Greenlight Marine Grade Epoxy Resin System with FAST HARDENER

Product image 1Greenlight Marine Grade Epoxy Resin System with FAST HARDENER
Product image 2Greenlight Marine Grade Epoxy Resin System with FAST HARDENER
Product image 3Greenlight Marine Grade Epoxy Resin System with FAST HARDENER
Product image 4Greenlight Marine Grade Epoxy Resin System with FAST HARDENER

Regular price $ 13.20

Greenlight Marine Grade Epoxy Resin System 

Greenlight Marine Grade Epoxy Resin System is the result of 15 years of epoxy resin usage and development focused on solving the common problems associated with using epoxy resin in less than optimal environments (a.k.a. your typical dusty DIY workspaces)


  • Self Leveling
  • High Surface Tension Tolerant of Small Dust Particles (greatly eliminates pinholes and fisheyes typical of epoxy sealcoats*)
  • Integrated Bubble Releasing Agent
  • High Gloss Finish
  • Easy 2:1 Mix Ratio (100:45 by weight)
  • Water Resistant for all Marine Applications
  • U.V. Resistant
  • Ultra Clear Resin for Coloring with Epoxy Pigments or Tints
  • 100% Solids (Very low V.O.C)
  • Proudly Made in U.S.A

*Recommended sealcoat amount for surfboards is 3 oz. mixed resin per linear foot of board. For example, a 6'0" long surfboard would use 18 oz. mixed resin (6 x 3 oz.) for excellent results.

Also minimal brush strokes leads to a better finish. Brush it out once to cover and walk away. 

Speed Pot Life
Cure time Temperature
Fast Hardener 20 mins 1 1/2 Hours 77 F (25 C)
Slow Hardener 40 mins 4 Hours 77F (25 C)

 Watch Andrew W's review of Greenlight Marine Grade Epoxy Resin:


Available in the following quantities:

6 oz. Kit (4 oz. Resin / 2 oz. Hardener)
48 oz. Kit (32 oz Resin / 16 oz. Hardener)
96 oz. Kit (64 oz. Resin / 32 oz. Hardener)
1.5 Gallon Kit (128 oz Resin / 64 oz. Hardener)
3 Gallon Kit (256 oz. Resin / 128 oz. Hardener)
6 Gallon Kit (512 oz. Resin / 256 oz. Hardener)

Download and Print our Greenlight Marine Grade Epoxy Resin Mix Ratio By Weight Chart for perfect mix ratios and optimal results. We recommend weighing the resin with an epoxy digital scale and use epoxy dispensing caps to nail the weight ratio.

How to mix two part epoxy resin 2:1 ratio or 100 parts Resin to 45parts Hardener

SDS Sheet Download


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Customer Reviews

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Ask a Question
  • I'm repairing my board's nose and rail in New England during temps in the 40s - low 50s. Do these temperatures present any problem for the Marine Grade Epoxy Resin system? If so, can you suggest another Greenlight resin product?

    Greenlight Maring Grade Epoxy with Fast Hardener will cure at any temperature.  The colder the temperature the longer the curing process takes but it will always cure at any temperature when mixed correctly with the correct ratios.  There is no need to alter the 2:1 ration based on temperatures.

  • Is it an issue to hot coat with this epoxy on top of a Resin Research-epoxied lam? I'm trying to burn through some remaining RR epoxy (no pun intended) before switching to what I hear is the "good stuff" from you guys. Thanks

    Using Greenlight Marine Grade Epoxy Resin System over a lamination that was done with Resin Research will be no issue and will bond perfectly

  • I'd like to use the epoxy for an outdoor patio table. Is this epoxy food safe?

    The Greenlight Marine Grade Epoxy Resin System with fast Hardener is great for an outdoor patio table and is food safe.

  • What do we use for cleanup with this product? Acetone?

    When cleaning up Greenlight Marine Grade Epoxy Resin you should use Denatured Alcohol and if you are trying to ust remove dust and dirrt the Epoxy Prep Cloth is the ideal product.

  • Assuming this is good on an epoxy board (Stewart brand) repairing a buckle. First time, so wanted to confirm. Thanks!!

    Greenlight Marine Grade Epoxy Resin System with Fast Hardender was designed to work with all epoxies.  Be sure to prep the are correctly and clean thouroughly s with any Epoxy.

  • Can I use fast hardener for fin box and leash plug installations?

    Greenlight Marine Grade Epoxy Resin System with Fast HArdener is a perfect resin to set you fin box and leash plug.

  • which is the best epoxy for ding repair, the fast, slow or quick kick?

    The Greenlight Marine Grade Epoxy Resin with Fast hardener is our preferred  epoxy for ding repairs.

  • Will there be any bonding issues using this resin for a seal coat over resin research epoxy lamination? I would just buy more resin research but they don’t sell their epoxy in less than 48oz. kits. These 6 oz kits are ideal but I want to make sure I get a good bond.

    Greenlight marine grade epoxy should have no problem being used as a seal coat over Resin Research lamination.

  • Do you have specific gravity (density) information for these materials? I like to mix by weight using a small lab scale, but I need to know the specific gravity to convert volume to weight.

    Greenlight Marine Grade epoxy resin is a 2 to 1 mix ratio.  You can use our resin chart linked here 

  • Can I use this resin for a gloss-coat and then fine sand/polish it? I tried using this resin before and got a bunch of gaps in the coat where the resin didn't surface evenly, I'm not sure why it happened either. I made sure to remove all dust and debris before applying the resin too.

    Greenlight Marine Grade Epoxy Resin is te ideal epoxy resin to use for lamination, seal coat, and gloss coat.  Typically when epoxy "voids", "fisheyes", or  does not cover an area it is due to oils or dirt in the lamination or on the surface you are trying to over with epoxy. 

    All finished products that are going to be covered in epoxy resin of any type should be handled with clean gloves once the project is finished and ready for the epoxy process.

  • I recently made a surfboard using materials from Greenlight. Everything was great, except after only two sessions on my board (which I tinted blue), it turned light brown. Does this color change effect the structural integrity of the board? Thanks, Maverick

    Yellowing from strong sun exposure does not and will not change the integrity of your board construction. Everything will remain the same and you should not have any issues.

  • I accidently got a drop or two of hardener in my resin bottle. Will this ruin the resin or only harden a small bead of it and the rest will be okay?

    The Greenlight Marine Grade Epoxy Resin should be fine if there was only a drop or so of hardener that fell inside.  This being a 2:1 mix ratio nothing should happen to the resin component.

  • Will this melt through polyuethene foam?

    Greenlight Marine Grade Epoxy Resin System with FAST HARDENER is safe to use on Polyurethane foam and is actually the preferred resin for use on PU blanks by the Greenlight Surf Supply Team.

  • Do you recommend using additive f?

    When using Greenlight Surf Supply Marine Grade Epoxy you do not need to use Additive F.

  • Does this resin produce any amine blush when it cures, or is it a fully non-blushing system? My final ("gloss") coats are epoxide, silane & cyclic siloxane-borne ceramics, so any blushing matters.

    All Amine based hardened epoxies are subject to blush. High humidity (damp) and cool environment may cause blush to happen on the surface. Slow curing epoxies are less susceptible to blush.
    If blush occurs it can simply be removed with warm water and Scotch Brite pad and wiped clean with a paper towel.

  • What is the window for re coating Marine grade epoxy with slow hardener with out sanding? Will I have to sand it after 24 hours of laminating coat?

    No need to sand the lamination at any point with the Marine Grade Resin. The seal coat will bond properly any time.

  • For how long can I stock this product without it damaging? which are the ideal conditions for keeping it (temperature , humidity , light exposure )? approximately how many shortboards cut I glass with 3 gallons kit? thank you so much

    The Marine Grade Epoxy Resin has a 2 year shelf life when kept in tightly closed containers at room temperature. If the resin temperature gets below 65F it may start to crystalize but can be heated to fully reliquify at any time.

  • 1. Can Greenlight epoxy resin be used with Resin Research Kwick Kick hardener? 2. Is combining RR epoxy resin with greenlight resin allowable?

    No you cannot mix different brand epoxies, it will not harden. You can use different epoxies on top of each other as separate operations. For example, laminate with Kwick Kick and seal coat with Greenlight Marine Grade Epoxy Resin System

  • Would this be compatible with traditional RR epoxy? For example, if I wanted to use this for my gloss coat over a traditional RR hot coat? If so, would additive F be suggested as well?

    Yes Greenlight Marine Grade Epoxy System is compatible with all other epoxies and will bond permanently to laminations with Resin Research. No Additive F is needed with Greenlight Marine Grade Epoxy System.

  • When would you use a quick curing resin vs. a slow curing resin?

    Slow Epoxy resin for beginners so you have plenty of time before it starts to cure, large projects, and pours more than 1/4" thick. Fast hardener for everything else.

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