

Sika Accelerator is a chloride free liquid admixture for set acceleration and rapid hardening of cement based mortar, concrete, screeding and render. Also provides frost protection in the wet mortar during the setting period; even in sub-zero temperatures (down to –8°C).
May also be used neat with cement as a plugging aid. Non-corrosive to metals so may be used with brick ties.
Features and Benefits
Sika Accelerator is a chloride free liquid admixture for set acceleration and rapid hardening of cement based mortar, concrete, screeding and render. Also provides frost protection in the wet mortar during the setting period; even in sub-zero temperatures (down to –8°C). May also be used neat with cement as a plugging aid. Sika Accelerator is non-corrosive to metals so may be used with brick ties. Conforms to EN934-2 Table 7.
Benefits
Areas For Use
Limitations
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
![]() | Question:
Can this be used in screed for underfloor heating? What is the curing time in well ventilated 5-10 degree temps? |
Answer from Rawlins’ Technical Team:
This product can be used to aid the rapid hardening of cement based mortar, concrete, screeding and render. We would recommend consulting the technical data sheet for the screed this is to be used with regarding compatibility and application. At 20°C the addition of 5ltr of Sika Accelerator to 50kg will produce an approximate setting time of 2 hours. | |