What equipment is required to apply Aquadry?

Using a brush or roller is the easiest method of application, however, Aquadry masonry water-repellent cream can also be applied by airless spray for larger areas.

To discuss suitable airless spray equipment for applying Aquadry, please call our technical department on 0115 946 0060. Alternatively, fill in the enquiry form on this page.

Can Aquadry be used for waterproofing stone?

Aquadry masonry protection cream can be used to waterproof most types of stone used for construction with the exception of limestone.

Specific testing has been carried out to EN ISO15148:2002 (E) demonstrating a high degree of effectiveness on all stones tested (Blaxter Sandstone, Sheffield Sandstone, and York Stone) with the exception of limestone (Portland Stone).

Broadly speaking, Aquadry is effective when used on masonry substrates that contain a significant proportion of silicon dioxide (sand) – e.g. brick, mortar, sandstone, granite, etc… This is because the active ingredients in Aquadry form an extremely strong covalent bond with silicon dioxide.

For advice on the suitability of Aquadry for waterproofing a particular type of stone, please contact our technical department on 0115 946 0060 or fill in the enquiry form on this page.

Can Aquadry prevent spalling/frost damage?

Aquadry has been shown to be useful in improving the frost resistance of brickwork. This improvement results from the exclusion of water from the brickwork by the application of Aquadry.

The most common cause of spalling is frost damage caused by water in the pores of the bricks expanding when it freezes. Aquadry prevents this from occurring by preventing water from entering the pore structure of the brick whilst allowing any existing moisture to evaporate.

Can I use Aquadry on roughcast or pebbledash?

Aquadry masonry water repellent cream provides an excellent breathable waterproofing solution for render, roughcast, or pebbledash. As with all masonry surfaces, it should be ensured that all cracks have been filled prior to the application of Aquadry.

Is Aquadry suitable for DIY application?

Aquadry masonry water repellent cream is simple to apply to walls using a brush or roller so is suitable for DIY application.

However, it is advisable to employ the services of a professional contractor when dealing with severe rain penetration problems – particularly in situations where masonry is in poor condition and in need of repair (e.g. re-pointing, crack repair, etc…) Please call us on 0115 946 0060 or fill in the enquiry form on this page for details of specialist waterproofing companies in your area.

Can Aquadry be used to waterproof painted walls?

It is always beneficial to remove existing paint for best results, however, Aquadry can be applied over existing water-based microporous masonry paint. If you are unsure, we recommend you remove existing paint.

Does Aquadry change the appearance of walls?

Aquadry has been formulated to be a colourless water-repellent for brick, stone and concrete. It allows porous masonry to be waterproofed whilst allowing it to retain its natural appearance and allowing it to continue to “breathe.”

Although some darkening of the masonry substrate may occur after Aquadry has been applied, this will fade over time and the masonry will revert to its original appearance.

Because Aquadry achieves its water repellency by lining the pores of the masonry rather than by coating the masonry surface it will not leave the glossy sheen associated with some “masonry sealant” products.

A small, representative, inconspicuous area should always be tested prior full application with any such product.

Can Aquadry reduce moss growth on walls?

Applying Aquadry masonry water repellent cream to porous substrates (e.g. bricks, stone, paving slabs, roof tiles, etc…) will reduce the moisture content of the substrate. This will result in biological growth (moss, algae etc…) being inhibited as the moss or algae will no longer be able to draw moisture that it requires to grow from the substrate on which it is growing.

Some types of moss and algae are able to draw moisture from the air and are therefore able to continue growing even when the substrate on which they are growing has been waterproofed with Aquadry. For this reason we recommend that Biokil Crown Biocidal Cleanser Concentrate is applied to the substrate before application of Aquadry – Please call our technical department on 0115 946 0060 or fill in the enquiry form on this page for details.

Does Aquadry allow the masonry to “breathe”?

Aquadry waterproofs masonry by lining the pores of the treated masonry material rather than blocking them. For this reason water is still able to evaporate through the wall in the form of vapour – i.e. the masonry is able to breathe.

Can Aquadry be applied to damp walls?

To allow optimal penetration, Aquadry water-repellent cream should be applied to dry walls. As a guide at least 24 hours should be left before application of Aquadry after a period of heavy rain (longer during cold periods – i.e. ambient temperature below 15°C). After short periods of light rain leave at least 2 hours before applying Aquadry (longer during cold periods).