China Leading Sheet Moulding Compound(SMC) Supplier

The slurry reservoir dispenses a dosed amount of the specified resin slurry onto a plastic carrier film. The carrier film passes through a chopper, which cuts fibres into the surface. Once these fibres have drifted through the depth of the resin paste, another layer is added on top to sandwich the glass. These sheets are compacted and loaded into a winder for storing the product as it matures. The carrier film is then removed and the material is cut into various shapes. The shape of the charge and the mould are determined according to the desired shape and the charge is then added to the mould. Heat and pressure are applied to the charge and once fully cured, the charge is removed from the mould and becomes the finished product. Fillers can both reduce weight, change physical properties and often increase strength. Challenges in the production process include wetting the filler, which can consist of glass microspheres or neatly aligned fibres rather than randomly chopped fibres; adjusting the mould temperature and pressure to provide the right geometry; and adjusting the chemistry to suit the end use.