CONTAINS WAX, CURES TACK-FREE
FOR SURFACE REPAIRS & FINAL COATS
SAND, PAINT OR APPLY GELCOAT
EASY TO USE ON FIBERGLASS, WOOD & METALS
Polyester Finishing Resin
Polyester Finishing Resin
SKU: 14391
Two-part polyester finishing resin for use as a final or finish coat over laminating resin. It contains wax, and cures tack-free to form a hard, clear finish on fiberglass, metal, and wood. Sand, paint, or apply gelcoat upon full cure. Wet sand and buff for a glossy appearance.
Regular price
$35.99 - $67.99
Regular price
$35.99
Sale price
$35.99
Regular price
Unit price
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CONTAINS WAX, CURES TACK-FREE
FOR SURFACE REPAIRS & FINAL COATS
SAND, PAINT OR APPLY GELCOAT
EASY TO USE ON FIBERGLASS, WOOD & METALS
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Description
Polyester finishing resin for building and repairs
Because it contains wax, TotalBoat Polyester Finishing Resin is typically used for one-coat glasswork or as a final, tack-free, sealer coat over tacky polyester laminating resin coats. It cures clear and hard to resist scratches and staining. Wet sand and buff to a glossy finish, or sand, paint, or gelcoat over. Also known as marine fiberglass resin, polyester finishing resin can also be used for any layer in a laminate that needs to be sanded.
Gel time depends on amount of hardener admixed
The following table indicates approximate gel times @ 70°F. Adjust the hardener level to slow down or speed up gel time. Cooler temperatures may require a higher percentage of hardener than warmer temperature conditions.
| Slow Gel Time | Medium Gel Time | Fast Gel Time |
| 20 minutes or more | 15-20 minutes | 10 minutes |
| 1 teaspoon of hardener per quart of laminating resin | 2 teaspoons of hardener per quart of laminating resin | 3 teaspoons of hardener per quart of laminating resin |
Polyester Finishing Resin Details
- Cures to a hard, non-tacky finish that can be sanded, painted, or gelcoated.
- Apply finishing resin over fiberglass, wood, and metal.
- Easy to mix and apply, and sets up well.
- Medium viscosity prevents sagging on vertical surfaces.
- Polyester finishing resin contains wax to allow it to cure properly.
- Hardener: MEKP (methyl ethyl ketone peroxide), included
- Sizes: Available in Quart and Gallon Kits
FREQUENTLY BOUGHT TOGETHER
SPECIFICATIONS
TECHNICAL DATA
APPLICATION DATA
- Substrates: Acceptable Substrates: Polyester resin*, TotalBoat Polyester Fairing Compound*, previously gelcoated surfaces*, TotalBoat Polyester Structural Repair Putty*, metals (that have been ground or heavily sanded to a bare, shiny finish, before they have a chance to oxidize at all – this will vary depending on the metal), wood substrates sanded to a rough surface
- *Substrates Notes: TotalBoat Polyester Resin can be applied directly to any catalyzed, uncured polyester resin-based products. Any cured polyester resinbased products must be dewaxed and any surface contaminants removed, then sanded.
- Unacceptable Substrates: Do not apply Polyester Finishing Resin to unknown composite substrates, cured or uncured epoxy substrates, epoxy fairing materials, plastics, glass, vinyl ester resins, ceramics, masonry, or concrete.
- Catalyzation Percentage: 1% MEKP, 9% Active (7-8 drops of MEKP per ounce)
- Application Method: Brush, Roller, Plastic Spreader
- Application Temperature/RH: 50-95°F (70-85°F is ideal for a proper cure), relative humidity 0-90%
- Working Time & Gel Time: Varies by mass and application thickness.
- Colorants/Tints: Colorants and tints are not commonly added, but can be added at a small percentage if they are compatible with polyester resin.
- Mold Release Agents: Mold release paste wax, PVA (polyvinyl alcohol)
PHYSICAL DATA
- Resin Color: Blue
- Cured Color: Clear/buff
- Catalyst: MEKP (methyl ethyl ketone peroxide), included; The acceptable range of catalyst is 1-2.2% based on ambient conditions and required working time. DO NOT use more or less catalyst with TotalBoat Polyester Resin products.
- Coverage (sq ft/gal): 12.8 @ 1/8"; 25.7 @ 1/16"; 51.3 @ 1/32:; Coverage estimates do not include any material wasted from application, which is generally 10-15%.
- Shelf Life: Six months from date of manufacture
THINNER, PREP & CLEANUP SOLVENTS
- Thinner: Do not thin this product.
- Surface Prep Solvent: Acetone
- Cleanup Solvent: Acetone. Once cured, the product must be removed mechanically.
HOW IT COMPARES
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Polyester Finishing Resin
- Best for:
- Substrates:
- Color:
- Application method:
- Catalyst/percentage:
- Mold release agents:
- Contains an air dry agent?
- Application temperature/RH:
- Working time:
- Gel time:
- Thinner:
- Cleanup:
- Coverage:
- Units of measure:
- THIS ITEM
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Polyester Finishing Resin
- Best for: Final or finish coat over laminating resin
- Substrates: Polyester resin, TotalBoat Polyester Fairing Compound, previously gelcoated surfaces, TotalBoat Polyester Structural Repair Putty, metals (that have been ground or heavily sanded to a bare, shiny finish, before they can oxidize, and wood substrates sanded to a rough surface
- Color: Blue
- Application method: Brush or Roll
- Catalyst/percentage: 1% MEKP, 9% active (7-8 drops of MEKP per ounce)
- Mold release agents: Mold release paste wax, PVA (polyvinyl alcohol)
- Contains an air dry agent? Yes
- Application temperature/RH: 50-95°F (70-85°F is ideal for a proper cure); 0-90% RH
- Working time: Varies by mass and application thickness
- Gel time: Varies by mass and application thickness
- Thinner: Do not thin this product.
- Cleanup: Acetone. Once cured, it must be removed mechanically.
- Coverage: Approximately 12.8 sq ft/gal @ 1/8"; 25.7 sq ft/gal @ 1/16"; 51.3 sq ft/gal @ 1/32". Estimates do not account for waste.
- Units of measure: Quart and Gallon (includes MEKP catalyst)
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Polyester Laminating Resin
- Build coat resin for laminating & repairs
- Polyester resin, TotalBoat Polyester Fairing Compound, previously gelcoated surfaces, TotalBoat Polyester Structural Repair Putty, metals (that have been ground or heavily sanded to a bare, shiny finish, before they can oxidize, and wood substrates sanded to a rough surface
- Blue
- Brush or Roll
- 1% MEKP, 9% active (7-8 drops of MEKP per ounce)
- Mold release paste wax, PVA (polyvinyl alcohol)
- No
- 50-95°F (70-85°F is ideal); 0-90% RH
- Varies by mass and application thickness
- Varies by mass and application thickness
- Do not thin this product.
- Acetone. Once cured, it must be removed mechanically.
- Approximately 12.8 sq ft/gal @ 1/8"; 25.7 sq ft/gal @ 1/16"; 51.3 sq ft/gal @ 1/32". Estimates do not account for waste.
- Quart and Gallon (includes MEKP catalyst)
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Gelcoat
- Boat building, repairs and layups
- Polyester resin, TotalBoat Polyester Fairing Compound, previously gelcoated surfaces, TotalBoat Polyester Structural Repair Putty, TotalBoat TotalProtect, and TotalBoat 2-Part Epoxy Primer. See Technical Data Sheet for details.
- White, Light Gray, Neutral
- Brush, Roll, or Spray
- 2% MEKP, 9% active (14-16 drops of MEKP per ounce, or 2 teaspoons per pint of gelcoat)
- Mold release paste wax, PVA (polyvinyl alcohol)
- Available with and without wax
- 50-95°F (70-80°F is ideal), 0-90% RH
- 10-15 minutes (2% catalyst @ 77°F, 1 ounce)
- 8-12 minutes (2% catalyst @ 77°F, 1 ounce)
- Styrene
- Acetone. Once cured, it must be removed mechanically.
- Approximately 12.8 sq ft/gal @ 1/8"; 25.7 sq ft/gal @ 1/16"; 51.3 sq ft/gal @ 1/32". Estimates do not account for waste.
- Quart and Gallon (includes MEKP catalyst)
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ADDITIONAL PRODUCT INFORMATION
WHAT MOST PEOPLE ASK
FREQUENTLY ASKED QUESTIONS
-
What is the difference between laminating resin and finishing resin?
A laminating resin contains no wax and the surface remains tacky so the layers of resins will bond better during laminating. A finishing resin contains wax to create a seal so the resin fully hardens and isn’t tacky. It’s meant to be used as a final or finishing coat over laminating resin. -
What is finishing resin used for?
Because it contains wax, the finishing resin is typically used for one-coat glasswork or as a final, tack-free, sealer coat over tacky polyester laminating resin coats. It cures clear and hard to resist scratches and staining. -
Does the finishing resin “cure” the laminating resin and how many coats are needed to seal it?
Yes, it will cure on its own. Finishing resin contains wax, which enables the resin to cure. Laminating resin does not contain wax, so it will not cure. When you are done building up layers, you will need to apply a coat of finishing resin. One good complete coat is all you need to cure the previous laminating layers. -
How much does the finishing resin shrink?
All polyester resins shrink slightly. Depending on your project, the odds are high that it is negligible and won’t affect the outcome. Epoxy resins shrink less. -
What is the shelf life of finishing resin once opened?
The shelf life is about 6 months to 1 year. To ensure maximum stability and maintain optimum resin properties, resins should be stored in closed containers at temperatures below 77°F, and away from heat sources and sunlight. -
What is the working time for this product?
The gel time depends on the temperature during the time you are using it and how much hardener you use. Adjust the hardener level to slow down or speed up gel time. Cooler temperatures may require a higher percentage of hardener than warmer temperature conditions. At 70 degrees F, one teaspoon of hardener per quart of resin will give you about 20 minutes to gel time, 2 teaspoons will give 15-20 minutes and 3 teaspoons will give about 10 minutes.
WARNING: This product can expose you to chemicals including styrene, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov