Please ensure that you are following the instructions for your specific formulation of adhesive. The most common reasons why contact adhesives do not form a good bond are:
- Surfaces are not clean and dry before applying the adhesive
- Too much or too little adhesive is applied
- Drying time is too short
- Drying time is too long
It’s also useful to know that some semi porous materials may require a priming coat of adhesive to preseal the material and avoid the material absorbing so much adhesive that a bond cannot be formed.