Pre-Treatment Systems

Preparation of the product surface before coating; with few exceptions, products need to be cleaned and prepared for coating; this may be the removal of oil and grease, rust or other contaminants.  It may be needed to provide a key to promote adhesion; it may also be necessary to provide a guaranteed coating performance.  At its simplest pre-treatment may mean wiping the product manually with a solvent; the product may require shot-blasting, or perhaps a chemical conversion coating.  Much depends upon the product material; plastics may require treatment to remove surface tension, as well as oils, moulding release agents etc.  And for metal the choice is also extensive; aluminium for example may need cleaning and etching, whereas ferrous metal will need cleaning and some form of protection to inhibit oxidisation (as a minimum requirement).  Other than shot-blast, most surface treatments are wet, water-based solutions that are either sprayed onto, or the product is dipped into

Pengrave Engineering Ltd, off Delta Way, Bridgtown, Cannock, Staffordshire WS11 0DJ
Tel: 01543 577142 Fax: 01543 577930 Email: sales@pengrave-engineering.co.uk