Surface Preparation of Materials

Many techniques exist for surface preparation, which depend on the materials to be bonded. We mention those which are most commonly used  

Preparation of substrates Planing, cleaning Abrading, chemical surface treatment Conditioning of materials before bonding 

Preparation of the adhesive Addition of fillers Dilution and adjustment of viscosity Metering and mixing of the two components 

Coating/dispensing Brush, trowel Spraying, extrusion Roll application (manual or automatic) Hot melt equipment Stencil, dip coating Film adhesives Pressure sensitive adhesives Preformed adhesives and sealants (in solid form) 

Drying, waiting time, open time Waiting for evaporation of solvents or water 

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