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Applying BAL WP1 to Knauf Aquapanel
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# 1
Neil_S
Old 16-01-2007, 9:39 AM
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Default Applying BAL WP1 to Knauf Aquapanel

I've read a few threads about the WP1 Shower Tanking kit and I want to use it when I refit my bathroom next month.

I intend on using Knauf Aquapanel, tank and then apply tiles.

I have been reading the Bal data sheet...

http://194.223.92.131/pdf/Technical%...ing_System.pdf

And this suggests that for tile backer board you need to

"Apply a skim coat of a BAL cement-based adhesive modified with BAL-ADMIX AD1, prior to tanking. For wall areas BAL-GRIP may be used. Allow adhesive to dry."

I am slightly disappointed as I thought the kit would contain everything I required.

I guess I should follow what the data sheet tells me, I am interested to understand if anybody has just used the primer and WP1 on Aquapanel without doing the step in the data sheet?
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# 2
BobProperty
Old 16-01-2007, 9:03 PM
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Have a look at this:
http://www.trustedtradesmen.com/foru...?TID=4930&PN=2
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# 3
ozskin
Old 16-01-2007, 9:42 PM
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aqua panel is a pain to cut it crumbles, try hardi backer instead, it scores and snaps like plaster board, v similar cost. bal also pain in butt to use try biscem tanking kit, flexible and will cope with substrate movement, comes with tape and flanges for the pipes and rollers on like a thick paint, 2 coats its a dodle to use and should be cheaper than bal, then again what isnt
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# 4
Neil_S
Old 16-01-2007, 10:03 PM
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Thanks gents. Bob thanks for the link I read that thread before, its very good.

I shall have a look at the biscem tanking kit.
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# 5
Fred Bear
Old 16-01-2007, 10:48 PM
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I have just fitted Aquapanel in my bathroom and am confused as to how to continue. I have already bought the BAL WP1 tanking kit otherwise I would have been interested in ozskin's idea. The WP1 kit as supplied is designed for applying to plasterboard. Yesterday the BAL technical helpline told me that for a tile backer board like Aquapanel I needed to skim with adhesive before applying the primer. He said BAL White Star (which I've already bought) was fine but now I see from your link that BAL are specifying that only a cement based adhesive should be used. He also didn't mention using an additive. So tomorrow I will be calling the helpline again. If I get any further info I will post it here.
BTW I had no problem cutting the Aquapanel and a jigsaw cuts shapes easily too.

Last edited by Fred Bear; 16-01-2007 at 10:50 PM.
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# 6
Neil_S
Old 16-01-2007, 10:52 PM
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Thanks for the post that is very useful information. In reading the statement in the data sheet I wonder if you can just use BAL-GRIP, it says that can be used for wall areas and the BAL website doesn't say this is compatible with ADMIX AD1 additive, so I assume they mean to use this standalone.
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# 7
Neil_S
Old 16-01-2007, 11:02 PM
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I have sent a message to the gent who posted the guide in the link that Bob posted. He is going to have a look at the data sheet as it sounds like they may have revised the instructions since he wrote the guide.

I'll feedback if he sends me any replies.
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# 8
Fred Bear
Old 17-01-2007, 4:35 PM
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Phoned BAL technical support again and they assured me that White Star ready mixed adhesive is fine to skim Aquapanel with. He repeated that the primer will not adhere properly to the Aquapanel without the adhesive skim first. BTW if I had not already bought the tanking kit, I would not bother to use it. By what I've learnt recently, in a domestic situation the tiles can be fixed directly to the Aquapanel. The important thing is to use a top quality grout such as BAL Microflex.
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# 9
Neil_S
Old 19-01-2007, 10:07 AM
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Thanks for the reply, I am currently looking at the Dunlop range which I notice is also made by the same people as BAL.

I've sent an email to the technical support to enquire if these need any special primers for tile backer boards.
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# 10
tododo
Old 19-01-2007, 4:00 PM
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I am also planning on getting aquapanel with the wp1 waterproofing kit

Was going to follow the guide as on here to do the shower

http://www.ultimatehandyman.co.uk/building_a_shower.htm

Also thinking of getting the dunlop stuff as the guide is supposed to be a bit simpler to follow
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# 11
Fred Bear
Old 19-01-2007, 4:27 PM
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tododo - the point at issue is whether or not you should apply the BAL APD primer directly to the Aquapanel. Ultimate handyman and others say yes but BAL definitely says you must skim with adhesive before applying the primer. Skimming should not be a problem anyway because you don't require a perfect finish. Dunlop and BAL are the same company so their tanking kits are probably the same.

Last edited by Fred Bear; 19-01-2007 at 4:30 PM.
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# 12
Neil_S
Old 19-01-2007, 6:53 PM
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I've sent an email to Bal Adhesives asking them about the conflicting advice between the data sheet and what they gave on their technical support line.

I'll post up what they say.
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# 13
BobProperty
Old 19-01-2007, 7:26 PM
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Quote:
Originally Posted by tododo
I am also planning on getting aquapanel with the wp1 waterproofing kit

Was going to follow the guide as on here to do the shower

http://www.ultimatehandyman.co.uk/building_a_shower.htm

Also thinking of getting the dunlop stuff as the guide is supposed to be a bit simpler to follow
The pictures are the same as the TrustedTradesmen (TT) link I posted earlier. UltimateHandyMan (UHM) used them with the permission of the person who did the work. It is likely though that the text on UHM is a later version. The situation is currently being discussed and investigate by TT members too.
A house isn't a home without a cat.
Those are my principles. If you don't like them, I have others.
I have writer's block - I can't begin to tell you about it.
You told me again you preferred handsome men but for me you would make an exception.
It's a recession when your neighbour loses his job; it's a depression when you lose yours.
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# 14
Alan M
Old 19-01-2007, 8:31 PM
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When I first started using Aquapanel they used to recommend tiling on the rough side, now it seems the smooth side is the way to go.

Skimming the panel before you tank is a new one on me, they never used to advise that at all. The primer sticks like !!!! to anything and I've never had to skim a panel before I tanked it......

Seems to me they move the goal posts every time someone has a !!!! up somewhere.
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# 15
Neil_S
Old 19-01-2007, 9:18 PM
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Thanks gents, to be honest I don't think I would have a problem if I just primed the Aquapanel with Prime APD and then applied the tanking, it just planted a thread of doubt in my mind when I read the BAL datasheet.

Hopefully we can get to the bottom of it and BAL can give a consistent answer!
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# 16
Fred Bear
Old 24-01-2007, 9:32 PM
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Neil - any news from BAL?
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