Ive tanked bathroom walls aquapanel and hardie using mapei aquadefense no primer as advised by mapei support after 2 days product peeling of the wall in large sheets.
Using aqua defense on a concrete wall.
Instead fill the seams with thinset and cover with mesh tape.
But don t use it over the sealant.
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Cement based thin sets such as mapei s ceramic tile mortar ultraflex 1 porcelain tile mortar and ultraflex 2 can be installed when mapelastic aquadefense turns to a dark green color typically after 30 to 50 minutes.
For common problem areas like coves corners cracks and drains it can be combined with mapei s optional reinforcing fabric or mapeband accessories cove roll and drain flash to provide additional protection.
Mapelastic aquadefense can be flood tested after 12 hours of drying time is iapmo listed for use as a shower pan liner and exceeds ansi a118 10 and ansi.
Apply mapelastic aquadefense liquid 6 15 cm on both sides of the cracks control joints corners and coves using a paintbrush.
Based on that experience i don t use it on shower pans.
Applying aqua defense to a shower stall in massachusetts.
A couple of times i have used it as antifracture on concrete and found a lot of pin holes and shrinkage cracks in it the next day.
Im bit worry that the wall hold 30 kg m2.
For the outside corner it depends.
When to start finishing concrete what finishers know that you don t.
Mapelastic aquadefense dries after about 30 to 50 minutes and is then ready to receive any mapei polymer or epoxy mortar.
When that s dry coat two coats of aquad over the thinset.
Ive rang mapei again to hear that is perfectly normal and tiles won t come off as different type of pressure is applied.
It s great stuff but i do have a few reservations with it.
Hi all have just used aqua defence on plasterboard wall in bathroom didn t see anything on tub about priming so just applied aqua straight onto plasterboard and then tiled but just found on you tube that they say you should prime first i no it s a bit too late but panicking that it will peel off and fetch me tiles off any comments welcome.
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2 apply 2nd coat and let dry.
Cement based mortars designed for large and heavy tile such as mapei s large tile stone mortar ultraflex lft ultraflor and mapei ultralite mortar pro can be installed after mapelastic aquadefense dries overnight.
I ve been using aqua defense for everything for a few years now.
Let dry to a dark green color.
