The HS-974 is a polysilazane thin-film formulated coating product that offers good abrasion resistant, corrosion protection, and high operating temperatures and/or direct flame. It is available in limited metallic and solid tone colors that withstand extremes.
The HS-974 is a high performance, ambient curable and/or oven cured high Temperature use product. The HS-974 coating is designed for uses that demand a coating that offers
- High temperature and flame resistance
- Good corrosion resistance
- A long lasting, smooth, thin film coated surface
This hybridized polysilazane covalently bonds “directly” to all ferrous and non-ferrous alloys, composites, rigid plastic alloys, etc. without the need of other coatings or primers. It applies as a thin (0.4 to 0 .70 mil dry film thickness) that will ambient or oven cure.
HS-974 Properties
| Color | Standard Military colors and more |
| Viscosity | 16.0-16.3 sec. #2 Zahn |
| Percent of Solids | 46% |
| Odor (liquid) | Slight Solvent |
| Odor (cured) | None |
| V.O.C. | Exempt per CFR 51.100/regulation 8 |
| RoHS | Compliant |
| Halogens | None |
| Thermal Stability (cured) | 1200+ degrees F (648.8 degrees C) |
| Conical Bond (1/8 inch mandrel) | Passed (ASTM D522-93a) |
| Cross cut adhesion | 5B (ASTM D3359) |
| Coefficient of Friction | 0.05 microns (ASTM D2047) |
| Salt Fog Test | 1000 hrs (ASTM B117) |
| Specific Gravity | 0.9 (ASTM D891-09) |
| Pencil Hardness | 9h+ (ASTM D3363) |
| Average applied dry film thickness | 5 to 15 microns (0.4-1 mil) |
| Est. Coverage Rate @ 3 microns | 1200 sq ft / gal |
| Dry to Touch (time @ ambient) | 15-25 minutes (average) |
| Ambient cure (full properties) | 5 days |
| Cure Time (time @ 350 degrees F) | 30-40 minutes PMT (average) |