Polyester Structural Repair Putty - Marine Grade Long Strand Fiber Fiberglass Reinforced Filler for Boat and Automotive Repair

After I reinforced a hole in the hull with fiberglass and resin, there was still a low spot. I figured it would take forever to keep filling it in with resin, plus the resin is extremely runny so it is hard to get it to stay in the low spot. I came across this putty and out of the can it is extremely workable, not runny, does not sag and stay put. Even mixing in the liquid hardener does not effect it or make it runny. I applied it to the hull and it literally took one coat and evened the low spot out. I mean it goes on so smooth, and you have plenty of time to work with it before it starts to get tacky. The price is very fair compared to other stuff like Bondo which they say you don't want to use for these types of repairs. I have yet to sand it, but it is extremely hard and nothing an orbital sander can't handle. Hope this review helps as I was going back and forth on what fiberglass to use.

I was fixing some holes in the boat and I’ve never actually used the polyester before. I usually use epoxy and personally in the future, I just will use epoxy and fiberglass. Nonetheless this does solidify well. This does appear very solid. I think it’s a good quality polyester, but I wouldn’t use it personally again.

Major boat repair work going on here, and I've gone through close to a gallon of this structural repair putty while making fillets and such. I can't say anything bad about the product - the only issues I've had are skill issues from not being a pro boat builder.This stuff has the consistency of petroleum jelly, and spreads the about the same. It's very sticky as well, which combined makes it a bit harder to contour with your finger, but like I said - skill issue.

Has title said? Make sure you're in a well validated area to allow the smells to dissipate. I use this to reinforce a deep bathing tub. It removed any side parl flex and reinforced the general form amazingly well. No problems with sag at thicknesses of about 1/4 of an inch. No need for fiberglass sheeting to help hold in place or for extra reinforcement damming. I just mixed like instructed and spread onto the unfinished underside to my desired shape and thickness and took the weekend to allow a full cure. I was using a plastic bag taped to my arm over top of a rubber glove to spread into the far away. Hard to reach crevices as the tub was already installed. At one point I tore the bag and glove and got a decent amount up inside against my skin. But the time I got through with the tight space I was working. I had quite the mess on my hand literally. With some elbow grease and some soap and warm water, I was able to remove all of the putty with only removing a few unfortunate hairs.

I used TotalBoat Polyester Structural Repair Putty for major repairs on a 45 year old Old Towne Fiberglass canoe. It worked well in thick areas as well as for filling of minor scratches. It cured well, sanded well and was as easy as Bondo to work with.

Worked great for making a piece that was missing on the rear wheel well on a 1966 corvette

Great Service and products

I would buy again. Easy to use. No issue, just make sure you are in a well-ventilated area.

Worked as expected.

Great product. Works as directed.