A preservative skin for timber allows for the use of up to 70% of waste mineral oil combined with oxidative drying vegetable oil derivatives and oil modified synthetic resins such as alkyds to produce a binder vehicle with both penetrating and film forming properties. The composition is a low volatile organic compound and can be either solvent borne or emulsified in aqueous media. The skin may further be combined with metallic driers, biocides, rheological agents, cosolvents, water repellent additives and light fast pigments to formulate a range of coloured, high solids, low VOC timber preservative stains These preservative stains range from translucent to opaque and are suitable for use on open grained, durable and non-durable timber, to be applied by pressure, vacuum, dipping or traditional spraying or brushing techniques.
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