Release agents must always be used in moulding to enable the part to be removed from the mould or former. PVA is the simple one to use, waxes should only be used by experienced moulders. | This range of products is used for for cutting back the surface of resin or gelcoat to produce a high gloss finish to fibreglass moulds and restore finish of fibreglass products, plastics and painted surfaces. Used by hand or foam polishing heads attached to a low speed machine. |