FAQ’s

A couple of questions?

Q. What is the difference between the brush version and the liquid one?
A. The Brush version is reinforced with micro fibres the liquid version has no fibres and is slightly less viscous (thick)

Q. Can I apply Blowerproof myself or do I need a professional?
A. Blowerproof Brush (which comes in a variety of packaging and sizes) is designed for use by builders, self builders and competent DIY’ers. The spray applied version can be applied to smaller areas with a roller…however for larger areas we recommend our approved spray applicator who provides a warrantied installation service.

Q. How do I apply Blowerproof ?
A. Follow the instructions in the application guide, basically it is a simple brush-on product similar to using a very thick paint. Use a synthetic bristle brush. For window surrounds, awkward or tricky places, penetrations and gaps locate using the cartridge version and then finish with a brush.

Q. Why is Blowerproof described as blue/black?
A. The colour of Blowerproof is a pale blue, when exposed to air the curing process turns it black, this means you know when a full cure (seal) has been reached. When applying in two coats, for example on concrete blocks, apply the second coat when the first is black that way you avoid the chance of ‘brushing off’ the first coat but importantly its easy to see where you have already painted on the second coat – it will be blue.

Q. Are there any other colours?
A. Yes there is a white version specifically used where the topcoat will be plaster and a the black would show through.

Q. Do I need a primer?
A. No, for most construction applications no primer is needed excpet in some very unusual circumstances such as application to virgin plasterboard and where the substrate is weak or friable.

Q. Can I use Blowerproof on an outside wall?
A. Yes, On mainland Europe Blowerproof is most commonly used on the outside of the inner leaf, this offers considerable advantages. Rapid application, removal of internal detailing issues, freeing up trades to continue working internally, limiting potential damage or breaching the airtight layer. Insulation is mechanically fixed post installation with no loss of airtightness.

Q. Can I use Blowerproof behind dot and dab?
A. Yes, Blowerproof has BBA certification for use behind internal linings.

Q. Can I use Blowerproof to seal gaps ?
A. Yes, especially by using the cartridge, use a standard skeleton gun to locate a bead of Blowerproof in the gap, no more than 5mm deep, a second bead can be applied when it has cured. For larger gaps >5mm use Bloweroproof rapid setting Gap Filling Mortar.

Q. Can I use Blowerproof to joint boards?
A. Yes, apply as a bead and push the boards together, ensure a minimum of 2mm is left for the Blowerproof, clean down the board face with a scraper or spatula.

Q. Is Blowerproof a radon barrier?
A. Yes, Blowerproof has BBA certification for use as a radon barrier.

Q. What can you put over the applied product?
A. Pretty much anything from paint to plaster, render or dry lining

Q. How do I know the product will work?
A. Years of testing and use throughout Europe plus full BBA and Passive Component certification mean absolute peace of mind

Q. Where can I buy Blowerproof?
A. Blowerproof is sold by all good builders merchants or you can buy online on this website.