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Unread 01-01-2009, 09:44 AM   #1
chuckster26
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Join Date: Oct 2008
Location: garson ontario. (sudbury)
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Red face magniflex super 8820

i tried the search option and came up with only a few posts, but my question was not answered. can i use magniflex super 8820 with kerdi? if i have too, i will go to home depot and get what they recommend...


question 2.

i have a painted wall i want to tile over. it will be a 13 x13 tile. what would ou do to prep this wall? i dont want to remove the drywall cause the wall is finished and would set me back a few more days and a lot of work. any advise?
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Unread 01-01-2009, 10:45 AM   #2
ceramictec
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Quote:
can i use magniflex super 8820 with kerdi?
you shouldn't use a modified thinset with Kerdi.
and magniflex super 8820 is one.

you need to use a Non Modified and not one that is cheap.
you need a good unmodified.

Q. What type of thin-set mortar should I use when installing Schluter-KERDI?

A. The thin-set mortar used for bonding Schluter-KERDI must be appropriate for the substrate and must penetrate and engage the KERDI fleece. For most substrates (e.g., drywall, cement backerboard, dry pack mortar, and the Schluter-KERDI-SHOWER-ST/-SC/-SR EPS foam substrates), an unmodified thin-set mortar meeting the requirements of ANSI A118.1 is recommended. When installing KERDI with unmodified thin-set mortar over particularly dry and porous substrates, it is recommended to wet the substrate first, in order to help prevent premature drying or skinning of the thin-set mortar. Unmodified thin-set mortar must be used to construct all KERDI seams to ensure watertight performance of the system.


Quote:
i will go to home depot and get what they recommend...
that would be another bad move since they don't have a clue what a good modified thinset is or how Schluter Kerdi works.
Quote:
i have a painted wall i want to tile over. it will be a 13 x13 tile. what would you do to prep this wall?
rough sand the paint o rough it up, wipe off the dust with a damp rag, tile over with a modified thinset.
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Unread 01-01-2009, 01:08 PM   #3
Jhereg
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Please don't follow the recommendations of HD employees. Listen to them, then do some research first and see if they know what they are talking about. I've only really met one TRULY knowledgeable guy and he wasn't there for long.
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Unread 01-01-2009, 05:54 PM   #4
Lazarus
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Look for "Ditra-Set." Laticrete offers it and it's the BEST morter to use with Kerdi....bar none!
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