I'm not sure, but I can tell you that I can feel the humidity. Now we have significantly reduces the humidity, so in theory the next coat should go on ok, but I'm concerned that the streaks will not melt into the topcoating and perhaps we can help it along by light sanding. We do wood floors where we sand in between coats. This is probably unorthadox for a stone floor. I checked out the MSDS sheet and it says than the main componenent is Dichloromethane with petroleum solvents. It does not appear to be a polymer like Polyurethane although perhaps spot treating with methlyn chloride paint thinner will do the trick (dichloromethane and methlyn chloride appear to be pretty much the same).
Baird,
What is the specific humidity or grains in the area where the floor is and what are the grains in the basement and outside?Date: Tue, 12 Oct 2010 15:06:40 -0400To: Restoration and Maintenance<sccpartners@stoneandtilepros.com>ReplyTo: "Restoration and Maintenance" <sccpartners@stoneandtilepros.com>Subject: RE: [sccpartners] Terra Cotta floorThere is no doubt about that. We are now running dehumidifiers around the clock.bOn Tue, Oct 12, 2010 at 3:02 PM, John Freitag <jfreitag@thestoneandtileschool.com> wrote:
Baird,
Have you checked the moisture levels in the material. It looks to me like this may be moisture in the material causing the problem.
John E. Freitag
President/Director
The Stone and Tile School
Office 407-567-7652
Cell 407-615-0134
jfreitag@thestoneandtileschool.com
From: Baird Standish [mailto:bairdstandish@gmail.com]
Sent: Tuesday, October 12, 2010 1:45 PM
To: Restoration and Maintenance
Subject: [sccpartners] Terra Cotta floor
Hi,
We are working on a Terra Cotta floor that has a few problems and was looking for a few pointers. This is, more of a European terra cotta than a mexican saltillo. We do a fair amount of these every year and typically don' t have that many problems. As with others, we stripped with Aldon gel stripper which rendered the floor completely free of any coating (it was originally waxed). We typically apply mexiglaze and build up the layers, and use different types of applicators depending upon the situation. This time we principally uses a microfiber pad.
The problem is that we are getting a lot more streaking than normal. I think the problem relates to a flash storm on Wednesday and excessive humidity including a flood in the basement that we found out about on Saturday after applying three coats. My analysis is that the humidity was not letting the coats dry sufficiently and each application was pulling on the one below.
What I would like to do if possible is remove much of the streaking and continue coating so that the streaking disappears. I applied a heavy coat yesterday slowly with a finish mop and will check in tomorrow. It looked better but I could still see evidence of pulling. We will final coat it with Lifeguard/polymer. I was going to try a lambs wool applicator tomorrow for my next test. Wondering if using an orbiter/sanding screens/etc, or perhaps light spot stripping might help even out the floor in spots. We shouldn't have been in such a hurry but the owners were pushing us so that a weekend house tour would happen. Have been to the Aldon website but not much help. See pic below. Thanks.
Baird
--
________________________________________
>From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
1616 Walnut St.
Philadelphia, PA 19103
Phone: 215-732-7505
Fax: 215-546-9160
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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
Fax: 215-546-9160
Powered by http://DiscussThis.com
Visit list archives, subscribe, unsubscribe or change your subscription preferences
Start a new conversation (thread)
Powered by http://DiscussThis.com
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Start a new conversation (thread)