Chromate-free adhesion promoter – ARCAPREPA 721 for aluminum before painting
Two-component aqueous solution to improve adhesion and corrosion resistance of paints on aluminum. High-performance chromate-free pretreatment with low VOC content for demanding industrial applications.
Description
ARCAPREPA 721 is an adhesion and corrosion resistance promoter, specially formulated for treating aluminum before applying paint or adhesive. Chromate-free, it meets new environmental and safety requirements while offering technical performance comparable to conventional solutions. Its two-component aqueous formulation with low VOC content ensures excellent compatibility with modern paint systems. ARCAPREPA 721 significantly improves coating adhesion and durability, even under severe conditions.
ADVANTAGES
- Chromate-free – compliant with environmental regulations
- Excellent adhesion improvement of paints on aluminum
- Enhances corrosion resistance of coating systems
- Very high-performance pretreatment for painting or bonding
- Simple application: brush, cloth, spraying
- Two-component aqueous formula with low VOC
SECTORS OF ACTIVITY
- Aerospace and space
- Automotive and industrial bodywork
- Metal industry and powder coating
- Surface treatment and building paint
- Naval, railway, and equipment manufacturing industries
FUNCTIONS
- Surface preparation before painting or bonding
- Improved adhesion on bare aluminum
- Long-lasting corrosion protection
COMPATIBLE MATERIALS
- Aluminum and aluminum alloys
- Metal substrates sensitive to oxidation
- Surfaces to be coated with water-based or solvent-based paints
SAFETY / COMPLIANCE / LABELS
Regulatory compliance and safety advantages:
- Chromate-free – not classified as CMR
- Low VOC content – respect for the environment and operator
- Aqueous phase – safe handling
- Compatible with eco-friendly surface treatment approaches
APPLICATION
Application tips for optimal effectiveness:
- Use the product undiluted, without dilution
- Apply by spraying, brush or cloth depending on the surface type
- Allow to act according to technical recommendations (see detailed technical data sheet)
- Drying at room temperature or accelerated depending on the industrial process

