Description
Tectyl 121B is a solvent-based, thixotropic corrosion preventive compound designed primarily for undercoating transportation equipment. Upon curing, it forms a firm, black, resilient film that is both abrasion-resistant and provides sound-deadening properties.
Key Features
- Corrosion Protection: Offers robust protection against rust and corrosion, making it suitable for automotive underbodies and other transportation equipment.
- Abrasion Resistance: The cured film is resilient and resistant to abrasion, ensuring durability in harsh conditions.
- Sound Deadening: Provides sound-deadening properties, reducing noise associated with vehicle operation.
Technical Specifications
- Appearance: Black, thixotropic liquid; forms a firm, black film upon curing.
- Non-Volatile Content: Approximately 62% by weight; 50% by volume.
- Specific Gravity: 1.02 at 60°F (15.6°C).
- Weight per Gallon: 8.5 ± 0.1 lbs. at 77°F (25°C).
- Flash Point: Minimum 106°F (Penske Martin Closed Cup).
- Recommended Dry Film Thickness: 15–20 mils.
- Theoretical Coverage: Approximately 45.82 sq. ft./gallon at the recommended dry film thickness.
- Volatile Organic Content (VOC): Maximum 3.4 lbs./gallon.
Application Methods
- Surface Preparation: Ensure surfaces are clean, dry, and free from rust, oil, and mill scale for optimal performance.
- Application Techniques: Can be applied by spraying or brushing.
- Application Temperature: Recommended ambient and product temperature is between 50–95°F (10–35°C).
Removal
Tectyl 121B can be removed using mineral spirits or similar petroleum solvents.
Compliance
Approved under Federal Specification TT-C-520B.
Storage and Handling
- Storage Temperature: Store between 50–95°F (10–35°C).
- Shelf Life: Best used within 36 months from the date of manufacture when stored under proper conditions.
- Precautions: Ensure adequate ventilation during application and curing to prevent the formation of combustible vapors.
Tectyl 121B is particularly suitable for applications requiring durable, long-term protection of metal surfaces in transportation equipment, offering both corrosion resistance and sound-deadening benefits.