Hey everyone I painted my new house (shingles) with olympic primer and stain and it peeling like crazy now. I believe I messed up by not letting the primer cure long enough before putting on stain. Anyway I have tried power washing, scraping and sanding all are very slow and messy. I am thinking about sandblasting at a low powersetting. Am I making another mistake? Has anyone had good luck going this avenue.
Thank you all
Replies
First mistake was primer. I am no big fan of primer as many that I;ve used sit on top of the wood surface. I prefer to use the actual paint in a thinned state for the prime coat. It will soak in and take a good bite. Then additional coats are a breeze.
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Pete
I had to log in under a new name for some reason my password would not work.
You are not the first person to say not to prime before staining I have spoken to several old timers who have done this for many years. (I just wish I had asked before I primed). And they said the same as you oh well live and learn.
Thank You very much for the reply
I have never heard of using a primer before staining. Stain is intended to penetrate the wood. A primer is a seal and bond coat that would interfere with that
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Piffin I followed the instructions on the Olympic can I even used there primer figuring they would be a perfect match. But another life lesson I will come here first next time and ask the guys who do it everyday. Thank you all
But another life lesson I will come here first next time and ask the guys who do it everyday.
Well, actually an even better lesson is to hire a professional next time. Even asking the right questions here and getting the right answers does not instantly make you qualified to do what others do for a living.
As you saw, it would have been much cheaper to hire the most expensive painter than to do what you need to do now. I sincerely hope I'm wrong, but I don't think you can save the material at a reasonable cost, unless your time is free.
DG/Builder
latex stain needs an oil base primer for optimum results, do not skip this step. and use a oil primer meant for outside and not kilz or cover stain.
You didn't say if it was oil or latex primer and stain. If it is peeling, my bet is that you used latex and your new shingles were actually more weathered than you thought. Oils generally will penetrate weather damaged wood to get a good bond. Latex primers stick tenatiously to a very thin top layer. Fine if the wood is in A - 1 condition, not sun damaged for even a couple weeks or longer.
Power washing is very hard on wood. I can only imagine what you would do with a sandblaster. On the plus side, it would remove the damaged, weathered layer of wood. I certainly would not due any more area than I wanted to replace before stopping, taking a very good look at the results, possily painting to see how it looks before continuing.
Kurt
I had to log in under a new name for some reason my password will not work.
I am 99% sure it was an oil based primer and latex stain the I think the problem came when I rushed from priming to top coat. I had rented a portable lift from a local rental center it was only available for the weekend because a contractor needed it the following monday. It was great I could reach those peaks and I was going along thinking this is a breeze I don't need to hire a guy to do this this is a piece of cake. I was my own hero what a "dope" and I learned another lesson. So this time I am coming to the pro's in hopes that next spring I am not doing this again. I thought maybe using a sandblaster at a very low air pressure so as not too damage the wood itself maybe the quickist way to go. Although I am finding it is almost peeling itself everyday I go out there more is on the ground I tried scraping and sanding and it is coming off fairly easily. I will try a small area like you suggested and get back to you and let you know how it went. Thank You very much for your input talk to you soon.
Is the top coat peeling off from the primer or is everything peeling off, leaving bear wood? If you are right, I can readily understand the latex top coat not bonding to an uncured oil primer but I would expect the oil primer to bond to the shingle and remain as the oils should be able to penetrate into the wood.If everything is peeling, leaving bear wood, I would look further into what the problem is. I can think of explanations. The most likely is that it was actually a latex primer. If not, I would look for some reason that the primer was not able to penetrate the wood surface. Maybe the shingles have some type of water repellent sealant containing a wax or silicone that will not allow penetration of the oils. I am thinking that this could happen if these were shingles specially treated to be left natural. In which case, I don't know what it may take to get paint to stick. I would do some tests on bear spots to see if the shingles will absorb water or paint thinner or does it just sit on the surface. If they are absorbed, the color of the wood should get darker. If it doesn't absorb paint thinner, there is little hope that the oil primer will penetrate either.If an oil primer is not sticking to the wood, I would do some serious investigation and probably run some tests to see that you can get a primer and paint or stain system to stick before I tackled the whole job to possibly have a rerun. I would check back with the contractor and supplier of the shingles to see I there is a waterproofing applied to the shingle and if there is, you at least know what you are dealing with.
Kurt everything is peeling right down to bare wood I will check with the shingle supplier to see if they were treated in anyway. I spoke to my builder he told me to wait one year to paint which I did. He said he has used these shingles in the past and has had no problems with them taking paint. But I was talking to a neighbor the other day and he said a guy up the street had the same problem a few years back so now I am not sure if it could be a coincidence or not. I will try the absorbtion check also thank you for input.
that is sounding more like the shingles were weet or had moisture coming out thru them
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you must be right I thought they were dry but I guess not
Thank you everyone