TECTYL 891D Class I is a solvent cutback, firm film, black asphaltic corrosion preventive compound. It provides long-term protection for metallic surfaces in indoor or outdoor exposure and during international shipments. It is approved under MIL-PRF-16173E Grade 1 Class I and MIL-P-116J Type P-1.
Typical Properties
- Flash point (PMCC) min 40.6 °C (105 °F); specific gravity (15.6 °C) 0.88
- Recommended dry film thickness 64 µm (2.5 mils); theoretical coverage at this thickness 8.3 m²/L (340 sq ft/gallon)
- Non-volatile 60 ± 4% by weight, 53 ± 2% by volume; VOC max 443 g/L (3.7 lb/gallon)
- Dry to touch at 25 °C about 2 hours; cure time 24 hours; resistance to flow (MIL-16173E) pass
Accelerated Corrosion Tests (at recommended film thickness)
- 5% salt spray (ASTM B-117) 864 hours
- 100% relative humidity (ASTM D-1748) 960 hours
- Weathering (Federal Standard 141, Method 6151) 1200 hours
Application and Storage
- Surfaces must be clean, dry and free of rust, oil and mill scale; metal, ambient and product temperature 10–35 °C
- Used as supplied, do not thin; spray or dip applied
- Removed with solventborne thinner, vapour degreasing, hot alkaline wash or low pressure steam
- Store at 10–35 °C; mild agitation is recommended before use
| Packing | 1 QT or 1 USG or 5 USG |