Highly durable waterproofing finish for outdoor wood

Reply

  #1  
Old 06-10-18, 08:14 PM
Member
Thread Starter
Join Date: Sep 2017
Location: Waco, TX
Posts: 2
Received 0 Votes on 0 Posts
Highly durable waterproofing finish for outdoor wood

I have covered an outdoor netted racquetball practice area in the back yard with OSB boards. Unfortunately, even though there are enough 2x4's underneath the floor to keep it from bowing, it does need further protection against the weather. I have covered it pretty well with Thompson's Water Seal but it is not enough. I hear that a poly-urethane that is rated for outdoor use is the way to go. I want to preserve as much of the original color and texture as I can and will probably mop on the finish. The area is about 16 x 32 feet. What sandpaper should I use to sand it and what poly-urethane finish should I buy? Links to the correct finishing product(s) are greatly appreciated.
 
Sponsored Links
  #2  
Old 06-11-18, 03:17 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 46,539
Received 170 Votes on 151 Posts
TWS makes it difficult to apply any other type coating! One of the ingredients of TWS is some type of wax that will repel other coatings. Nothing water based will adhere well to TWS! You pretty much need for the TWS to wear off and then use an oil base coating. Spar poly is the exterior clear you'd want to use but on a flat surface like that it will take a beating from the elements. Since you started with TWS it might be better to continue with it, recoating about twice a year.
 
  #3  
Old 06-11-18, 05:38 AM
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 21,636
Received 319 Votes on 293 Posts
OSB is difficult to keep alive out in the elements. It's just not intended to be exposed. You might be fighting a loosing battle trying to preserve the OSB. You can probably prolong it's life but I would start thinking of what you should replace it with in the future.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: