Sika 4a Waterstop accelerator 5Ltr

Makes mortar set in seconds! A liquid additive which when mixed with cement results in mortar setting in seconds. Ideal for making a ‘plug’ of mortar to stop leaks in basements before putting a waterproof slurry or lining system in front. Fast set additive for cement. Mix in a gloved hand with cement and push firmly into a weeping water hole to stop the water. Reminiscent of the boy with his finger in the dyke, this really does the job! Trade / DIY benefits Makes concrete super fast drying Trade / DIY applications Concrete leak fixer Concrete fast setting additive Basement leak stopper Cellar leak stopper How to Step-by-Step Mix in a gloved hand with cement. Push firmly into a weeping water hole to stop the water.