Everbuild Silicone 825 is a versatile sealant with +/- 35% flexibility and a neutral cure. It conforms to ISO 11600 Class: F25LM and G25LM. Suitable for both interior and exterior use, it is typically applied for expansion joints in stone, brick, concrete, and composite panels. It is also ideal for perimeter pointing on window and door frames, weatherproof sealing in most external applications, and for construction and dilation joints where stress does not occur until fully cured.