Multibond SMX25 is a high quality, low modulus, single component, permanently highly flexible, joint sealant with higher viscosity. Perfect for internal and external applications. Based on SMX Polymer SMX25 has a Shore A hardness of 25 and can accommodate movement of 25%. SMX25 has excellent UV resistance, elasticity and can be sanded and painted with most types of paint. Once cured forms a strong, flexible, waterproof seal and bonds to the widest range of substrates. SMX25 can be used for damp and wet surfaces. Features and Benefits Low modulus Higher viscosity Highly flexible Internal and external UV resistant Applications Multibond SMX25 Flex and Seal is ideal for a wide range of sealing applications in construction and industrial including.. Expansion joints Masonry and precast concrete joints For sanitary, bathroom and kitchen areas (resists mould growth) For walls and perimeter joints For lap joints in roofing, guttering and cladding, For air conditioning ducting, For caravan, bus and automotive use For window and door frames.