Polyurethane / Internal Mold Releases

Internal mold releases for polyurethane are typically used at addition rates of 1% -2% on system weight; however, certain processes (like pultrusion,), or high filler loadings may necessitate higher addition levels. For best results, pre-production evaluations should be conducted. Internal mold releases are typically added to polyol, or the less reactive system component.

These are only a few of the many products AXEL offers. Please contact us for other options or special requirements.

Download the brochure: Solutions for Polyurethanes

Product Name Description Application
MoldWiz® INT-120IMC Internal release for in-mold coatings PU and polyureas. For use on all types of molds. When used on RTV molds, it acts as a protective barrier coat greatly extending the life of the molds. Does not contain any silicones or waxes and will not interfere with any secondary operations such as decorating, bonding, plating, etc. It is not necessary to wash molds between applications. Silicone free.
MoldWiz® INT-1681/OG Optical grade release for cast PU for protective eyewear.

Synergistic blend of organic fatty acids, esters, amines and wetting agents.

Used for aliphatic and cycloaliphatic isocyanates for protective eye wear. Process aid additive and mold release with anti-static properties incorporated directly into the resin to eliminate the need for an external mold release agent.
MoldWiz® INT-1948MCH For aromatic polyurethane pultrusion. Process aid additive designed specifically for pultrusion of polyurethane resins.
MoldWiz® INT-1960MCH For aliphatic polyurethane pultrusion. Process aid additive designed specifically for pultrusion of polyurethane resins.
MoldWiz® INT-1968RAC For aromatic and some aliphatic polyurethane pultrusion. Synergistic blend of modified polymers, organic fatty acids, esters, waxes and amines. Process aid additive designed specifically for pultrusion of polyurethane resins.
MoldWiz® INT-1940RTM Release additive for RTM, infusion, or other closed-molded PU processes. Synergistic blend of organic fatty acids and esters. Process aid additive designed specifically for polyurethane molding, such as: RTM, infusion, pultrusion, or casting.
MoldWiz® INT-1944NRR Designed to have minimum effect on resin gel/cure times. Synergistic blend of organic fatty acids and esters. Process aid additive primarily for providing internal release. Processes include, RTM, infusion, pultrusion, or casting.