I am resealing a leak at the top of my port 75 gallon polypropylene
water tank. With some contorsion I have access to the problem spot, but I will not be able to use two-handed tools or heat
guns. This will be a repatch of a location that has an
aluminum flange over the corner of the tank covering the crack that had be successfully sealed before the
purchase of my
boat 27 years ago. Compressed under the flange is a material that appears to be 5200. Although this would not have thought to have been effective the crack is located at the top of the tank with little pressure and the 5200 had been compressed againt the tank under the
aluminum. Regardless, at each filling I now have a small amount of
water running out upon my aft
cabin teak & holly floor. My back up solution will be to view the tank at fillings and not wait for the water to exit the vent; however, I would still have a problem on a starboard tack. When searching old post I found the best
advice for my application might be 3M's DP8005 (methylcrylate) which I could mix (two part) and jam under the plate and press into the crack with a spatula. I've already removed most of the 5200 and wire brushed the polyprolene. I will use an acetone wipe before application. So, the 3M DP8005 was posted
advice from a coupe years ago. Hsa anyone found a newer effecive application that I could apply with my limited access?