Is there any advantage to acid free resins?
A. Since some people have allergic reactions to resins containing acid, resins that contain no acid allow them to continue to offer windshield repair to their customers. However, acrylic acid has been proven to be an ingredient which improves adhesive strength and is possibly the best known adhesive for glass! All but one of the resins featured in the Liquid Resins International, Ltd. catalog contain a small percentage of acrylic acid to ensure the adhesive strength. It should be noted that most people have a certain amount of tolerance to the chemicals that make up resin and have no noticeable side affects, however, Liquid Resins International, Ltd. does offer “Protect II” (a skin protectant) for preventive maintenance.