SILRES® WH, a novel silicone resin emulsion for wood protection coatings, possesses hydrophobic properties that reliably protect wood outdoors against wet and damp conditions. The product is flexible enough to adhere strongly to wood surfaces and imbues the water-repellent properties typical of silicones. Weathering tests show that this product still protects impregnated wood against moisture and damp conditions after 17 years.