Akzonobel - Formerly Mapaero THINNER FRSL (5-Ltr)

TOPCOAT FRS40 METALLIC

Overview

AkzoNobel TOPCOAT FRS40 METALLIC is a three-component solvent-borne polyurethane metallic effect topcoat developed for aircraft interior applications. It provides durable decorative metallic finishes and is designed for use over FRS30 or FR4-45 surfacers. The coating can also be protected with 1500-FR or 1500-HD clear varnishes for enhanced appearance and durability.

Key Technical Specs

• Product Type: Three-component polyurethane metallic aircraft interior topcoat
• Components: FRS40 Base / FRS Hardener / FRSL, P2, P2-2 Fast or P6 Fast Thinners
• Mix Ratio by Weight: 100 : 10 : 10–20 (Base : Hardener : Thinner)
• Recommended Dry Film Thickness: 30–50 µm (1.2–2 mils)
• VOC Content: 450–650 g/L (undiluted base and hardener)
• Dry Film Weight: 1.5–2
• Finish: Matt to Semi-Gloss metallic
• Colours: Custom metallic colours available

Approvals & Specifications

• Qualified to C&D Zodiac CDM240-00
• Qualified to C&D Zodiac CDM240-01
• Qualified Product List (QPL) available through AkzoNobel Aerospace

Typical Applications

• Aircraft interior decorative metallic finishes
• Cabin sidewalls and interior panels
• Phenolic composite components
• Plastic interior components (excluding polycarbonate)
• Prepared aluminium interior structures
• Commercial aircraft cabin refurbishment and OEM production

Surface Preparation

• Recommended over FRS30 or FR4-45 surfacer systems
• Composite substrates should be sanded using P240–P400 abrasive paper
• Plastic substrates should be sanded using P240–P400 abrasive paper
• Clean prepared surfaces using isopropyl alcohol or Essence F
• For aluminium, apply over approved surface treatment and F69 epoxy primer
• F69 primer should cure for at least 1 hour at 60°C before applying FRS40
• Before applying varnish, allow FRS40 Metallic to dry for 1 hour at room temperature

Mixing & Application

• Mix Ratio by Weight: Base 100 / Hardener 10 / Thinner 10–20
• Recommended storage before mixing: 18°C to 25°C for 24 hours
• Homogenise base using gyroscopic or mechanical mixer for 10 minutes
• Verify there is no pigment settling before use
• Allow 30 minutes after homogenisation for viscosity stabilisation
• Mix by weight for best accuracy
• Application Temperature: 15°C to 35°C
• Recommended filter size: 150–190 µm
• Induction Time: Not applicable

Application Equipment

• Conventional spray gun
• Nozzle size: 1.2 mm–1.6 mm
• Dynamic air pressure: 1.5–3 bar
• Use clean, dry, oil-free compressed air

Spray Parameters

• AFNOR Cup #4: 20–30 seconds
• Ford Cup #4: 18–28 seconds
• Relative Humidity: 20%–80%
• Apply one crossed coat
• Flash off for 5–10 minutes
• Apply second crossed coat
• Repeat until required metallic effect and film thickness are achieved

Pot Life

• Thinner FRSL: 6 hours
• Thinner P2: 6 hours
• Thinner P2-2 Fast: 3 hours
• Thinner P6 Fast: 1 hour 30 minutes
• Specific metallic colours may have shorter pot lives depending on thinner selection

Drying & Curing

• Dust Free: 15 minutes (P2 or P2-2 Fast)
• Dry to Handle: 8 hours (P2) or 1 hour 30 minutes (P2-2 Fast)
• Dry to Tape: 2–4 hours (P2-2 Fast)
• Recoatable at 23°C: 1–24 hours
• Recoatable at 40°C: 30 minutes–8 hours
• Recoatable at 60°C: 15 minutes–8 hours
• Full Cure: 7 days at 23°C
• Full Cure: 3 days at 40°C
• Full Cure: 12 hours at 60°C
• Allow 45–60 minutes flash-off before forced curing

Physical Properties

• Theoretical Coverage: Dependent on colour
• Flash Point (Base): 24°C
• Flash Point (Hardener): 37°C
• Flash Point (FRSL): 29°C
• Flash Point (P2): 32°C
• Flash Point (P2-2 Fast): 41°C
• Flash Point (P6 Fast): 122°C
• Finish: Matt to Semi-Gloss metallic

Packaging & Storage

• Store between 5°C and 35°C in unopened original containers
• FRS40 Base Shelf Life: 36 months
• FRS Hardener Shelf Life: 24 months
• FRSL Thinner Shelf Life: 48 months
• P2 Thinner Shelf Life: 48 months
• P2-2 Fast Shelf Life: 48 months
• P6 Fast Shelf Life: 48 months

Why This Product is Chosen for AOG / MRO

• Produces premium metallic aircraft interior finishes
• Compatible with multiple approved primer and surfacer systems
• Multiple thinner options allow optimisation for environmental conditions
• Suitable for both OEM production and cabin refurbishment
• Can be clear coated for additional durability and appearance

Practical Suggestions for Your Team (AOG Mindset)

• Always thoroughly homogenise metallic pigments before mixing
• Allow viscosity to stabilise before spraying
• Use the recommended filter to prevent metallic contamination
• Select thinner based on drying requirements and colour recommendations
• Prepare spray-out panels when applying new metallic colours
• Maintain consistent spray technique to ensure even metallic orientation
• Observe flash-off times before clear coating or force curing
• Use clean, dry, oil-free compressed air throughout application

Manufacturer / Aviation Spec Codes

• Product Name: TOPCOAT FRS40 METALLIC
• Product Type: Three-component polyurethane metallic aircraft interior topcoat
• Recommended Surfacers: FRS30, FR4-45
• Compatible Clear Coats: 1500-FR, 1500-HD
• Specifications: C&D Zodiac CDM240-00, CDM240-01
• Manufacturer: AkzoNobel Aerospace Coatings