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DESCRIPTION AND RECOMMENDED USES: 100% solid, Dura-Coat Elastomer 920 is a high-elongation, hybrid epoxy-urethane system designed for the complete encapsulation of equipment of virtually any shape, size, or configuration. Applied with simple mechanical preparation—requiring no abrasive blasting, heat, hot-work permits, or specialized tools—its elastomeric properties form a tough, flexible, and durable protective barrier that excludes moisture, providing outstanding resistance to crevice, galvanic, and atmospheric corrosion.
| Maximum Temperature (Dependent on service) | Minimum| Maximum | -30°C | 150°C | -22°F | 320°F | |
|---|---|---|---|---|
| Chemical Resistance | Water | Alkalis | Inorganic Acids | Organic Acids | Organic Solvents | Excellent | Excellent | Excellent | Regular | Excellent | ||
| Solids by Volume | 100% | |||
| Mixed Density | 1.4 | |||
| Shore A Durometer Hardness | 89 | |||
| Vertical SAG Resistance at 21°C (70°F) and 0.5mm (20mils) | No sag | |||
| Coverage for 515 g kit | 7.5sf@120mils | 0.7m²@0.5mm | ||
| Mix Ratio | 8:1 by weight | Base: Activator | ||
| Color | Grey as standard. Other colors contact the manufacturer | |||
| Shelf life (unopened containers) | 3 years at 55-95ºF (13-35ºC) | |||
Surface Preparation
Proper surface preparation is critical to the long-term performance of Dura-Coat Elastomer 920. The surface must be cleaned and decontaminated. Prepare with standard St2 or St3 mechanical cleaning.
Clean with solvents (acetone, xylene, alcohol or MEK) and a cloth. No need to apply primer, Dura-Coat Elastomer 920 is applied directly to metal or concrete.
Mixing
Thoroughly mix the Activator and Base with a mixing stick or with a low-speed blend. Mix by Weight: 8 part of the Base and 1 part of activator. Mix well to produce an even, smudge-free material. Never put solvents.
Application
Dura-Coat Elastomer 920 is applied with a brush.
To prevent run-off on vertical surfaces, the maximum recommended thickness per coat should be up to 0.5 mm (20 mils).
When used with a compatible release agent and corrosion inhibitor, Dura-Coat Elastomer 920 creates a peelable and resealable protection system.
| 16°C (60°F) | 25°C (77°F) | 32°C (90°F) | |
|---|---|---|---|
| Tack Free | 4 hours | 2 hours | 1 hour |
| Light Load | 12 hours | 6 hours | 3 hours |
| Overcoat End | 16 hours | 10 hours | 5 hours |
| Full Load | 24 hours | 12 hours | 6 hours |
| Full Chemical | 48 hours | 24 hours | 12 hours |
Clean Up
Tools must be immediately cleaned after usage by using industrial alkaline detergent.
Safety
Before using any products, review the appropriate Safety Data Sheet (SDS) or Safety Sheet for your area. Follow standard confined space entry and work procedures, if appropriate.