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Veteran
Posts: 136
 
Location: Alabama | In my LQ area, I have floor insulation and then a piece of OSB plywood for the floor and I plan on putting down viny flooring. Since the OSB is not treated wood, I want to put something on it to seal it before I put down vinyl flooring. My first thought was Thompson's WaterSeal however, the people at Thompson's have told me that no floor adhesive will stick to their sealant. Does anyone know of some type of sealant I can put on the wood that will then allow me to put adhesive vinyl flooring down?
I thought about replacing the OSB wood with treated plywood but since my furring strips are attached to the OSB floor, it would be much easier to simply seal the floor rather than replace it.
Thanks!
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Expert
Posts: 5870
 
Location: western PA | Coat the OSB with a couple of coats of oil or water based polyurethane varnish. This will seal and waterproof the wood chips. After it drys, rough up the surface with some coarse sandpaper to allow better adhesion with the flooring material. Gard |
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Veteran
Posts: 136
Location: Alabama | Thanks Gard! Do you know for sure that floor adhesive will stick to roughened up polyurethane varnish?
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Expert
Posts: 5870
Location: western PA | There are many types of flooring adhesives; water based rubber, water based tile adhesives, urethane based products for hardwood flooring, asphalt based for tile and linoleum, epoxies are used in commercial situations, etc. The cured polyurethane finishes are pretty much impervious to many of the other urethanes, as well as water and rubber based products. Some epoxies are very aggressive, and could destroy the varnish coating. If you are using an epoxy, you would not need to pre seal the wood first. A complete application of the adhesive itself would be enough. Many of these adhesive products will also seal the wood upon application, and you may not need the varnish. If you were to read the application instructions of the individual products, you may gain additional insight. Gard |
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Veteran
Posts: 241
| Gard, If I use pressure treated plywood, and strips of pressure treated wood under that I dont need to treat it-- is that right? |
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Expert
Posts: 5870
Location: western PA | Originally written by AQHA 123 on 2009-04-03 3:27 PM
Gard, If I use pressure treated plywood, and strips of pressure treated wood under that I dont need to treat it-- is that right? Yes, that is correct |
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Veteran
Posts: 214
Location: lyle,mn | make sure that the treated wood is not AQC. That stuff eats metal. |
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Veteran
Posts: 241
| 10-4 |
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Question about Sealing Floor in LQ
