Knauf Spray Plaster

As an internal wall finish the project team have carried out a method of preparing the internal walls for finish, which was the Knauf Airless Finish which is a highly efficient spray applied alternative to traditional plaster for finishing walls and ceilings.

From a CO2 perspective, transport costs will be similar to traditional products. This is because the airless plaster pallets cannot be stacked so 24-26 is the maximum that can be delivered on a vehicle. Whereas, the powder gypsum products can be and therefore more material can be delivered on one truck, subject to access etc. However, manufacturing use of energy per ton are less, 5kw of energy are saved per ton of material in the manufacturing process along with water used being filtered and recycled.

Onsite, the empty bags are recycled plastic and can be recycled in the plastics skip, less than 1% material waste is seen and this can go to landfill as this is not a gypsum based product. Saving significant cost of disposal. Gypsum is typically 15-17%.

Wastage is also reduced as excess product can be skimmed from surfaces and recycled back into the machine’s hopper for re-use.

Finally, we are all aware of dust control requirements on site, and whilst there is an element of sanding with these products they contain only trace silicate, well below HSE recommended levels and certainly much lower than gypsum based products. There are also no chemical primers or bonding agents.

To find out more, click the link below.

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Entry submitted by Morgan Sindall

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