6009 (290-ml-Cartridge)

AkzoNobel Aerowave® 2501 Composite Stopper

Overview

AkzoNobel Aerowave® 2501 is a low-VOC, two-component composite stopper designed for filling surface imperfections prior to aerospace coating applications. Engineered for composite, plastic, metallic, and primed substrates, the product provides a shrinkage-free repair material that cures rapidly at ambient temperatures while remaining flexible after curing. As part of the Aerowave® coating system, it is designed to reduce process times, lower operational costs, and improve finishing quality for aerospace manufacturing and repair operations.

Key Technical Characteristics

• Product Type: Two-component composite stopper / primer surfacer
• Chemistry: Low-VOC epoxy-based filler system
• Mix Ratio (by Volume): 100 parts Aerowave® 2501 : 100 parts Curing Solution 6009
• VOC Content: Maximum 50 g/L (0.4 lb/gal)
• Color: Beige (RAL 1019)
• Pot Life: 30 minutes at 20°C
• Application Temperature: 5°C to 35°C
• Relative Humidity: 25-85%
• Flash Point: >21°C (Aerowave® 2501 and Curing Solution 6009)
• Shelf Life: 36 months (both components)

Core Performance Benefits

• Fast curing at ambient temperatures
• Shrinkage-free formulation for accurate surface repairs
• Remains flexible after curing
• Low VOC emissions
• Low odor formulation improves working conditions
• Compatible with composite, plastic, metallic, and primed substrates
• Low dry film weight helps reduce aircraft operating costs
• Supports reduced process cycle times during manufacturing and repair

Typical Applications

• Composite aircraft structures
• Aircraft fairings and panels
• Surface defect filling
• Repair of pinholes, cracks, and surface imperfections
• Composite manufacturing
• Aerospace MRO operations
• Surface preparation prior to primer and topcoat application
• Aircraft composite refinishing

Material Engineering & Design Features

Aerowave® 2501 utilizes modern resin technology to produce a lightweight, flexible repair material that maintains dimensional stability throughout curing. Unlike conventional fillers, it does not shrink or swell during application, helping preserve repair accuracy and reducing the need for rework.

The product is compatible with numerous aerospace substrates and primer systems including:

• Composite substrates
• Plastic components
• Primed metallic substrates
• Aerowave® 2002
• Aerodur Barrier Primer 37045
• Aviox CF Primer 37124

The product meets:

• Airbus AIMS 04.04.030 (Performance)

Installation & Handling

• Mix equal parts Aerowave® 2501 and Curing Solution 6009 until a uniform color is achieved
• No induction time is required
• Apply using a filling knife or spatula
• Fill flaws, cracks, and holes in a single application where possible
• Allow material to dry completely before sanding
• Sand using P240, followed by P320 and finish with P400 grit
• Clean tools immediately after use with Solvent Cleaning C28/15 or Solvent Cleaning 98068
• Recommended recoating within 72 hours after sanding

Environmental & Compliance Notes

• Low VOC formulation (maximum 50 g/L)
• Store between 5°C and 25°C in original unopened containers
• Short-term exposure (up to 48 hours) to temperatures up to 40°C will not affect shelf life
• Shelf Life:
  • Aerowave® 2501: 36 months
  • Curing Solution 6009: 36 months
• Consult the applicable Safety Data Sheet (SDS) before use
• Intended for professional aerospace applications

Key Advantages for Aerospace Use

• Fast-curing, shrinkage-free repair system for composite structures
• Excellent compatibility with modern aerospace primer systems
• Flexible cured material resists cracking after repair
• Low VOC and low odor support environmentally responsible manufacturing
• Lightweight formulation contributes to reduced aircraft operating costs
• Simple 1:1 mixing ratio with no induction time
• Qualified to Airbus AIMS 04.04.030 performance requirements
• Ideal for OEM production and aircraft maintenance repair operations