Greengates Builders Merchants

Optimix Accelerator And Frostproofer Available From Greengates Builders Merchants Accrington, Lancashire


Accelerator & Frostproofer is a liquid additive formulated to accelerate setting and hardening times of mortar, concretes, screeds and rendering to provide frost protection during the setting period. Effective even in sub-zero temperatures(down to –8°C) and can also be used in normal temperatures where a rapid set is required and as a plugging admixture. Frostproofer is non-corrosive to metals so may be used with brick ties.



Faster finishing times even in cold weather.

Provides frost protection down to -8oC in wet mortar.

Chloride free non corrosive formula.

Optimises mould usage.   


Areas For Use


Floor screeds

External/­Internal cement based rendering

Concrete (not structural)

Suitable for use as an emergency repair plugging aid when mixed neat with cement.



All materials used must be free from ice and the temperature of the mix prior to placing must not be less than 4°C.

AS AN ACCELERATOR: Add to gauging water at an addition rate of 2.5 to 5 litres per 50kg cement depending on the degree of acceleration required. Note: remember to reduce required quantity of water accordingly.

AS A FROSTPROOFER: Add to gauging water at an addition rate of use 2.5ltrs/50kg cement for protection down to –4°C and 5ltrs/50kg cement for protection down to –8°C, again, reducing required quantity of water accordingly.

AS A PLUGGING AID: Mix neat with fresh cement and place immediately.


So Come Along Today To Our Whalley Road Yard

And Collect Your Frostproofer From Everbuild



Greengates Builders Merchants delivering to the whole of Lancashire including: Accrington, Blackburn, Burnley, Clitheroe, Darwen, Great Harwood, Haslingden, Padiham and Pendle.


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