PP core material is made of chopped polypropylene fiber strands in continues punched by needles, it is the main material for fiberglass sandwich mat. It is compatible with Polyester, Vinyl and Epoxy resin and widely used in boat building, wind energy, automotive, sports equipment, flat panels etc, suitable RTM, Vacuum infusion, hand lay-up forming processes. 
 
 Product properties:
No powder or emulsion, quickly wet-out in resins
No certain direction, Good uniformity
Fluffy structure, and easily spring back
Improve efficiency and reduce costs
 
General Data

 
Remarks:
Roll width: Standard width in 1270mm, 2800mm, and other sizes depends on customer’s real needs, available in 200mm to 3300mm.
Packing: PP core material is usually rolled in a paper tube with inner diameter 76mm. The roll is warped with plastic film, then put into carton. Lay the rolls horizontally, and can be loaded on pallets and bulk in container.
Storage: The product should be stored in a cool, water-proof area. It is recommended that the room temperature and humidity be always maintained at 15℃ to 35℃ and 35% to 65% respectively. Please keep the product in its original packaging before being used, avoiding moisture absorption.