Internal Release
Granudan’s internal release agents for composite molds are mixed directly into resin systems. This method improves resin flow and reduces the need for external release. Internal release simplifies processing, lowers material use, and delivers consistent results. Additionally, parts can often be painted or bonded without extra cleaning. These agents work in polyester and epoxy resins, making them ideal for pultrusion, injection molding, and vacuum processes. By using internal release systems, manufacturers save time, reduce waste, and extend mold life.
Chemlease IC-60 is an internal release agent and lubricant for non-gel-coated polyester resins. It improves resin flow, reduces external release needs, and delivers clean, paint-ready parts.
Chemlease® IM 9101 is primarily used for pultrusion of composite parts with polyester resins. This product is designed to reduce pull force, resulting in improved line speed and reduced die wear. Chemlease® IM 9101 also imparts better flow properties to enable sufficient impregnation of fibers, fillers, and other additives. Pultruded parts made with Chemlease® IM 9101 are generally able to be painted and bonded without the post cleaning operations usually required when using conventional external release agents.
Chemlease® IM 9102 is our second version of internal mold release primarily used for pultrusion of composite parts with unique properties for epoxy. This product is designed to reduce pull force, resulting in improved line speed and reduced die wear. Chemlease® IM 9102 also imparts better flow properties to enable sufficient impregnation of fibers, fillers, and other additives. Pultruded parts made with Chemlease® IM 9102 are generally able to be painted and bonded without the post cleaning operations usually required when using conventional external release agents.