Bonding to low energy plastic surfaces can be a challenge. Doing so with waterbased adhesives can make that challenge even more difficult. We’ve all experienced the benefits to a treated plastic surface for most plastic films be it polyethylene, polypropylene, nylon, polyester or other, however, what happens when in-line treatment or aged pre-treated surfaces come in to play. The use of superior (and more costly) polymeric backbones can help and the use adhesion promoters or co-solvents can enhance the waterbased products and boost the performance to acceptable adhesion levels.
I would be interested in hearing from you on the issues you may have encountered and the solutions used to solve the challenge.
