521 Marine Grade Epoxy Resin
521 Marine Grade Epoxy Resin - Quart Kit - Slow Hardener 521 Marine Grade Epoxy Resin Pro Marine Supplies
521 Marine Grade Epoxy Resin - Quart Kit - Slow Hardener 521 Marine Grade Epoxy Resin Pro Marine Supplies
521 Marine Grade Epoxy Resin
521 Marine Grade Epoxy Resin
521 Marine Grade Epoxy Resin
521 Marine Grade Epoxy Resin
521 Marine Grade Epoxy Resin
521 Marine Grade Epoxy Resin
521 Marine Grade Epoxy Resin

521 Marine Grade Epoxy Resin

Same day shipping on orders placed Mon-Fri by 4pm.

Retail Price: $49.99

Your Price: $39.99

Description

521 Marine Grade Epoxy Resin Product Description 

Pro Marine Supplies 521 Marine Epoxy Resin can be used with our 521 Fast or Slow Hardener, depending upon your application. 521 Marine Epoxy Resin bonds with fiberglass, metals, wood, and composite fabrics and features superb strength, durability, and moisture resistance. The 521 Epoxy cures to a high-strength solid, suitable for laminating, bonding, fairing, coating, and reinforcing. Pot life ranges from 12 minutes @ 70°F for Fast Hardener, to 30 minutes @ 80°F for Slow Hardener. Cures to a high-strength, moisture-resistant, light amber plastic solid that can be sanded and shaped easily, once cured. Self-leveling properties are ideal for coating and laminating. Viscosity is favored for wetting out fiberglass cloth and other reinforcement fabrics easily. Use this versatile epoxy resin with 521 fast or slow hardener to complete a number of boat building, repair, and restoration projects.

  • Bonds with fiberglass, reinforcement fabrics, wood, etched aluminum, and bare steel and lead
  • Makes a strong filleting or fairing compound or adhesive 
  • Excellent thin-film characteristics provide smooth flow-out and self-leveling ideal for coating and laminating
  • Easy to measure and mix using pre-calibrated 5:1 Epoxy Pumps (included), or by volume
  • Easy to apply by brush, roller, syringe, spreader, or by pouring onto wood, fiberglass, reinforcement fabrics, etched aluminum, bare steel, and lead.
  • Compatibility: Pro Marine Supplies 521 Epoxy Resin can be used interchangeably with 521 Fast or Slow Hardeners
  • Kits are available in Quart and Gallon sizes, with your choice of Pro Marine Supplies 521 Fast or Slow Hardener. The kit comes with resin, hardener, pumps, and pump calibration instructions.

521 Fast Hardener Product Specifications 

Fast Hardener is a perfect selection for applications requiring quick working time and for use in cooler climates (recommended use 60-70°F) 
  • Minimum recommended temperature (Fast Hardener): 60°F - In cooler temperatures, the 521 Epoxy Resin/Fast Hardener mixture remains workable to give you adequate time for application, and it speeds up cure time.
  • The recommended temperature for use and dispensing via pump: 60-70°F
  • Pot life @ 70°F: 12 minutes (Fast Hardener)
  • Set time @ 70°F (thin film): 6 hours
  • Cure time @ 70°F (thin film): 1 to 4 days
  • Hardener Color: 521 Fast (Dark Amber) 

 

521 Slow Hardener Product Specifications 

Slow Hardener is a perfect selection for applications requiring more working time and for use in warmer climates (recommended use above 80F) 
  • Minimum recommended temperature (Slow Hardener): 80°F - Slow Hardener buys you a little more working time in warmer temperatures that tend to reduce working time and cure time of epoxy resins.
  • The recommended temperature for use and dispensing via pump: above 80°F
  • Pot life @ 80°F: 30 minutes (Slow Hardener)
  • Set time @ 80°F (thin film): 10 hours
  • Cure time @ 80°F (thin film): 1 to 4 days
  • Hardener Color: 521 Slow (Clear-Light Amber) 

Safety Information

Always wear protective clothing and equipment to protect your eyes, skin, and lungs when working with 521 Marine Grade Epoxy Resin and Hardeners. Personal protective clothing should include appropriate gloves, safety glasses or goggles, a respirator, and protective clothing.

 *Please note: The 521 Marine Epoxy is not meant for clear coating, Table Top, Counter, or Art Applications. Please see our Table Top Epoxy for those types of applications. 

Printable Guide: Boat Building & Repair with Marine Epoxy

Printable Datasheet: 521 Marine Grade Epoxy

Customer Reviews

Based on 4 reviews
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(4)
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J
J.D.

Excellent product.

Thank you James for sharing your feedback with us! - David- Customer Support Pro Marine Supplies
J
J.-.S.A.
AWESOME!

Product was packaged perfect and thats always the first challenge. Epoxy and hardener were sooo simple to use, pumps make it idiot proof! Sarah took great care of me and my order. Pro Marine Supplies is now my first and ONLY choice when doing boat repairs. The other epoxy guys lost my business because they took me for granted! Thanks a BUNCH Pro Marine.

Thank you jason for sharing your feedback. it is appreciated! David- Customer Support - Pro Marine Supplies
B
B.K.
Grest product

Used this product for a jet ski repair and worked very well. Fast delivery easy instructions with lots of help support if needed.

Thank you Barret for sharing your feedback with us! - David- Customer Support Pro Marine Supplies
K
K.C.
Professional

Great product and quick and hassle free service.

Thank you for sharing your feedback! - Holly F. Customer Support Pro Marine Supplies

521 Marine Grade Epoxy Resin

Customer Reviews

Based on 4 reviews
100%
(4)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
J
J.D.

Excellent product.

Thank you James for sharing your feedback with us! - David- Customer Support Pro Marine Supplies
J
J.-.S.A.
AWESOME!

Product was packaged perfect and thats always the first challenge. Epoxy and hardener were sooo simple to use, pumps make it idiot proof! Sarah took great care of me and my order. Pro Marine Supplies is now my first and ONLY choice when doing boat repairs. The other epoxy guys lost my business because they took me for granted! Thanks a BUNCH Pro Marine.

Thank you jason for sharing your feedback. it is appreciated! David- Customer Support - Pro Marine Supplies
B
B.K.
Grest product

Used this product for a jet ski repair and worked very well. Fast delivery easy instructions with lots of help support if needed.

Thank you Barret for sharing your feedback with us! - David- Customer Support Pro Marine Supplies
K
K.C.
Professional

Great product and quick and hassle free service.

Thank you for sharing your feedback! - Holly F. Customer Support Pro Marine Supplies