Selleys Storm Sealant with Sil-X technology delivers an immediate waterproof seal on any building material, wet or dry, indoors or outdoors. It can even be applied in the rain to stop leaks in an instant. Perfect for interior and exterior sealing tasks. - Can be applied to wet or dry material - Good adhesion on any material even when applied in the rain - Excellent UV and weather resistance - Suitable for interior and exterior use - Long lasting flexibility - Easily paintable with 2 coats of water-based paints - Low odour