Sikaflex-953 L30 is a 2-component Silane Terminated Polymer (STP) assembly adhesive which cures by chemical reaction of the two components. The L30 version is designed for bonding large components where a longer open time is required. Owing to its good weathering resistance and gap-filling performance it can also be used for exterior sealing joints. It is also very suitable where pumping over a long distance is required. Sikaflex-953 L30 is suitable for bonding large components exposed to dynamic stress and where the attainment of early strength is required. Common substrates are metals, particularly aluminum (including anodized), steel (including phosphated, chromated, galvanized), metal primers and paint coatings (2-part systems), ceramic materials and plastics.