Inorganic |
| Solids Content | Molybdenum disulfide, graphite |
| Specific Gravity | 1.3 |
| Density (lb/gal) | 11.0 |
| Dropping Point (ASTM D566) | >500°F (260°C) |
| Flash Point | >300°F (149°C) |
| Temperature Range | -20°F to 600°F (-29°C to 316°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 |
| 042216JBX | "J" stick 1-3/8"x 8-1/2" | 16 per box |
| 042212KBX | "K" stick 1-1/2"x 10-1/2" | 12 per box |
| 0422010CN | 10 lb can | |
| 0422020BP | 20 lb pail | |
| 0422040WMS | 40 lb pail | |
| 0422120KG | 120 lb keg | |
| 0422400DR | 400 lb drum |