Joel Posted October 18, 2004 Report Share Posted October 18, 2004 I primed the lazarette with Behr latex primer. After drying for two days at 70 deg. I could still easily scrape the primer off with my thumbnail. This is only a problem where I epoxy coated the wood or have a fillet. So.... I decided to re-sand those areas. The primer sanded off easily. Is this typical? Would a longer drying time make the primer adhere better to the epoxy? I was considering trying bulls Eye 123 primer. It supposedly sticks to anything including PVC, Glass, Tile etc. Has anyone tried this primer? http://www.zinsser.com/product_detail.asp?ProductID=11 Thanks, joel Quote Link to comment Share on other sites More sharing options...
Ken_Potts Posted October 18, 2004 Report Share Posted October 18, 2004 I think I remember hearing from somebody at West Systems that virtually the only thing that won't stick to properly prepared (sanded) two-part epoxy is one-part epoxy. You might check to see if that bullseye stuff is one-part epoxy. Quote Link to comment Share on other sites More sharing options...
JTam Posted October 18, 2004 Report Share Posted October 18, 2004 For Paint or varnish to stick to epoxy you need to remove the epoxy blush left behind after the stuff hardens. I would sand all loose primer off, then scrub the area with soapy water and a nylon scrubber to remove the blush. Be sure to rise all of the soap off, and let dry, before re-priming. Note: Dry sanding epoxy just spreads the blush over a larger area, either wash the area before sanding, or wet sand and rinse the while still wet Quote Link to comment Share on other sites More sharing options...
Joel Posted October 18, 2004 Author Report Share Posted October 18, 2004 I did dry sand the epoxy and then washed everything down with clean water. I think I'll try to wash down again with soap and water as suggested and try again. Do you think ammonia would be good for this? I am just going to do a small area and see how it works out. joel Quote Link to comment Share on other sites More sharing options...
ken connors Posted October 18, 2004 Report Share Posted October 18, 2004 if i remember right, latex will dry just fine in a day or so, but can take a couple of weeks to cure good and hard Quote Link to comment Share on other sites More sharing options...
capt jake Posted October 18, 2004 Report Share Posted October 18, 2004 I never seemed to run into the blush problem on either boat I have built. I have always washed with Lacquer thinner as recommended by One Ocean Kayaks. Haven't had anyting peel off yet. http://oneoceankayaks.com/ See the epoxy tests page as well as other tests. edited to say, I don't see this exact reference in the test page, though he did recommend it when I built the kayak. Quote Link to comment Share on other sites More sharing options...
Frank Hagan Posted October 19, 2004 Report Share Posted October 19, 2004 My experience with latex primer was that it took a long time to get a hard surface. It dried well, but I could scrape it off for about a week. Latex overcoats took even longer ... I had to wait a month for the three coats I added (in quick succession!) to dry hard enough to flip the boat. I think Bulls Eye is a shellac based primer (check the label). I don't have any idea how shellac works on epoxy, but I would guess it would be OK. It goes over everything else! Quote Link to comment Share on other sites More sharing options...
Stump Posted October 19, 2004 Report Share Posted October 19, 2004 Just my own two cents. I have NEVER had good luck with Behr products. Then again, some people swear by them. So....I guess I really can't help you. :wink: Quote Link to comment Share on other sites More sharing options...
Guest Posted October 19, 2004 Report Share Posted October 19, 2004 I have used hundreds of gallons of Kilz, oil base, on properly prepared epoxy as a primer with the exception of using it under a two part poly paint. It dries in short order for recoating. Latex is not really any costs saving except for cleanup, in my opinion. We pay around ten dollars a gallon at most of the big box stores and even Wal-mart, if you shop with them. Quote Link to comment Share on other sites More sharing options...
Joel Posted October 26, 2004 Author Report Share Posted October 26, 2004 Well, I re-sanded everything real good with 80 grit and washed down with ammonia and water as suggested on the can. The Bulls Eye 123 primer dried hard in less than a day. I can not scrape it off the epoxy like the latex primer I used earlier. I'm not sure if its the primer , the prep or both, but I am very happy with the results joel Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.