AkzoNobel SP350 KIT (1-LTR-KIT)

Additional Product Information

Overview

A chromate-free, high-solid, three-component epoxy primer engineered for corrosion protection of aircraft metallic structures. Widely used in aviation manufacturing and MRO environments, it delivers strong adhesion to treated aluminium alloys and excellent chemical resistance. Maintenance teams rely on it for durable structural protection, compatibility with polyurethane topcoats, and predictable curing performance under controlled shop conditions.

Key Technical Specs for PRIMER SP350

• Type: Three-component, high-solid epoxy primer (chromate-free)
• Mix Ratio: 100:11 by weight (Base:Hardener) | 8:1 by volume; Thinner 0–10% (0–1V)
• Color: Beige
• Theoretical Coverage: 25 m²/L (1019 sq ft/gal) at 25 µm (1.0 mil) DFT
• Recommended DFT: 15–35 µm (0.6–1.4 mils) | WFT 20–50 µm (0.8–2.0 mils)
• Viscosity (Spray, 20°C / 68°F): 15–25 sec ISO 4 cup (depending on dilution)
• Pot Life: 3 hrs (15–30°C / 59–86°F); 1 hr (30–35°C / 86–95°F)
• Induction Time: None
• VOC: 285 g/L (2.4 lb/gal) undiluted (Base + Hardener)
• Dry to Handle: 6 hrs @ 23°C (73°F); 30–45 min @ 80°C (176°F)
• Fully Cured: 7 days @ 23°C (73°F); 3 hrs @ 60°C (140°F)
• Minimum Cure Before Topcoat: 40°C (104°F) before polyurethane application
• Gloss Level: 20–80 GU at 60°
• Service Temperature (Application): 15–35°C (59–95°F)
• Shelf Life: 12 months (Base/Hardener); 48 months (Thinner) stored 5–35°C (41–95°F)
• Typical Uses: Aircraft aluminium structures, nacelles, landing gear components, fuselage and wing assemblies

Approvals & Specifications

• Qualified to Safran Landing Systems: IFC30-125-06
• Qualified to Safran Nacelles: HMRC0149A
• Qualified to Safran Aircraft Engines: DMR74-130
• Application per aerospace surface preparation standards (Alodine, OAC, OAS, TSA)
• VOC testing per ISO 11890-1 and ASTM D3960

Typical Aircraft MRO / AOG Applications

• Corrosion protection of aluminium alloy structural components
• Landing gear subassemblies and structural supports
• Engine nacelle internal and external metallic parts
• Fuselage frames and wing structural repairs
• Touch-up repairs using small kit formats
• OEM production line priming prior to polyurethane topcoat

Compatibility & Safety Notes

• Compatible with aluminium alloys treated by Alodine 1200 (Cr6), Chromic Acid Anodizing (OAC), Sulfuric Acid Anodizing (OAS), and Tartaric Sulphuric Anodizing (TSA)
• Steel components with cadmium or phosphate require solvent reactivation
• Must be cured minimum 40°C (104°F) prior to polyurethane topcoat application
• Apply using dry, oil-free compressed air
• Use appropriate PPE: gloves, respirator, eye protection
• Refer to Safety Data Sheet (SDS) for full handling and disposal guidance

Packaging & Procurement

• Base: 4 L containers
• Hardener: 0.5 L and 5 L containers
• Thinner: 1 L and 5 L containers
• Touch-Up Kits (TUK): 45 mL (40 mL Base + 5 mL Hardener)
• Store sealed in original packaging between 5–35°C (41–95°F)
• Suitable for OEM production, MRO hangars, and field repair kits

Why PRIMER SP350 is Chosen for AOG / MRO

• Fast curing options for accelerated return-to-service
• Excellent adhesion to aerospace-treated aluminium
• Chromate-free compliance for modern environmental standards
• Reliable pot life for controlled application
• Flexible spray and brush application methods
• Compact touch-up kits ideal for line maintenance

Practical Suggestions for Your Team (AOG Mindset)

• Stock both standard kits and touch-up kits for rapid field response
• Pre-condition materials to 18–25°C (64–77°F) before mixing for optimal consistency
• Use weight-based mixing for precision in maintenance environments
• Ensure oven or IR capability when fast cure turnaround is required
• Train technicians on correct surface reactivation if recoating window is exceeded

Manufacture / Aviation Spec Codes

• Manufacturer: Mapaero
• Product ID: SP350
• Primer System: Base SP350 / Hardener SP350 / Thinner SP350 Plus
• Safran Landing Systems: IFC30-125-06
• Safran Nacelles: HMRC0149A
• Safran Aircraft Engines: DMR74-130

Alternative Names & Descriptions

• SP350 Epoxy Aircraft Primer
• Chromate-Free Aerospace Epoxy Primer
• High-Solid Aluminium Structure Primer
• SP350 Three-Component Primer System
• Aircraft Structural Corrosion Protection Primer