MPA Mortar part of the Mineral Products Association (MPA)

mpa mortar

quality factory-produced
mortar since 1971



Winter 2021

Winter working warning from MPA Mortar

The need to take special precautions to protect against frost attack in newly laid masonry has been underlined in a warning from MPA Mortars.

If the temperature of newly laid mortar falls below 0°C there is the probability of some form of frost attack. The water in the mortar may freeze and expand therefore forcing the material apart and breaking the bonds.

To increase frost resistance in winter conditions in the hardened state of mortars, MPA Mortar members supply specially modified factory-produced mortars. These include carefully controlled air entrainment.

Click here for a data sheet giving further advice - Factory-produced mortar for use at low and high temperatures.



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MPA Mortar Office

c/o Mineral Products Association,
1st Floor,
297 Euston Road,
London, NW1 3AD

Tel: +44 (0) 20 7963 8000
Fax: +44 (0) 20 7963 8001

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