Tectyl 502C Class I

TECTYL® 502C Class 1 is a premium solvent-based, soft film rust preventive coating manufactured by Daubert Chemical Company. This military-grade corrosion preventive compound is designed to provide a semi-firm, wax-like, translucent amber protective film for both ferrous and non-ferrous metal surfaces. Approved under Military Specifications MIL-PRF-16173E Grade 2 and meeting the performance requirements of MIL-C-16173E, Grade 2, Class 1, TECTYL® 502C Class 1 balances effective corrosion protection with ease of cleanability. Particularly suitable for outdoor applications where metal temperatures do not reach levels that produce prohibitive flow of the corrosion preventative, this product can be applied by brush, dip, or spray methods, providing long-term protection during storage and shipment.

Properties

• Dry Color: Amber, translucent
• Film Type: Oily, soft greasy, semi-firm wax-like
• Liquid Appearance: Brown
• Flash Point: 105°F (40°C PMCC)
• Weight per Gallon: 7.12
• Specific Gravity: 0.86 (approximately 0.88 kg/liter at 20°C)
• Non-Volatile by Weight: 60.4% (61% by weight)
• Non-Volatile by Volume: 56.4%
• VOC (lbs/gal minus water): 2.82 (317 g/liter ISO 11890-2)
• Viscosity: 65 cSt @ 100°F (16 seconds DIN 53211, Cup No. 4 at 20°C)
• Wet Film Thickness: 1.5 mils
• Dry Film Thickness: 0.86 mils (25 microns)
• Coverage: 850 sq.ft/gal (22.2 m²/liter)
• Impervious to Water: 1 hour
• Cure Time: 24 hours at 20°C

Key Features

• Military Grade Protection: Approved under Military Specification MIL-PRF-16173E Grade 2
• Exceptional Humidity Resistance: Endures 4,100 hours in 100% Relative Humidity testing (at least 40 days at 100% relative humidity and 40°C in ISO 6270-2 CH)
• Superior Salt Spray Protection: Withstands 624 hours in 5% Salt Spray testing (at least 7 days in 5% NaCl environment at 35°C in ISO 9227 NSS)
• Outdoor Capable: Can be used for outdoor protection where metal temperatures do not reach levels that produce prohibitive flow
• Translucent Film: Forms an amber, translucent film that allows for visual inspection
• Extended Protection: Provides up to 2 years (24 months) of indoor protection and 6 months of outdoor protection
• Grease-Like Consistency: Can often be put right into use without removal in some applications

Ideal Applications

Military and Defense:

• Protection of military equipment and components during storage and shipment
• Preservation of tactical and strategic equipment components
• Protection of precision parts in accordance with military specifications

Industrial and Manufacturing:

• Protection of precision parts where cleanability is important
• Preservation of metal components requiring visual inspection
• Protection of ferrous and non-ferrous fabrications
• Components that may be put into use without coating removal

Transportation and Shipping:

• Protection of metal parts during domestic and international transit
• Preservation of components during covered storage
• Corrosion prevention for parts during extended storage periods

Application Guidelines

TECTYL® 502C Class 1 can be applied by brush, dip, or spray methods:

• Application Methods: Can be applied by brush, dip, or spray
• Surface Preparation: Ensure metal surfaces are clean, dry, and free from rust, oil, and mill scale
• Application Temperature: Optimal substrate temperature between 10°C and 35°C (50-95°F)
• Temperature Conditions: Daubert Chemical Company recommends that the ambient and product temperature be 50-95°F (10-35°C) at time of application
• Thinning: DO NOT THIN – Incorrect thinning will affect film build, dry time, and product performance
• Thickening Issues: If product thickens due to cold storage or loss of solvent during use, contact Daubert Chemical Company

Storage and Handling

• Temperature Control: Store at moderate temperatures between 10-35°C (50-95°F)
• Shelf Life: Best used within 36 months from the production date under proper storage conditions
• Removal: Can be removed using mineral spirits, hot alkaline wash, low-pressure steam, or citrus-based cleaners
• Special Applications: When applied inside gearboxes, it dissolves in lubricating oil, eliminating the need for removal at low dilution ratios
• Safety Precautions: Ensure adequate ventilation during curing to prevent the formation of combustible vapors
• Container Management: Keep containers sealed when not in use
• Flash Point Awareness: Note the flash point of 105°F (40°C) for proper safety measures during storage and handling
• Documentation: Refer to SDS for additional safety information and handling recommendations