• TotalBoat Polyester Structural Repair Putty 1 Quart
  • TotalBoat Polyester Structural Repair Putty, MEKP mix and use
  • TotalBoat Polyester Structural Repair Putty being applied
  • TotalBoat Polyester Structural Repair Putty on a boat
  • TotalBoat Polyester Structural Repair Putty 1 Gallon
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FOR HIGH-STRENGTH BONDING & REPAIRS

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EASY TO SPREAD, RESISTS SAGGING

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SETS FAST, WATERPROOF

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NO SHRINKING OR CRACKING

Polyester Structural Marine Repair Putty

Polyester Structural Marine Repair Putty

SKU: 512951
2-part, high-strength, fibrous polyester structural bonding and marine repair putty contains long strand milled glass fibers for strength and dimensional stability. Use above or below the waterline. MEKP catalyst included.
$42.99 - $97.99
Size: Quart Kit
$42.99
$42.99
Free Shipping On All Orders
Security Icon

FOR HIGH-STRENGTH BONDING & REPAIRS

Security Icon

EASY TO SPREAD, RESISTS SAGGING

Security Icon

SETS FAST, WATERPROOF

Security Icon

NO SHRINKING OR CRACKING
View full details
Description

Superior bonding strength and elasticity

TotalBoat Polyester Structural Marine Repair Putty is a tough, resilient resin mixed with long strand milled glass fibers to provide resilience, maximum impact resistance and elasticity so it won’t crack as it ages. It’s ideal for marine applications where high-strength structural bonds are critical, including:

  • Bonding the deck to the hull
  • Bonding stringers to the hull
  • Bonding the liner to the hull
  • Bonding and filleting bulkheads
  • Tabbing in the fittings

Versatile putty with a wide range of uses

This general-purpose marine structural bonding adhesive can also be used to join & fillet fiber-reinforced plastic parts, and bond dissimilar materials such as metal and wood. In addition to bonding, TotalBoat Polyester Structural Repair Marine Putty can be used for filling larger voids and cracks in composites, radius forming, and fabricating composite parts. Its high strength and versatility make this fast-setting structural adhesive, filler, and repair compound a must for any composites shop.

Polyester Structural Repair Putty Details

  • 2-component polyester structural bonding adhesive for polyester laminates
  • High-strength adhesion for marine bonding, bedding, and structural filling
  • Excellent bonding strength and impact resistance
  • Use above or below the waterline on FRP composites, core materials, and wood.
  • Easy to mix & apply.
  • Spreads smoothly, no sagging.
  • Radius forming is fast and easy.
  • Can be built up quickly and holds its shape well while curing.
  • No shrinking or cracking, even in large applications.
  • Fast-setting and waterproof
  • Allows the option of using an air dry agent, if desired.
  • Non-staining
  • Catalyze with 1-2% MEKP. Adjust catalyst to easily control working time for your conditions.
  • Sizes: Quart Kit, Gallon Kit. MEKP catalyst is included.
  • IMPORTANT: TotalBoat Polyester Structural Repair Putty will not cure in air, and requires overcoating with an air dry material such as PVA (polyvinyl alcohol), paraffin wax additive, polyester finishing resin with wax, gelcoat with wax, or TotalBoat Polyester Fairing Compound, to achieve a proper cure.

Important Safety Precautions

Always wear protective clothing and equipment to protect your eyes, skin, and lungs when working with TotalBoat Polyester Structural Repair Putty. Personal protective clothing should include appropriate protective gloves, safety glasses or goggles, a proper respirator, and a proper apron or similar protective clothing. Keep away from heat, hot surfaces, sparks, open flames, and other ignition sources. No smoking. Only use outdoors or in a well-ventilated area. Store in a cool, well-ventilated place (below 75°F). Do not handle until all safety precautions have been read and understood.

FREQUENTLY BOUGHT TOGETHER

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SPECIFICATIONS

TECHNICAL DATA

APPLICATION DATA
  • Application Method: Spreader/Trowel
  • Application Temperature/RH: 50-95°F, relative humidity 0-90%
  • Catalyst: Catalyze with 1-2% MEKP, based on mass, ambient conditions, and desired working time. More catalyst will shorten working time, but will maintain working time at cooler temperatures.
  • Working Time: For a 100g mass, catalyze with 1% MEKP for approximately 15-20 minutes of working time at 70°F (14 drops of MEKP catalyst per ounce of Polyester Structural Repair Putty).
  • Cure Time: Dependent on temperature, catalyst amount, and mass of Polyester Structural Repair Putty. For example, cure time will be 20-30 minutes for 100g mass catalyzed with 1% MEKP @ 77°F.
  • Cure Methods (not included with purchase): Air Dry: Paraffin wax (4 oz. of wax per gallon of putty); polyvinyl alcohol; Vacuum Method: Vacuum bag
  • IMPORTANT: This high-strength polyester putty is engineered for structural bonding, filling, & fairing, not for cosmetic fairing. For repairs requiring a fine finish, use TotalBoat Polyester Fairing Compound over cured Polyester Structural Repair Putty. Allow the Polyester Fairing Compound to cure, then sand to achieve an extremely smooth surface ready for gelcoat or paint.
PHYSICAL DATA
  • Color: Blue
  • Material Consistency: Smooth Putty
  • Smell/Scent: Styrene
  • Filler Materials: Milled glass fibers
  • Shelf Life/Stability: Approximately 3-4 months (can be longer, depending on storage conditions). Keep container closed tightly, and store in a cool (below 75°F), well-ventilated place. Polyester resins have a limited shelf life and will, over time, harden in the container without the addition of catalyst. Shelf life is dependent on a number of factors such as product formulation and storage conditions. As a general rule, the shelf life for uncatalyzed polyester resins should be up to 6 months when stored in dry, cool conditions below 70°F. Warm to above 60°F before use.
PREP & CLEANUP SOLVENTS
  • Surface Prep Solvent: Acetone
  • Cleanup Solvent: Before cured, clean up with acetone. Once cured, the product must be removed mechanically.
HOW IT COMPARES
  • TotalBoat Polyester Structural Repair Putty 1 Quart

    Polyester Structural Marine Repair Putty

  • Best for:
  • Composition:
  • Substrates:
  • Mix ratio:
  • Mixed/cured color:
  • Application methods:
  • Application temperature/RH:
  • Working time:
  • Sandable time:
  • Finish/topcoat with...
  • UV resistant?
  • BPA free?
  • Units of measure:
  • THIS ITEM
  • TotalBoat Polyester Structural Repair Putty 1 Quart

    Polyester Structural Marine Repair Putty

  • Best for: Joining and filleting fiber-reinforced plastic (FRP) parts, bonding dissimilar materials such as metal and wood, radius forming, filling larger voids and cracks in composites, and fabricating composite parts
  • Composition: Polyester resin-based repair putty
  • Substrates: FRP composites, core materials, wood
  • Mix ratio: Add 1-2% MEKP catalyst (included) to repair putty.
  • Mixed/cured color: Blue
  • Application methods: Spreader, Trowel
  • Application temperature/RH: 50-95°F; 0-90% RH
  • Working time: For a 100g mass, catalyze with 1% MEKP for approximately 15-20 minutes of working time at 70°F (14 drops of MEKP catalyst per ounce of structural repair putty).
  • Sandable time: For applications where this product will not be laminated over, a polyester resin air dry solution can be added at the rate of 1 ounce per quart of putty before catalyzing.
  • Finish/topcoat with... Gelcoat with wax, Polyester Finishing Resin
  • UV resistant? No
  • BPA free? No
  • Units of measure: Quart Kit, Gallon Kit
  • TotalBoat Polyester Fairing Compound 1 Gallon

    Polyester Fairing Compound

  • Fairing fiberglass decks and hulls (above the waterline only); cosmetic filling on composite surfaces to repair shallow dings, cracks, dents, and gouges; repairing fiberglass parts, molds, and plugs; filling print-through or porosity on composite surfaces; fairing joints in sheet metal
  • Polyester resin-based fairing compound
  • Fiberglass, gelcoat, composites, sheet metal
  • For a proper cure, add 1-2% MEKP catalyst (included) to fairing compound.
  • Off White
  • Spreader, Trowel
  • 50-95°F; 0-90% RH
  • Variable. At 77°F, adding 14-16 drops of MEKP to one ounce of TotalBoat Polyester Fairing Compound will provide a working time of 10-15 minutes, and will cure in 20-30 minutes.
  • Depends on temperature, amount of catalyst, and mass of fairing compound. Example: 20-30 minutes @ 77°F for a 100g mass catalyzed with 1% MEKP.
  • For UV protection, TotalBoat Polyester Fairing Compound must be finished with gelcoat, or primed and painted. For underwater applications where this fairing compound may be exposed to water, always barrier coat with TotalBoat TotalProtect, to prevent water intrusion.
  • No
  • No
  • Quart Kit, Gallon Kit
  • TotalBoat TotalFair Epoxy Fairing Compound 2 Pint Kit

    TotalFair Epoxy Fairing Compound

  • Reshaping, filling, fairing for boat building and repairs
  • Epoxy-based fairing compound
  • Fiberglass, wood, aluminum, steel, and previously applied epoxy products or two-component urethanes in good condition
  • 1A:1B
  • Green
  • Spreader, Trowel
  • 50-100°F
  • 150g mass, minimum - 15-20 minutes @ 90°F; 30 minutes @ 70°F; 45-60 minutes @ 50°F
  • 3 hours @ 90°F; 6-8 hours @ 70°F; 12 hours @ 50°F
  • Paint, primer, epoxy primer, or more TotalFair. DO NOT apply gelcoat directly to TotalFair. It will not cure properly. Before applying gelcoat, overcoat TotalFair with an epoxy barrier coat or epoxy surfacing primer.
  • No
  • No
  • 2 Pint Kit, 2 Quart Kit, Gallon Kit
  • TotalBoat FixWood Wood Repair Epoxy Putty 2 Quart Kit

    FixWood Wood Repair Epoxy Putty

  • High-strength, waterproof, permanent repairs to rotted or damaged wood
  • Epoxy-based putty
  • Wood
  • 1A:1B
  • Tan
  • Shape by hand or using tools.
  • 50-100°F
  • 30-35 minutes @ 72°F
  • Less than 6 hours @ 72°F
  • Stain it or coat it with 1-part or 2-part polyurethane paint or varnish.
  • No
  • No
  • 2 Pint Kit, 2 Quart Kit
WHAT MOST PEOPLE ASK

FREQUENTLY ASKED QUESTIONS

  • What applications is the Polyester Structural Marine Repair Putty most appropriate for?

    This general-purpose marine repair putty can be used to join and fillet fiber-reinforced plastic parts, and bond dissimilar materials such as metal and wood. In addition to bonding, Polyester Repair Putty can be used for filling gaps, holes, and cracks in composites, radius forming, and fabricating composite parts. It can be shaped and sanded after curing. However, it is not intended for repairs that need to tolerate significant amounts of flex, contraction, or expansion.

  • What should I know before choosing this putty?

    This high-strength polyester putty is engineered for structural bonding, filling, and fairing, not for cosmetic fairing. For repairs requiring a fine finish, use TotalBoat Polyester Fairing Compound over cured Polyester Structural Repair Putty. Allow Fairing Compound to cure, then sand to achieve an extremely smooth surface ready for gelcoat or paint.

  • Will it cure by air drying?

    Polyester Structural Repair Putty will not cure in air and requires overcoating with an air-dry material such as PVA (polyvinyl alcohol), paraffin wax, polyester resin with wax, or gelcoat with wax in order to effect a proper cure.

  • What is the temperature range Polyester Repair Putty may be used in?

    Do not use this product in cool weather. We recommend working in temps 60-90°F and 0-90% RH. Do not apply when rain, dew, or other contaminants may be present or affect the cure.

  • How long does it take to cure?

    The cure time of Polyester Repair Putty is dependent on temperature, catalyst amount, and mass of Polyester Structural Repair Putty. For example, the cure time will be 20-30 minutes for 100g mass catalyzed with 1% MEKP @ 77°F. Small, thin repairs will cure faster. For larger repairs, applying in several thin layers will prevent sagging.

  • How much catalyst should I add?

    For a 100g mass, catalyze with 1% MEKP for approximately 15-20 minutes of working time at 70°F (14 drops of MEKP catalyst per ounce of Polyester Structural Repair Putty).

  • Can you apply gelcoat over it?

    Yes! Gelcoat with wax will seal the seal putty so it fully hardens.

  • What is the shelf life of Polyester Repair Putty?

    As a general rule, the shelf life for uncatalyzed polyester resins should be up to 6 months when stored in dry, cool conditions below 70°F. Warm to above 60°F before use.
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