Koppers Royale is a two stage treatment process which incorporates two independent Koppers systems to create a stabilised pre-finished product with enhanced performance properties for use in various external applications, reducing the need for hand application of a coating and costly short term maintenance.
The product is suitable for application within the timber cladding, fencing and pre-stain decorative timber market sectors.
Stage 1: The timber is preserved with a Koppers copper based preservative system.
Stage 2: The timber is placed into a stabilizing oil processing plant and subjected to a controlled combination of vacuum and temperature to initiate moisture removal. The heated blend of stabilizing oil is introduced under vacuum into the vessel and this accelerates the moisture removal. The removed moisture is replaced with the Koppers stabilizing oil. A final vacuum is applied to remove excess oil and the Koppers Royale timber is allowed to dry.