Tectyl 351S

TECTYL® 351-S is a premium water-based, asphalt emulsion corrosion preventive compound manufactured by Daubert Chemical Company. This economical underbody coating is specifically designed for protecting sensitive components on the underside of vehicles and transportation equipment used in both consumer and industrial settings. As a waterborne asphalt emulsion, TECTYL® 351-S provides excellent adhesion to metal or painted surfaces while being environmentally responsible with zero volatile organic compounds (VOC). Upon drying, it forms a firm, black, resilient, matte-textured film that is abrasion resistant and offers significant sound dampening properties, making it ideal for transportation equipment, trailer homes, modular homes, and sewage pipes.

Properties

• Dry Film Color: Black
• Film Type: Firm, resilient, matte-textured
• Liquid Appearance: Black
• Flash Point: None; Water-Based
• Weight per Gallon: 8.54
• Specific Gravity: 1.025
• Non-Volatiles by Weight: 50%
• Non-Volatiles by Volume: 48.70%
• Viscosity: 15,500 cPs (Brookfield RV Spindle #4 @ 10 rpm)
• VOC (lbs/gal minus water): 0
• High Temperature Flow: >350°F
• Wet Film Thickness: 16-20 mils
• Dry Film Thickness: 8-10 mils
• Coverage: 80-100 sq.ft/gal (approximately 79 square feet per gallon)
• Dry Time to Touch: 30-45 minutes
• Full Cure Time: 16-24 hours

Key Features

• Zero VOC Formula: Environmentally responsible with no volatile organic compounds
• Superior Corrosion Protection: Withstands 1,000 hours in 5% Salt Spray testing (ASTM B-117)
• Exceptional Humidity Resistance: Endures 2,000 hours in 100% Relative Humidity testing (ASTM D-1748)
• Weathering Resistant: Passes 300 hours in Weathering testing (Federal Standard 141, Method 6151)
• Quick Drying: Touch dry in just 30-45 minutes, significantly faster than similar products
• Sound Deadening: Provides significant noise reduction capabilities
• Abrasion Resistant: Durable protection against physical wear and environmental exposure
• Protection Duration: Offers up to 2 years of outdoor protection and 3 years of indoor protection
• Non-Flammable: Safe for application in virtually any workplace

Ideal Applications

Automotive and Transportation:

• Underbody protection for vehicles, trucks, and trailers
• Sound dampening for vehicle floors and wheel wells
• Protective coating for transportation equipment frames and chassis
• Trailer homes and recreational vehicles

Construction and Building:

• Modular home components requiring corrosion protection
• Metal structural elements exposed to moisture or salt
• Protection of sewage pipes and drainage systems
• Metal building components requiring sound dampening

Industrial Applications:

• Protection of sensitive components in industrial equipment
• Corrosion prevention for metal parts in high-humidity environments
• Sound-dampening treatment for metal enclosures and housings
• Metal surfaces requiring both physical protection and noise reduction

Application Guidelines

TECTYL® 351-S should be applied using conventional underbody rustproofing equipment:

• Recommended Equipment: 15:1 airless pump or greater that can deliver 800-1200 psi to a 0.017 to 0.025 reverse-a-clean tip
• Product Availability: Available in drums or totes
• Surface Preparation: Ensure metal surfaces are clean, dry, and free from rust, oil, and mill scale
• Application Temperature: Apply at temperatures between 50-95°F (10-35°C) to allow for proper film formation
• Coverage Rate: Apply to achieve recommended wet film thickness of 16-20 mils, which will result in 8-10 mils dry film thickness
• Application Method: Suitable for airless spray or dip application

Storage and Handling

• Temperature Sensitivity: DO NOT FREEZE – This product is water-based and should not be exposed to freezing conditions
• Storage Temperature: Store above 40°F and below 100°F (5-38°C)
• Shelf Life: Store in accordance with good industrial practices
• Removal: Can be removed with mineral spirits or citrus-based cleaners
• Safety Precautions: Use in well-ventilated areas; refer to the Safety Data Sheet for detailed handling instructions
• Packaging: Available in drums or totes for industrial application
• Environmental Benefits: Zero VOC formula makes it compliant with strict environmental regulations
• Documentation: Refer to SDS for additional safety information and handling recommendations