[Greenbuilding] Redoing all floors

[Andrew Pace]

Jason... I¹ve been in the industrial coating biz since 1989, so etching to
me has always meant ³acid etching².  Any other type of surface prep would be
called something different....blasting, scrabbling, scarifying, etc.   Not
everyone uses the correct terminology, so mistakes can be made.   Too many
contractors who don¹t know how to prepare concrete have tried to acid etch a
slab that has a cure-n-seal on it, only to find that the acid doesn¹t work.
In your situation, the stripper worked because the paint, sealer and stain
are all topical.  However, If you tried to acid etch that surface without
stripping it first, it wouldn¹t do a thing.

Off topic...Those soy-based stains...I¹m still not convinced there is any
³green² benefit to them.  According to what I¹ve read, don¹t you have to
acid etch bare concrete before applying the stain?  So, if you are still
using an acid, why is the stain any more eco-friendly than using an acid
stain? Just curious.

Andy



On 7/27/11 3:01 PM, "Jason Holstine" <jason at amicusgreen.com> wrote:

> Hi Andy,
> 
> Tell that to my own concrete, when a customer decided to spill a gallon of
> paint, and we used our soy-based paint stripper and it tore right through the
> spilled paint, sealer, and soy-based stain so the concrete ended up looking
> bare.  It doesn¹t have to be an acid etch to ³etch² up the sealers.
> Ultimately, the success of the approach depends on the concrete and how deep
> these finishes/stains were allowed to get.  If the concrete was messed up,
> they may well be sitting more on top than in it.
> 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/greenbuilding_lists.bioenergylists.org/attachments/20110727/ddd7aebe/attachment.html>