Tectyl 3335

TECTYL® 3335 Black is a premium, environmentally friendly, water-based corrosion preventive coating manufactured by Daubert Chemical Company. This paintable chip-resistant underbody coating is specifically formulated to provide exceptional protection against rust, corrosion, chipping, scratching, and gravel impacts typically experienced on truck and trailer underbodies. With nearly zero VOC content (0.04 lbs/gal) and free from Hazardous Air Pollutants (HAPS), it delivers high-performance protection while minimizing environmental impact. Beyond physical protection, this coating also functions as an effective sound dampening solution, reducing sheet metal resonance and structural borne noise while providing significant corrosion inhibition for both ferrous and non-ferrous metals.

Properties

• Dry Film Color: Black
• Film Type: Abrasion Resistant
• Liquid Appearance: Blue/Black
• Non-Volatile by Weight: 55%
• Non-Volatile by Volume: 42%
• VOC (lbs/gal minus water): 0.04
• Viscosity: 9,000 cPs (Brookfield RV Spindle #4 @ 10 rpm)
• Weight per Gallon: 10.75
• Specific Gravity: 1.29
• Flash Point: None (Water Based)
• Wet Film Thickness: 17.5 mils (recommended 14-20 mils)
• Dry Film Thickness: 8.0 mils (recommended 6-10 mils)
• Coverage: 90 sq.ft/gal (48-73 sq.ft/gal at recommended thickness)
• Dry Time to Touch: 30-60 minutes
• Full Cure Time: 72 Hours
• Shelf Life: 1 year
• Durability: Up to 3+ years outdoor protection, 5+ years indoor protection

Key Features

• Environmentally Friendly: Free from hazardous air pollutants and nearly zero VOC content
• Paintable: Can be topcoated with most urethane, acrylic, or alkyd resin automotive finishes
• Superior Corrosion Protection: Withstands 2,000 hours in 5% Salt Spray testing and 1,000 hours in 100% Relative Humidity testing
• Exceptional Impact Resistance: 9A Excellent Rating in Gravelometer testing with no adhesion loss
• Noise Reduction: Effectively dampens vibration and reduces structural noise
• Durable Yet Flexible: Maintains flexibility while offering exceptional resistance to abrasion
• Water-Based Formula: Environmentally responsible with simple soap and water cleanup when wet

Ideal Applications

Automotive and Transportation:

• Complete undercoating for trucks, trailers, and automotive underbodies
• OEM transportation equipment including U.S. military vehicles
• Rail cars, intermodal trailers, and construction equipment
• Wheel wells, fender liners, and chassis components
• Protection against saltwater corrosion for military vehicles

Industrial Uses:

• External trash chutes in high-rise buildings (not recommended for interior chutes)
• Noise dampening for metal laundry chutes in high-rise buildings
• Metal surfaces requiring both impact resistance and corrosion protection
• Applications requiring sound dampening and vibration reduction

Application Guidelines

TECTYL® 3335 Black should be applied using conventional underbody rustproofing equipment. For optimal performance:

• Recommended Equipment: 10:1 airless pump or greater that can deliver 800-1200 psi to a .017 to 0.025 reverse-a-clean tip
• Enhanced Equipment Options: Pumps with ratios of 15:1 or greater for more efficient application
• Spray Distance Capacity: Low-ratio pumps (15-30:1) can operate through up to 150 ft. of hose, while high-ratio pumps (>30:1) can operate through up to 250 ft. of hose
• Hose Requirements: High-pressure fluid hoses should be at least 3/8 in. in diameter
• Nozzle Recommendations: Tungsten carbide nozzles with a .019″ to .023″ tip orifice size
• Application Temperature: Apply at temperatures above 50°F to allow for proper film formation
• Surface Preparation: Ensure substrate is clean and appropriately prepared
• Drying Time: Dries to handle within 1 hour, fully cured in 72 hours

Storage and Handling

• Temperature Sensitivity: DO NOT FREEZE – This product is water-based and is not freeze/thaw stable
• Critical Warning: Exposure to temperatures below 32°F will result in severe damage to the product
• Application Conditions: The dry time depends on temperature, relative humidity, and air circulation
• Substrate Temperature: Do not apply to a substrate below 50°F
• Freezing Precautions: Wet films should not be exposed to freezing temperatures without sufficient dry times
• Cleaning: Can be removed when wet (within 20 minutes) using soap and water
• Safety Information: Consult the SDS for additional safety information and handling recommendations
• Shelf Life: Product has a shelf life of 1 year when properly stored