EVONIK CORPORATION › PROTECTOSIL® WS 670 PROTECTOSIL® WS 670 $0.00 PROTECTOSIL® WS 670 is an aqueous emulsion based on organofunctional silanes for the water repellent impregnation of porous, mineral substrates. Quantity: Add To Cart Added! PROTECTOSIL® WS 670 is an aqueous emulsion based on organofunctional silanes for the water repellent impregnation of porous, mineral substrates.
