Tectyl 894 Class I

Tectyl 894 Class I is a semi-firm, water-displacing, and lubricating corrosion preventive compound specifically designed for heavy-duty applications. It’s QPL approved under Military Specification MIL-PRF-16173E, Grade 3, Class I and meets MIL-P-116J, Type P-3 requirements. This product represents one of Daubert Chemical Company’s military-grade solutions for protection against corrosion.

Key Specifications

• Military Specification: MIL-PRF-16173E, Grade 3, Class I
• Secondary Compliance: MIL-P-116J, Type P-3
• VOC Content: Exceeds 2.8 lbs/gallon (340 grams/liter) – distinctive of Class I products
• Liquid Appearance: Amber
• Dry Film Color: Amber
• Film Type: Semi-Firm

Physical Properties

• Non-Volatiles by Weight: 57.5%
• Non-Volatiles by Volume: 53.4%
• Specific Gravity: 0.85
• Weight per Gallon: 7.09 lbs
• Viscosity: 41 cSt @ 100°F
• Flash Point: 105°F
• Dry Film Thickness: 0.4 mils
• Coverage: 1,215 sq.ft/gallon

Performance Characteristics

• 100% Relative Humidity (ASTM D-1748): 4,800 hours
• Salt Spray Testing (ASTM B-117): Not applicable for Grade 3 products
• Indoor Protection Duration: 2 years
• Outdoor Protection Duration: 2 months
• Cure Time: 24 hours

MIL-PRF-16173E Grade System Context

Tectyl 894 Class I falls under Grade 3 in the MIL-PRF-16173E specification system, which classifies corrosion preventive compounds into 5 distinct grades:

• Grade 1 (represented by Tectyl 891D): Hard film, suitable for long-term outdoor protection (2 years)
• Grade 2 (represented by Tectyl 502C): Soft film, medium-term protection (6 months outdoor)
• Grade 3 (Tectyl 894): Semi-firm film, suitable for shorter outdoor exposure (2 months)
• Grade 4 (Tectyl 846): Transparent film, longer protection (2 years outdoor)
• Grade 5 (Tectyl 511M): Thin film, short-term protection (2 months outdoor)

Class I vs Class II Distinction

The military specification divides each grade into two classes:

• Class 1: Conventional formulations with higher VOC content (>2.8 lbs/gallon)
• Class 2: Low VOC formulations (≤2.8 lbs/gallon)

For Tectyl 894, the Class I version has a VOC of 3.01 lbs/gallon, while the Class II version has 2.45 lbs/gallon.

Application Methods

• Preferred Method: Dipping
• Alternate Methods: Brush or spray application
• Temperature Recommendation: 50-95°F (10-35°C) for both ambient and product
• Specialized Equipment:
  • Pumps with minimum ratio of 15:1
  • Tungsten carbide nozzles (0.011″ to 0.017″)
  • Specific hose configurations depending on pump ratio

Removal

Can be removed using:

• Mineral spirits
• Citrus-based cleaners
• Hot alkaline wash
• Low-pressure steam

Availability

Available in multiple packaging options:

• 55-gallon drum (NSN: 8030-00-244-1294)
• 5-gallon can (NSN: 8030-00-244-1293)
• 1-gallon can (NSN: 8030-00-244-1296)
• 1-pint can (NSN: 8030-00-837-6557)

Tectyl 894 Class I represents a specific solution within Daubert’s comprehensive lineup of military-approved corrosion preventive compounds, offering the higher solvent content beneficial for applications requiring enhanced penetration characteristics while delivering reliable protection for up to 2 years in indoor storage conditions.