Plasterers1StopShop
Well-Known Member
Following recent communications and comments placed on the forum regarding the Parex EHI which is a mineral render finish designed for external Wall insulation applications, Parex asked ourselves, Andrew and Ryan Hill of PFT Central in Cheltenham to carry out independent trials using the EHI material as they had not encountered any previous issues with pumping of the material which has been in the market for some 15 years. They asked us to use the same Pragma 12S 9LDdiesel pump and to follow the water content instructions on the bag of 6.9 litres per bag.
We followed the recommended information and the material looked very wet in the pump (certainly far wetter than say a standard one coat render). Though our reaction was to reduce the water content, but we did as instructed and pumped the material over a 30m hose length. The material performed absolutely fine and when applied to the wall was exactly as we would expect the appearance and texture of a pumped material to be.
Because there was no problem with either the pump or the materials, Parex has asked if we can offer this information and advice onto the plasterers forum because as a manufacturer not advertising with the forum they are unable to do so. They have also asked if we could place the attached information that is also available on their web site which provides advice on the use of the EHI material.
We followed the recommended information and the material looked very wet in the pump (certainly far wetter than say a standard one coat render). Though our reaction was to reduce the water content, but we did as instructed and pumped the material over a 30m hose length. The material performed absolutely fine and when applied to the wall was exactly as we would expect the appearance and texture of a pumped material to be.
Because there was no problem with either the pump or the materials, Parex has asked if we can offer this information and advice onto the plasterers forum because as a manufacturer not advertising with the forum they are unable to do so. They have also asked if we could place the attached information that is also available on their web site which provides advice on the use of the EHI material.