Contact Cement Countertop Laminate. Contact cement, or contact adhesive, is a neoprene rubber adhesive that creates a fast, flexible, permanent bond. If you have any edging on your plastic laminate countertop that's come loose, I would suggest fixing it as soon as possible.
WB contacts operate differently than other contacts, and there is definitely a learning curve. People get a lot of success from using contact cement on countertops in kitchens, as well as in bathrooms. Roll contact cement onto the countertop.
Run a laminate roller back and forth across the countertop to ensure positive cement contact and to move air bubbles out.
Bonds on contact eliminating the need for clamping.
This adhesive is interesting, in that it never fully cures. Because the MDF under laminate countertops gets ruined when it gets wet, you can't install a normal undermount sink. Let it dry to a dry-tacky surface before assembly.