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Unread 01-27-2015, 11:07 PM   #2
builder, anti-builder, rebuilder -- Retired Moderator
Join Date: Mar 2009
Location: oahu
Posts: 13,164
Good question. Don't think any heat a typical consumer would apply to a tile will damage it, but can't give you a temperature to go by. If they get a tile to 600F though, that may damage other parts of the install or structure.

Residential steam cleaners, however, may get hot enough to soften or damage some of the other components that may be part of a tile installation. For example; epoxy grout, caulk/sealants, etc...

Here's a quote from Laticrete regarding steam cleaning their SpectraLOCK Epoxy grout. From here

Can I steam clean SPECTRALOCK® PRO Premium Grout or LATICRETE SpectraLOCK PRO Grout?

SPECTRALOCK┬« PRO Premium Grout or SPECTRALOCK PRO Grout can be steam cleaned using low temperature steam cleaners. Industrial-type steam cleaners which generate temperatures exceeding 250˚F (121˚C) are not recommended.

"the road to hell is paved with osb, mastic, pre-mixed latex 'grout' or 'thinset', "
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