G
grumpygrouter
Not having been in the trade for very long, I am a little confused by your strong argument about tiling onto MDF. Not so much about tiling onto a wood based product, just that you seem to be implying that BAL, the leading British adhesive manufacturer for tiling are wrong. They quite clearly state in their literature that Mosaic-fix (for instance) can be safely used to tile onto MDF as long as it is done correctly. If you comply with BAL procedures, they will even guarantee the installation for ten years where their products are concerned.what about the moisture in the adhesive dave (in the two hours, if rapid,12 hours if normal set adhesive ),as mdf is (kinda) laminated........what if the first 1mm/2mm of mdf blow (expand) from the moisture in the adhesive......the tiles are gonna hold up for a while.......but i would not want to do a tap test (knock,knock!).......
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Ardex have a similar assertion with some of their products and I have no doubts other adhesive manufacturers do too.
Weber incidently stipulate that moisture resistant MDF is not a suitable surface to tile onto. Normal stuff apparantly is OK.
Are you saying they are wrong?
Grumpy