Contact Adhesive
What are Contact Adhesives?
Contact adhesives are adhesives that are applied to both parts and after a contact time form an immediate, strong bond through simple contact and pressure. These adhesives enable fast and permanent bonding without fixation or pressing time.
Properties of Contact Adhesives
- Application on both bonding surfaces required
- Immediate initial strength after contact
- High peel strength and flexibility
- No repositioning possible after contact
- Temperature and aging resistant
- Various viscosities for different application methods
Curing Mechanism
- Physical curing through solvent evaporation
- Defined flash-off times before joining
- Immediate force transmission upon contact
- Cohesive bonding in the adhesive layer
- No chemical crosslinking required
Applications
- Shoe industry: Sole and upper material bonding
- Automotive Interior: Upholstery and insulation bonding
- Furniture industry: Edge banding and veneer bonding
- Leather goods industry: Bag and belt manufacturing
Material Compatibility
- Elastomers: Excellent adhesion on rubber
- Leather and textiles: Natural and synthetic materials
- Foams: PU and other polymer foams
- Plastics: Various thermoplastic materials
Application Methods
- Brush application: Manual application for small areas
- Roller application: Uniform coating of large areas
- Dispensing Valves: Precise application for industrial manufacturing
- Spray application: Area-wide coating of complex geometries
System Variants
- Solvent-based systems: High immediate strength
- Water-based formulations: More environmentally friendly alternative
- Reactive contact adhesives: Additional heat curing possible
- Solvent-free systems: Reduced emissions
DELO Adhesive Solutions
- Contact adhesives for various material combinations
- Shelf life-stable formulations
- Application technical consulting for optimal process design
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