3M Marine Premium Filler is a water resistant vinyl-ester filler designed for fiberglass repair work above or below the waterline. It is ideal for repairing decks, hulls, and other fiberglass components. It can also be used to treat gelcoat blister damage. Premium Filler features a unique and easy to sand formula designed with 3M Scotchlite Glass Bubbles. Available by the pint, quart, or gallon.
May 28, 2023
We needed a reliable solution for a banged up centerboard. This filler did the trick.
June 11, 2018
very quick tack time .but in smaller portions an excellent product easy to mix fill and sand
May 20, 2014
This was used to fill in the countersink over bronze flat head screws after a seacock installation. It applies easy, and sets up really fast. You can sand it smooth within an hour or two of application. Allows you to get more work done the same day.
May 13, 2013
A "golf ball" sized blob of this filler is about as much as I could mix and apply before it began to set up. I had a deck area of about one square foot to fill and fair, and it took about five batches to get close to the final level. The sandability in half an hour is true, but I'm not on the clock, so I'll stick to epoxy fillers in the future.
May 17, 2011
Easy to work with, very strong when cured correctly
January 25, 2010
I am redoing a a boat that I purchased and I am doing some repair, before I paint. This filler goes on well and sands very easy
May 30, 2009
I found this product easy to use. Yes, it sets up quickly but the instructions tell you not to mix a lot at one time. It sands easy and used it above and below the waterline. Good stuff!
January 12, 2009
Unlike the previous complaint I felt it was a great product. You must be cautious not to mix more than you can work in a few minutes. Do not mix in the can. Place a workable amount on a piece of scrap and add the hardner. Mix and use. You can sand in 30 minutes or less.
August 29, 2008
The working time is so short for this product that it is hard to usemore than a golf ball sized batch at one time. If you have a lot of holes to fill, find another product.