Intrepid Coatings TT-P-1757B/TY2/CL.N YELLOW (12-OZ-AEROSOL)

TT-P-1757B Type II Class N Non-Chromate Primer

Overview

TT-P-1757B Type II Class N Non-Chromate Primer is a low-VOC, single-component alkyd-based corrosion-inhibiting primer designed for aerospace and industrial metal protection applications. Formulated with non-chromate corrosion inhibitors, the primer provides effective substrate protection while offering low moisture sensitivity and compatibility with a wide range of surface preparation systems. It is primarily intended for treated aluminum and other properly prepared metallic substrates and may be used with or without a topcoat.

Key Technical Characteristics

• Product Type: Corrosion-inhibiting primer
• Chemistry: Alkyd-based
• Configuration: Single-component
• Corrosion Inhibitor: Non-chromate
• VOC Characteristics: Low VOC formulation
• Solids Content (by Weight): Minimum 59%
• Fineness of Grind: Minimum 6
• Available Colors:
  • Green
  • Yellow
• Dry Hard Time: Within 15 minutes
• Shelf Life: 1 year
• Recommended Thinner: MIL-T-81772B Type III

Core Performance Benefits

• Provides effective corrosion protection for metallic substrates
• Non-chromate formulation supports environmental compliance objectives
• Can be used with or without a topcoat system
• Low moisture sensitivity improves application flexibility
• Fast drying reduces coating process times
• Compatible with aerospace surface pretreatment systems
• Single-component design eliminates mixing requirements
• Suitable for spray, brush, dip, and flow-coat application methods

Typical Applications

• Treated aluminum structures
• Aerospace metal components
• Steel surfaces
• Galvanized substrates
• Non-ferrous metal components
• Aircraft maintenance and refinishing operations
• Industrial corrosion protection systems
• Primer systems requiring non-chromate technology

Material Engineering & Design Features

TT-P-1757B Type II Class N utilizes alkyd resin technology combined with non-chromate corrosion inhibitors to provide durable substrate protection while reducing reliance on traditional chromate-containing materials. The formulation is engineered to produce a fast-drying protective coating with strong adhesion characteristics and corrosion resistance.

The primer is specifically intended for use on:

• Surface-treated aluminum
• Steel substrates
• Galvanized metals
• Non-ferrous metals
• Surfaces pretreated with MIL-C-8514C systems
• Surfaces pretreated with DOD-P-15328D systems

Key performance characteristics include:

• Corrosion-inhibiting protection
• Low moisture sensitivity
• Fast dry-hard performance
• Low VOC content
• Flexible use with or without topcoat systems

Installation & Handling

• Ensure surfaces are clean, dry, and free from contaminants before application
• Remove grease, oil, dirt, and loose coatings in accordance with SSPC-SP-1 cleaning procedures
• For aluminum substrates, apply over approved pretreatment wash primers where specified
• Sand oxidized alloys lightly to remove loose oxidation products
• Apply by:
  • Spray
  • Brush
  • Dip coating
  • Flow coating
• Apply a full wet coat to maximize adhesion and corrosion protection
• For spray application, thin up to 15% by volume using approved thinners as required
• Allow coating to dry hard before handling or further processing

Environmental & Compliance Notes

• Non-chromate corrosion inhibitor technology
• Low VOC formulation
• Flammable product�keep away from ignition sources
• Use only with adequate ventilation
• Avoid contact with skin and eyes
• Read applicable Safety Data Sheet (SDS) before use
• Store in original sealed containers under recommended conditions

Key Advantages for Aerospace Use

• Provides corrosion protection without chromate pigments
• Compatible with aerospace pretreatment systems
• Fast drying improves production and maintenance efficiency
• Can function as a standalone primer or within multi-layer coating systems
• Low moisture sensitivity supports consistent application performance
• Suitable for treated aluminum and mixed-metal aircraft structures
• Single-component formulation simplifies application procedures
• Meets applicable government specification requirements