Rexco Mold Release Products
Rexco Mold Release Products: Over Seven Decades of Composites Expertise
When it comes to reliable mold release chemistry, few names carry the weight of experience that Rexco does. Mold release products are a cornerstone of composite manufacturing — and Rexco has been engineering them since 1953. What started as a small regional operation in Southern California has grown into a globally recognized authority, with products exported to over forty countries and a primary manufacturing facility in Conyers, Georgia.
Rexco's longevity is no accident. As a third-generation, family-owned company, the brand has stayed focused on a straightforward mission: produce simple, effective, and economical mold release solutions for professionals who depend on consistent results. That dedication has made Rexco a go-to partner for manufacturers working with fiberglass, cultured marble, cast polymer, and polymer concrete.
The Rexco Product Line: PARTALL®, MARBALEASE®, and FORMULA FIVE®
Rexco's mold release catalog is anchored by three well-established brand lines, each tailored to specific composites manufacturing needs:
- PARTALL® — Rexco's flagship line, best known for its polyvinyl alcohol (PVA) parting films. Rexco is widely recognized as the leading North American manufacturer of PVA parting film-forming barrier solutions for thermoset composites. These films are solvent-resistant yet water-soluble, and the line includes both traditional alcohol-based formulas for fast drying and newer, environmentally friendly non-hazardous options. The PARTALL Hi-Temp Mold Release Wax is a standout product, formulated for use with most thermoset resins at ambient or elevated cure temperatures — particularly useful where standard silicone waxes might interfere with post-finishing operations.
- FORMULA FIVE® — A silicone-based paste wax mold release agent that blends carnauba wax with modern polymers and special hydrocarbon waxes. Notably, Formula Five boasts the lowest silicone content in its class, making it a smart choice for fiberglass component manufacturers who want multi-cycle releases without silicone contamination concerns. It is specifically designed as part of a simplified multi-cycle release method for gel-coated surfaces.
- MARBALEASE® — Targeted at manufacturers of cultured marble and cast polymer products, this line addresses the specific demolding challenges of those materials.
Why Professionals Choose Rexco for Mold Release
The composites industry demands products that perform predictably across thousands of production cycles. Rexco's mold release waxes, buffing compounds, and PVA parting films are designed around that reality — minimizing demolding failures, protecting expensive tooling, and supporting clean, repeatable part release. Whether you are initializing a new mold, working with intricate geometries, or seeking a wax system that won't interfere with paint adhesion, Rexco has a formulation built for the task.
The full range of Rexco mold release products available here spans PVA parting films, paste wax mold releases, semi-permanent release agents, and mold sealing and cleaning compounds — giving fabricators everything they need to maintain a productive, high-quality molding operation from setup to final part.