System Three Resins for Marine Epoxy, Adhesives, and Coatings
Fisheries Supply carries System Three Resins products for DIY boaters, professional boat builders, and woodworkers. The product range includes general purpose epoxy resins, specialized adhesives, epoxy and resin pumps, and topcoat paint for boat restoration.
System Three Resins Overview
System Three began developing epoxy systems for the marine sector in 1979. The brand's product range has expanded to include resins, adhesives, dispensing pumps, and coatings, with formulations for bonding, sealing, and coating applications.
System Three Product Range
| Product Type | Purpose |
|---|---|
| General purpose epoxy resins | Bonding, sealing, and coating for marine, woodworking, and DIY projects. |
| Specialized adhesives | Adhesive, patch, and repair applications. |
| Epoxy and resin pumps | Dispensing epoxy and resin. |
| Topcoat paint | Topcoat finishing applications. |
Applications and Product Considerations
System Three formulations support work with wood, fiberglass, and metal. Choose the product family around the task, whether bonding components, sealing a surface, applying a coating, or completing a repair.
- Mixing: Review the resin-to-hardener ratio and measurement method for the selected epoxy.
- Curing: Hardener choice affects the time required for the epoxy to set.
- Coloring: Compatible paste pigments or dyes can be added to the epoxy mixture.
- Finishing: Complete curing and surface preparation matter before applying paint or varnish.
Frequently Asked Questions
How do I measure and mix System Three Epoxy?
Most System Three general-purpose epoxies use a 2:1 ratio by volume (or 1:1 depending on the specific product formulation). Liquids should be measured by volume using calibrated containers, while paste formulations are measured by weight. Mix thoroughly for 1 to 2 minutes, scraping the sides and bottom of the mixing vessel to ensure full cross-linking.
How long does System Three Epoxy take to cure?
Cure times depend on hardener selection at a baseline temperature of 77°F (25°C). #1 Fast Hardener provides 15 minutes of working time and is tack-free in 2 hours (min. temp 35°F). #2 Medium Hardener provides 30 minutes of working time and is tack-free in 4–6 hours (min. temp 55°F). #3 Slow Hardener provides 60 minutes of working time and is tack-free in 9 hours (min. temp 75°F). Full physical strength is reached in approximately 3 days.
Can I tint System Three Epoxy with pigments or dyes?
Yes. System Three epoxies can be tinted using compatible paste pigments added to Part A (resin) up to 10% by weight prior to combining with hardener. Universal liquid colorants may also be used up to a maximum of 2% by weight.
How can I prevent bubbles and remove blush from System Three Epoxy?
Mix gently to avoid entraining air. Amine blush is a water-soluble waxy film that forms on the surface of curing epoxy. Wash the cured surface thoroughly with warm water and a scrub pad, then dry and sand before applying subsequent coats or topcoats.
What is the shelf life of System Three Epoxy?
System Three guarantees performance for 3 years from the manufacture date when stored in original sealed containers above 50°F (10°C). Unopened liquid resin has an indefinite shelf life; if Part A crystallizes or turns cloudy due to cold exposure, restore it by warming the container in a hot water bath at 125°F until clear.
Can I apply paint or varnish over cured System Three Epoxy?
Yes. Two-part linear polyurethane (LPU) paints, marine alkyd enamels, and UV-resistant marine varnishes can be applied over fully cured System Three Epoxy once the surface has been washed to remove amine blush and scuffed with sandpaper. Solvent-based lacquers should be avoided due to poor flexibility and adhesion in marine applications.