520 Slow Marine Hardener


Use 520 Slow Hardener when you are working on a large lamination project. The slow gel time and cost effective pricing will make you a happy boat builder. Only use this product at a 5:1 by volume mix ratio with the Marine Epoxy Traditional Resin.

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What You Can Expect

Product Details

  • Great for laminating wooden FRP construction boat hulls or other projects
  • Can be used with our fillers and for gluing, bonding and filleting
  • Cost effective laminating hardener
Product Specifications
  • Mix Ratio: 5 to 1 by volume
  • Gel Time: 20 minutes at 77°F in 150g mass
  • Work Life: 1.5 hours at 70°F
  • Hardness: 82 Shore D