UltraClear Marine Epoxy Instructions

Please Note: You should always wear protective glasses and gloves when working with this material. Working in a well ventilated area is also recommended when using this product. This epoxy is not for use over oil based paints, polyurethanes, or stains.

Key Traits

UltraClear Marine Epoxy can be used as a bonding agent for fiberglass, wood, marine reinforcement fabrics, bare steel and lead.

Two-part system (resin and hardener) with three types of hardener to choose from depending on needs.
Features self-leveling for coating and laminating with a smooth finish.
Can be applied with a brush, roller, spreader, syringe, or poured directly onto wood, fiberglass, or any of the above mentioned structural building materials.

Preparation

Make sure all of the surface areas are clean and free of any contaminants. They should be dry and sanded smooth for ideal bonding conditions. Make sure to clean off all sanding dust once finished. Keep room temperatures between 60 - 80F degrees with humidity under 85% for optimal working conditions.

Mixing Procedure

Mix the Hardener and Resin at the specified mixing ratios; these are determined by which Marine Epoxy Kit you've chosen to use.

Mix with a stir stick for 1 to 3 minutes until mixture is fully blended without strands of unmixed material remaining.
Be sure to thoroughly scrape the bottom and sides of container to ensure all product is mixed completely.
Always use clean and dry tools when mixing epoxy.
For best results, perform this in a climate-controlled space. Marine Epoxy temperatures should never drop below 60°F when mixing.

Three Options to Choose From

UltraClear Marine Epoxy consists of a two-part system—one resin, one hardener. Unlike our other craft resins, there are three types of marine epoxy to choose from, each featuring a different hardener:

Slow Hardener—Designed for structural applications.
- Uses a 5:1 mixing ratio of resin to hardener, measured by volume.
Fast Hardener—Designed for structural applications.
- Uses a 5:1 mixing ratio of resin to hardener, measured by volume.
Clear Hardener—For use as a clear topcoat over the completed structural lamination.
- Uses a 3:1 mixing ratio of resin to hardener, measured by volume.

Choose the one that best fits your needs.

Component Descriptions

Traditional Marine Resin:

This is the resin component included in every UltraClear Marine Epoxy kit, intended for use with any of the three hardener options.

For structural applications—use this with either the Slow or Fast Hardener.
For topcoat applications—use this with the Clear Hardener as a topcoat for a strong, crystal-clear outer appearance once the structure is complete.

Slow Marine Hardener:

Ideal choice for larger lamination builds / projects, and applications requiring more working time and for use in warmer climates.
Recommended for use above 80°F.
Designed for consistent results when used on lamination wooden FRP construction on boat hulls or other structural projects
Used in a 5:1 mixing ratio with Traditional Marine Resin
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: Clear/Light Amber

Fast Marine Hardener:

Ideal choice for applications requiring quicker working times and for use in cooler climates.
Recommended for use between 60-70°F.
Small to medium sized projects and structural applications
Used in a 5:1 mixing ratio with the Traditional Marine Resin
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: Dark Amber

Clear Marine Hardener:

Ideal finish of choice for an UltraClear finish
Use over the Slow or Fast Hardener once your project is completed for a clear finish.
Not designed for structural applications
Used in a 3:1 Mixing Ration with the Traditional Marine Resin
Set time @ 80°F (thin film): 10 hours
Cure time @ 80°F (thin film): 1 to 4 days
Hardener Color: Clear