If there a water based
penetrating sealer on there now then Aldon’s Premium Stripper will not
remove the sealer from below the surface. Therefore any sealer applied must be
compatible with the old sealer remaining below the surface or separation
(peeling) between the old and new sealers could occur. I would test a non-methylene
chloride stripper first. Aqua Mix makes a Sealer & Coating Remover that
works pretty good on non solvent based sealers.
Methylene chloride is not user friendly! OSHA's
methylene chloride standard requires that all facilities using methylene
chloride monitor employee exposures. Hours after working with methylene
chloride high levels of Carboxyhemoglobin (hemoglobin
carrying carbon monoxide instead of oxygen) can be found in the blood, due to
its slow release into the circulation with subsequent metabolism, leading to
formation of carbon monoxide. Not good ……..
To keep the Aldon’s Premium Stripper solvent I use lacquer
thinner or Aqua Mix Sealer & Coating Remover and clean up with rags.
Joe Walters
Stone & Grout Meister, LLC
Phone:
505-890-3835
Fax:
866-920-2135
PO
BOX 66826
Albuquerque,
NM 87193
From: Baird Standish [mailto:bairdstandish@gmail.com]
Sent: Sunday, February 01, 2009 3:09 PM
To: Restoration and Maintenance
Subject: RE: [sccpartners] Oil or water?
Thanks Joe. So as things have evolved, while I have
been out in Pittsburgh rooting for the Steelers, my client has tested the floor
with laquer thinner, which has not budged the sealant, leading him (and
tentatively me) to believe that the sealer on there now is water based
penetrating sealer. In which case, Aldon recommends treating just with
Lifeguard topical coating or their same day waterbased sealant with or without
Lifeguard. The crux is that Aldon recommends removing the original sealant with
their gel stripper (contains methylene chloride and methanol) WITHOUT water but
with rags. Again, not a process I have worked with much and wonder if
anyone out there has some advice on how to do this without creating a complete
mess but not leaving any behind?
Thanks so much.
Baird
On Sat, Jan 31, 2009 at 7:42 PM, Grout Meister, LLC <info@groutmeister.com> wrote:
Baird, Mexiglaze will not allow
vapor transmission, de-limitation can occur if moisture is trapped inside the
Terra Cotta structure. I see it allot here in the historic part of old town and
along the Rio Grande. I don't use Mexiglaze except for exterior applications. I
used it once on Sandstone and the home owner had to move out the smell was so
bad. The SBS sealer by Aldon is another good product, it has less solids then
the Mexiglaze and works well for dense surfaces. I use a small leather hammer
to lightly tap on tiled surfaces to check for de-lamination you will hear
hallow sound, but it may not be de-lamination in the tile. Normally the change
in sound is the result of the tile coming loose from the mortar bed. Aqua Mix
has some pretty good topical sealers, the janitorial services here use concrete
sealer for interior Terra Cotta.
Joe Walters
Stone & Grout Meister, LLC
Albuquerque, NM
From: BAIRDSTANDISH@comcast.net
[mailto:BAIRDSTANDISH@comcast.net]
Sent: Saturday, January 31, 2009 4:08 PM
To: Restoration and Maintenance
Subject: [sccpartners] Oil or water?
Hi,
Here's one I haven't confronted before. A potential client would like
to have his terra cotta floor stripped, cleaned and recoated (the
tiles are dark red and 6 sides- more refined than Mexican tile-and the
sealer has become scratched and worn off in places). But he has
concerns that if I apply a solvent based sealer (I suggested
mexiglaze) to a floor that previously had a water based sealer (or
vice versa), it might delaminate. After stripping and cleaning floors
before with a brush I have never noticed any residual under-the-
surface coatings remaining and, at any rate, never had a problem like
this. I am not even sure how to test for this. But I don't want to buy
a case of each and test it it that way (delamination would probably
occur much later anyway). How would I test? Is this a concern?
Also,
can anyone suggest alternatives to mexiglaze? I have been using it
religiously after Brian Yeager suggested it many moons ago, but it
takes 6 days for Aldon to ship it to me.
Thanks
Baird
__________________
From:
Baird Standish
Managing Partner
Facility Specialists Decorative Floor Restoration
1616 Walnut Street
Philadelphia, PA 19103
215-732-7505
www.facspecs.com
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>From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
1616 Walnut St.
Philadelphia, PA 19103
Phone: 215-732-7505
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