Changzhou Greencradleland Macromolecule Materials Co., Ltd.
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PVA release film is a water and alcohol-based polyvinyl alcohol (PVA) coating comprised of water-soluble, film forming materials. The dry PVA film is resistant to the solvents in the resin system used to make composites parts but is soluble in water. It is particularly recommended as a parting agent for separation between polyester or epoxy resins and various mold surfaces but may be used with most thermoset resins. PVA release film is not recommended for use with resin or substrates containing water or giving off water during cure. PVA release film parts easily from mold surface and is readily dissolved from molded parts and spray equipment with water. For most composite casting processes PVA release film is used over wax or other mold release agents.
Advantage
1. good detachment performance, easy to produce hair germ after stripping, saving polishing time.
2. with high softness and smoothness, the PVOH film can fit the mold better, and the film removal quality is higher.
3. good heat resistance: up to 190 degrees.
4. good mechanical properties: high tensile strength, high elongation at break.
5. suitable for continuous production with high production efficiency.
6. safe, non-toxic, environmentally friendly and completely biodegradable