Free shipping on orders over $99.99! Don't miss out!

This item is eligible for free shipping on orders over $99.99
This item will require additional time to ship

Product Details

MAS FLAG Epoxy Resin is a medium body epoxy specifically designed to be used as an adhesive and structural laminating foundation. It's thicker formula resists sagging in vertical applications. Medium viscosity works well with fillers when fairing putties, gluing slurries and filleting systems are required.

When mixed with medium hardener, FLAG is more reactive than low viscosity MAS resin. This keeps fillets and fairing compounds from slumping. FLAG resin can be sanded the next day when cured at 60 degrees F or warmer with Medium Hardener. Use with all MAS hardeners. Note: For filled applications, we recommend using MAS Medium Hardener.

We highly recommend this resin for general purpose gluing applications where wet-out of fiberglass is not a consideration, and for filleting and fairing.

Available in Quart, Half Gallon, Gallon, 4 Gallon, and larger sizes.

Info & Guides
MAS FLAG epoxy is also suitable for fast wet-out of light to medium weight fabrics, laminating, gluing, barrier coating and cold molding.
    Technical Specifications
  • Mix Ratio: 2:1 Resin to Hardener
  • Resin Viscosity: 3000-3400 cps
  • EEW: 190-200
  • TG: 140 degrees F
  • Mixed Viscosity (2072/718) at 77 degrees F: 550-650 cps
  • Pot Life (30g batch) 15 minutes
  • Thin Film Set Time at 77 degrees F: 2 hours
  • Peak Exotherm: 360 degrees F
    • Performance
  • Tensile Strength: 7,500 psi
  • Tensile Elongation: 8 percent
  • Compressive Strength: 11,400 psi
  • Use protective gloves when working with this product. Use soap and water or white vinegar to clean your hands. Use Denatured Alcohol to clean your tools.

    Reviews for MAS FLAG Epoxy Resin

    9 of 9 Reviews

    August 13, 2015

    great glue
    By Jdaddy from Crossville TN

    Verified Purchase

    We are building a 25 foot shanty boat with this product. I did some glass work on my 57 beetle floor pans.

    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?

    May 19, 2015

    Great Epoxy
    By Bob from Maine

    Verified Purchase

    Set times are very predictable...great as a glue and for sheething.

    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?

    March 31, 2014

    Good Stuff
    By Barry from `Wisconsin

    Verified Purchase

    I use MAS for fiber glassing and for bonding urethane's for mold machining.

    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?

    March 27, 2014

    Love this product
    By Rox from CLIFTON, IL

    Verified Purchase

    We are redoing the decks on an Alberg 35. There was quite a bit of delamination and water damage. We have cut out bad areas and reglassed. Mas is extremely easy to mix and use. We have used over 5 gal so far.

    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?

    February 27, 2012

    this is good clean fun
    By Frenchie from port townsend

    It's easier to pour in large amounts and is forgiving when your measuring isn't right on.

    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?

    May 11, 2010

    Good stuff
    By captn will from Old Town, Maine

    Very usable odor-free product. Good pot life and strong too. Be careful with the resin pump though -- FLAG resin is thicker, so the pump return stroke is slower. Rushing the pump may reduce the amount of resin in the mix.

    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?

    February 16, 2010

    Great product
    By Allie3566 from IL

    This is a great product. We are rebuilding the deck on a Alberg 35. This product has a long working time when mixed with the slow hardner or medium hardner. It has no odor and can actually be cleaned up with white vinegar. It is sandable too.

    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?

    October 13, 2009

    Best wood repair
    By Charlie from Tucson Arizona

    I have used MAS epoxies to build 2 wood kayaks and repair 4 sailboats. The kayak went down the Missouri River in 2003 and is still functional and beautiful today.

    Expedition kayak
    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?

    October 9, 2008

    Great product, would buy again
    By catman from Plymouth, WI

    Best barrier coat ever used, no extra labor to scuff and clean between coats.

    Bottom Line Yes, I would recommend to a friend

    Was this review helpful to you?