Stopgap 850 - Smoothing Compound

Pour the mixed material onto the prepared subfloor and allow to flow and attain a smooth finish. Minimal work with a smoothing trowel is required. The use of a spiked roller will help eliminate entrapped air and smooth out flow lines to give a more uniform surface appearance. The mixed material should be applied at a thickness between 5mm to 15mm. For best results, an overall thickness of at least 5mm should be maintained when used as an exterior resurfacing compound.

STOPGAP 850 can also be applied to slight gradients. To ensure the consistency is suitable and reduce the flow properties, we recommend reducing the water content to 4.0 litres to produce a stiffer consistency. Further

reductions can be made if required e.g. at increased thicknesses, but we would recommend no less than 3.75 litres of water per 25kg unit.

STOPGAP 850 is self-smoothing, but should any imperfections remain they can be removed by rubbing with a carborundum stone when the compound will accept foot traffic - typically 2 hours after application at 20°C. This time will be extended with reduced temperature i.e. approximately 4 hours at 10°C.