Description
TECTYL 518 is a premium, solvent-based corrosion preventive compound manufactured by Daubert Chemical Company, Inc. This military-grade protective coating meets rigorous specifications including MIL-C-0083933A, MIL-C-62218A, and A-A-59295 Type I and II. Formulated as a gelled calcium sulfonate cutback with mineral spirits, TECTYL 518 delivers outstanding long-term protection for various transportation equipment, including automobiles, trucks, trailers, and military vehicles. This thixotropic coating has a gel-like consistency when uncured, becoming more fluid with mixing and agitation. In its liquid form, TECTYL 518 appears amber in color, while the cured film takes on a translucent tan appearance that provides durable protection while allowing visual inspection of underlying surfaces.
Properties
- Dry Film Color: Tan, translucent
- Film Type: Semi-Firm, wax-like
- Non-Volatile Content: 57.70% by weight, 48.80% by volume
- VOC Content: 3.29 lbs/gal minus water
- Viscosity (Brookfield RV): 2,600 cPs (Spindle #3 @ 10 rpm)
- Weight per Gallon: 7.85 lbs
- Flash Point: 105°F
- Specific Gravity: 0.942
- Wet Film Thickness: 10.2-14 mils (recommended)
- Dry Film Thickness: 5-6 mils (recommended)
- Theoretical Coverage: 135-155 sq.ft/gallon
- Cure Time (Dry to Touch): 2-4 hours
- Cure Time (Weatherproof): 4 hours
- Cure Time (Full): 24 hours
- Salt Spray Resistance: 1,500 hours (ASTM B-117)
- Humidity Resistance: 3,000 hours (ASTM D-1748)
- Dielectric Strength: 800 volts per mil
- Protection Duration: Up to 3 years on metal and wood substrates
Key Features
- Military-Approved Protection: Meets rigorous military specifications for demanding environments
- Superior Corrosion Resistance: Significantly outperforms basic asphalt-based underbody coatings
- Self-Healing Film: The wax-like coating can repair itself when disrupted by minor damage
- Translucent Finish: Allows for visual inspection of underlying surfaces while providing protection
- Quick Drying Formula: Solvent-based carrier allows the liquid coating to dry quickly
- Excellent Adhesion: Adheres effectively to various metal and plastic materials
- Enhanced Water Repellency: Repels water more readily than asphalt-based coatings
- Low-Temperature Flexibility: Remains flexible at low temperatures, preventing cracking
- Versatile Application: Can be applied over previously coated surfaces
- Dielectric Properties: 800 volts per mil prevents galvanic corrosion between dissimilar metals
- Abrasion Resistance: Provides durable protection against physical wear and environmental factors
Ideal Applications
Automotive Industry:
- Vehicle underbody protection
- Chassis components and frames
- Wheel wells and suspension parts
- Trailer undercarriages
- RV and motorhome underbody protection
- Battery terminals for insulation purposes
Military Equipment:
- Military transport vehicles
- Combat and tactical vehicles
- Equipment used in extreme environments
- Field maintenance applications
- Long-term equipment storage protection
Commercial Transportation:
- Truck beverage bodies
- Commercial trucks and buses
- Heavy equipment underbody areas
- Agricultural equipment
- Construction equipment
- Marine applications (above waterline)
Industrial Uses:
- Metal equipment exposed to outdoor environments
- Storage tanks and containers
- Steel structures requiring corrosion protection
- Equipment operating in high humidity conditions
- Facilities in coastal environments
- Wood substrates requiring weatherproofing
Application Guidelines
- Surface Preparation: Ensure surfaces are clean, dry, and free from rust, loose scale, and other contaminants
- Temperature Control: Apply when ambient temperature is between 50-95°F
- Equipment Selection: Use conventional rustproofing equipment
- Pump Specifications: Daubert recommends a 10:1 airless pump or greater (15:1 or greater for maximum efficiency)
- Spray Tip: Use tungsten carbide nozzles with 0.017 to 0.025 reverse-a-clean tip orifice size
- Hose Requirements:
- Use 3/8 in diameter hose for distances less than 50 ft
- For distances up to 150 ft, use 100 ft of 1/2 in hose and 50 ft of 3/8 in hose
- Application Method: Apply evenly to achieve recommended film thickness
- Drying Time: Allow 4 hours for weatherproof protection, 24 hours for full cure
Equipment Recommendations:
- Airless spray equipment (10:1 ratio or greater)
- Proper spray tips and pressure settings
- High-pressure fluid hoses of appropriate diameter
- Cleaning equipment and solvent for equipment cleanup
- Appropriate personal protective equipment (PPE)
Storage and Handling
- Removal Method: Wet and dry film can be removed with mineral spirits or citrus-based solvents
- Safety Precautions: Refer to Daubert’s Safety Data Sheet (SDS) for complete health and safety information
- Flammability Warning: Product has a flash point of 105°F, keep away from heat, sparks, and open flames
- Storage Conditions: Store in a cool, dry location away from direct sunlight
- Shelf Life: Consult manufacturer’s guidelines for specific shelf life information
- Incompatibility: Verify compatibility before mixing with other products or coatings
- Disposal: Dispose of in accordance with local, state, and federal regulations
- Contact Information: For additional information, contact Daubert Chemical Company at 1-800-688-0459 or www.daubert.com