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

1. Mix in a gloved hand with cement.
2. Push firmly into a weeping water hole to stop the water.