Sika FastFix All Weather | Fast Fix Jointing Compound | 15kg Charcoal Sika FastFix All Weather is a self-setting paving jointing compound that provides the ideal solution to perfect pointing on paving, paths and patios. With a unique formula containing Active Resin Technology for advanced durability it is ready to use with no mixing required, easy to apply in all weather conditions; even in the rain and won’t shrink or crack over time. Suitable for use on all joints from just 20mm deep, Sika FastFix can be used for a range of applications including footpaths, stone setts, cobbles and Indian sandstone paving slabs. Once opened it can be stored in water and reused to reduce waste.