Travaco Marine-Tex RM330K Gluvit Waterproof Epoxy Sealer - 2 lbs for Boat Repair, Wood Sealing & Waterproofing - Ideal for Marine, RV & Outdoor Use

Used this Gluvit to cover the underside rivets on an aluminum boat refurbishment project. Was surprised how "thin" this epoxy is (like water) after mixing. Went on easily with a foam brush, and biggest issue was addressing the "runs". After curing, sanded lightly and applied aluminum paint. Adhesion was excellent.I purchased a 14' jon boat and the seller said it leaked only about an 1" or 2" and hour but it leaked. I purchased Gluvit after reading the reviews and watching some YouTube videos. I followed all the direction from boat prep to application. It took a little longer to dry than I thought it would take being it was about 95 degrees outside. I did apply it under a cover so it was not hit by direct sunlight. I let it dry for a couple of days while I waited for the bottom paint I ordered to arrive. Took the boat out for about 5 hours last week and had zero leaks. I used a very cheap paint brush to apply and only mixed what I thought I would use in about 10 to 15 minutes just to be safe. It is thick so the cheap paint brush worked great and after painting, you could not see where I applied the Gluvit. I have no problem recommending the product for stopping water leaks in a boat.My first order was damaged. The large can lid came open and spilled goop all in the box. Thank goodness for the plastic bag it was in, but some did leak out on the box (reason for 4 stars). Amazon refunded my money pretty quick, so kudos to them. As far as easy to use, it's not the easiest stuff I've ever used. It has the consistency of a thick paint, so when applying it to vertical or over head parts it will drip, you just have to keep going over the same area so you don't end up with stalagmites hanging from your project. I applied the Gluvit to the keel of my aluminum boat in an attempt to stop the loose rivet leaks while it was on the boat trailer because I had no way of turning it over. Directions state it has a working time of 90 minutes, I found it's a little longer than that. Do not buy this stuff thinking it will fill gaps because it will not. I had seams less than 1/8 of an inch and it just won't fill the gap. Of course the directions will tell you to use a gap filler on those areas first. It will however seal loose rivets as long as they are not gapped very far. Prep is key, so wire brush or sand the area to be treated, clean with a good solvent afterward, such as paint thinner of acetone. Use the blue painters tape to tape off the area you will be applying or you will end up with epoxy swipes that will leave a shine where you do not want it. Make sure you remove the painters tape before the epoxy hardens or you will have to live with the tape on your project. I used a cheap paint brush to apply the epoxy and it performed great. The two pound can covered an area of about a 6" wide path 17' long with about two decent coats and enough left over to dab some on handful of pin holes on the transom cause by electrolysis. The epoxy was tacky after about 4 or 5 hours and appeared to be hardened over night. Cure time is 48 hours according to the directions, I'll give a few weeks. Ultraviolet light will cause it to change colors according to the directions, so plan on painting over it. I plan on using an armored truck bed coating because I have plenty left over from another project and it will protect the epoxy better than regular paint. Wear gloves and an old long sleeve shirt your willing to trash or you will have a bad day when your finally done. Ask me how I know about the shirt. The big question is, Would I buy this again? Probably, but I would definitely fill the seam gaps with a marine grade putty first. Even the smallest gaps will require a filler. Hope this helps you folks on whether it will work for you.I have an old 1236 jon boat and man did it leak. I tried bed liner spray and JB Weld Marine both seperate and together. That didn't work at all. Read about this product and although I believe that if it sounds too good to be true, it probably is, I sprung for a quart anyway. I cleaned off all of the bedliner and JB Weld that I could, replaced all the rivits using Flex Seal on each individual rivit and allowed that to cure for a week I then coated just the rivits with Gluvit. When I saw that I had plenty left, I coated with a roller, the entire bottom of the boat with Gluvit. Let that cure for a week and then applied 3 coats of bedliner, again with a roller. Let that cure for a couple of weeks. I have not had a drop of water come in through the bottom of the boat since even after beaching it occationally on accident on a concrete boat ramp. Going on six months now. and its used at last 3 times a week in lakes, rivers and bays. Boat is trailerd, powered by a 6hp Mercury. Even engine vibration and driving it up on the trailer has not forced a leak. I am shocked at how this product worked and will be the first to let you know if I have a failure. Not too worried though after recently inspecting the bottom of the boat. Looks perfect.For a aluminum boat ribbetsLove this product. Went on easy. 16' Jon boat covered. Will update about leakage later, but I feel it's going to be water free inside.I put this product on my boat prior to painting sealed up leak’s wellworks great! added some fiberglass mesh for extra support. Product doesn't like to be sanded, stays soemwhat flexible but worked for my application.