Bag Molding Hinterspritzen

This patented process allows virgin or recycled RPs such as PP and PC/ABS to thermally bond with the backing of multilayer PP based fabrics providing good elasticity. This one-step molding technique provides a low cost approach for in-mold fabric lamination that range from simple to complex shapes. 

Resin lamination should not be carried out at a temperature of less than 20C (68F). A catalyzed/promoted resin is heat-sensitive and catalyst levels should be adjusted to varying temperature as recommended by the manufacturer. With resin laminating, where space is limited, mold preparation such as releasing and gelcoating can be done in a tent made of polyethylene film (which can also be used as a warm area for curing resins in cold weather). 

When working with TS resins, hot water, soap, and an eyewash system should always be available. Styrene vapor is heavier than air, so ventilation or extraction equipment should take off vapor from the lowest part of the mold, or the lowest level of the molding area. Air bubbles in a laminate reduce strength and may impair corrosion resistance. To minimize air bubbles, the following are recommended  

Useful materials and equipment include a range of toggle mold clamps such as the following  

As well as the materials and molds, resin lamination of all types needs a broad back-up of equipment for application and materials for cleaning. Many suppliers offer the Ml range and give useM comprehensive advice  

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Bag Molding Hinterspritzen Contact Molding Filament Winding Fabricating RP Tank... 

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