Eric, I could be wrong but I think Ray Burke (Spray-Wash) has dealt with it before. I talked with him Friday and he said he would be stop by here after he finished a major project he was trying to finish up. If you need him right away, he's over at AC's or can IM you his contact info.
-- Edited by Ray Wilkinson on Monday 23rd of September 2013 10:59:10 PM
Eric Schnaible said
Sep 24, 2013
I am giving a proposal for a super nice, very large Slate roof corporate HQ. On the test I did, it seems the elastomeric paint may have been bleacehd. Anyone have any thoughts on this?
Liberty SoftWash said
Sep 24, 2013
What are your concerns.
Eric Schnaible said
Sep 24, 2013
That it can be affected by our typical mix, like an oil based paint.
In my experience, elastomeric is water based and should not be an issue.
Liberty SoftWash said
Sep 24, 2013
Elastomeric is water base and solvent base. It can be one or the other.
Liberty SoftWash said
Sep 24, 2013
We are spraying oil base right now in MD. 100 55gl drums on a 200,000 sq roof.
Eric Schnaible said
Sep 24, 2013
Oil based elastomeric?
Liberty SoftWash said
Sep 24, 2013
Yep.
Eric Schnaible said
Sep 24, 2013
Thanks Ray. I will need to look into this. Hope I don't have to pass on the job. When I tested it I told the owner I thought it was a water based elastomeric and he confirmed it was. At this point I think it must be solvent.
AC Lockyer said
Sep 24, 2013
Eric,
Any paint has tint and some tints are not color fast (see pix). Please do a paint test first to see if the paint will change color. Other than that as long as you keep the paint rinsed off keeping the roof cleaning strength from dwelling on the paint too long, you should be OK.
Another concern can be how long ago was it painted. If the paint hasn't cured yet the bleach can act as a solvent blistering or removing the paint.
Also industrial paints like elastomeric are robust and take bleach exposure well. I dont think there will be an issue. Just watch for paint color reversal.
AC
-- Edited by AC Lockyer on Tuesday 24th of September 2013 03:00:45 PM
Thanks Ray. I will need to look into this. Hope I don't have to pass on the job. When I tested it I told the owner I thought it was a water based elastomeric and he confirmed it was. At this point I think it must be solvent.
Eric,
I am having a Revolution Camp in LA on November 8th and 9th.
AC
Eric Schnaible said
Sep 25, 2013
Thanks AC.
I think I will be ok if I keep things rinsed. It will just be difficult given the roof. I cant walk it. A beautiful, technical slate. It will make great photos. I will definitely be using carbon fiber poles.
I wont make LA. Too many family responsibilities. Thanks though.
Eric, I could be wrong but I think Ray Burke (Spray-Wash) has dealt with it before. I talked with him Friday and he said he would be stop by here after he finished a major project he was trying to finish up. If you need him right away, he's over at AC's or can IM you his contact info.
-- Edited by Ray Wilkinson on Monday 23rd of September 2013 10:59:10 PM
I am giving a proposal for a super nice, very large Slate roof corporate HQ. On the test I did, it seems the elastomeric paint may have been bleacehd. Anyone have any thoughts on this?
In my experience, elastomeric is water based and should not be an issue.
Eric,
Any paint has tint and some tints are not color fast (see pix). Please do a paint test first to see if the paint will change color. Other than that as long as you keep the paint rinsed off keeping the roof cleaning strength from dwelling on the paint too long, you should be OK.
Another concern can be how long ago was it painted. If the paint hasn't cured yet the bleach can act as a solvent blistering or removing the paint.
Also industrial paints like elastomeric are robust and take bleach exposure well. I dont think there will be an issue. Just watch for paint color reversal.
AC
-- Edited by AC Lockyer on Tuesday 24th of September 2013 03:00:45 PM
Eric,
I am having a Revolution Camp in LA on November 8th and 9th.
AC
I think I will be ok if I keep things rinsed. It will just be difficult given the roof. I cant walk it. A beautiful, technical slate. It will make great photos. I will definitely be using carbon fiber poles.
I wont make LA. Too many family responsibilities. Thanks though.