Print-through protection - 8/1/2007

Kaizen Technologies (Montreal, Quebec, Canada) and Sogel Inc. (Longueuil, Quebec, Canada) have jointly developed a product called PrintShield, which reportedly solves the print-through and surface-profiling problems that molders encounter in closed molding processes, such as resin transfer molding (RTM) and

Kaizen Technologies (Montreal, Quebec, Canada) and Sogel Inc. (Longueuil, Quebec, Canada) have jointly developed a product called PrintShield, which reportedly solves the print-through and surface-profiling problems that molders encounter in closed molding processes, such as resin transfer molding (RTM) and vacuum-assisted resin transfer molding (VARTM). PrintShield is a protective layer that is applied over the cured gel coat before the reinforcement is placed. It reportedly requires no special equipment and can be applied with a either standard gel coater or a brush. The product, say the manufacturers, is a low-shrink, nonbrittle material with an overlap time of more than two weeks, allowing for its use in very large structures without adhesion problems. The material comes in four grades: Marine Vinylester, designed for optimum osmotic resistance; Marine Polyester, for general-purpose marine parts; Standard Polyester, for transportation or industrial parts; and Tooling Polyester, for Class A finish molds.