Fast Hardener

Faster Cure for Cool Weather & Quick Turnarounds.

Sea•Forge Fast Hardener is a non-blushing Part B hardener designed for use with Sea•Forge Low Viscosity Epoxy Resin. Its faster cure reduces turnaround time for fiberglassing, laminating, bonding, coating, and repairs, especially in cooler working conditions.

Pair with Sea•Forge Low Viscosity Epoxy Resin as part of the Sea•Forge 2:1 Epoxy System.

Why Builders Choose Sea•Forge Fast Hardener

• Faster Cure: Shortens cure and recoat times for projects where faster turnaround is important.
• Non-Blushing Formula: Designed to cure without amine blush, reducing surface preparation between coats.
• Ideal for Cool Conditions: Faster cure helps maintain practical working and cure times as shop and material temperatures decrease.
• Faster Recoat Times: Helps move fiberglassing, coating, and laminating projects through multiple applications more quickly.
• Excellent for Repairs & Smaller Jobs: Well suited to projects where shorter working and cure times are an advantage.
• Strong Adhesion: Creates strong, durable bonds to wood, fiberglass, composites, and properly prepared metals.
• Balanced Strength & Flexibility: Formulated to provide a strong, tough bond with the flexibility needed to accommodate normal movement and stresses in wood, fiberglass, and composite structures.
• Marine Applications: Formulated for boatbuilding, repair, restoration, and composite construction.
• Low VOC: Formulated with low volatile organic compound content.

Sea•Forge 2:1 Epoxy System

• Part A — Epoxy Resin: Clear, low-viscosity resin for coating, bonding, laminating, and fiberglass wet-out.
• Part B — Fast Hardener: Faster curing hardener for cooler conditions, repairs, smaller projects, and applications requiring shorter turnaround times.

Always mix 2 parts Part A Epoxy Resin : 1 part Part B Hardener by volume. Do not alter this ratio.

Primary Applications

Boatbuilding | Cool-Weather Epoxy Work | Fiberglass & Composite Cloths | Vacuum Bagging | Structural Bonding | Filleting | Coating & Saturation | Repairs

How to Use

1. Measure: Mix 2 parts Sea•Forge Low Viscosity Epoxy Resin : 1 part Sea•Forge Fast Hardener by volume. Do not alter this ratio. Use graduated mixing cups for accurate measurement of small or large batches, or use calibrated 2:1 dispensing pumps. Test pumps for accuracy before first use and before mixing a large batch.
2. Mix Thoroughly: Stir the resin and hardener completely, scraping the sides and bottom of the mixing container.
3. Apply: Use mixed epoxy for coating, fiberglass wet-out, laminating, and bonding.
4. For Bonding & Fillets: When thickened epoxy is needed, add the appropriate Sea•Forge filler only after the resin and hardener have been thoroughly mixed.
5. Adjust Cure Speed: Sea•Forge Slow Hardener may be blended with Fast Hardener when additional working time is desired. Maintain the required 2 parts resin : 1 part total hardener by volume ratio.
6. Allow to Cure: Cure time varies with hardener blend, temperature, application thickness, batch size, and working conditions.

Safety & Handling

Wear appropriate protective clothing, chemical-resistant gloves, and safety glasses when mixing and applying epoxy. Avoid skin and eye contact. Work in a well-ventilated area and follow all precautions and first-aid instructions provided on the product label and Safety Data Sheet (SDS).

⚠️ California Proposition 65 Warning: This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Refer to the product label and SDS for applicable chemical information.

Technical Documents: TDS (Technical Data Sheet) | SDS (Safety Data Sheet)