If i used the entire gallon i assume i would use the entire bottle of catalyst. this would be for an art project. what di i add to make it pourable?

Yes 2oz per gallon. You should have about 15 minutes depending on temperature before it starts to gel

Is there wax added in it?

no wax .fast curing. Don't make a big batch... Great stuff, easy to work with.

I am doing a deck repair in my 68’ fiberform yellowstone. can i use epoxy primer over the repair putty and to seal the plywood?

Hi there, Thank you for reaching out. You can only put a coating other than Gelcoat/another polyester Laminating resin over the top of this product when it has been surface cured and prepped. The Polyester Structural repair putty stays tacky to receive other Polyester resin products. You would need to Seal it with Totalboat Polyester Finishing resin/Totalboat Polyester Fairing compound/Totalboat Gelcoat with wax/PVA then prep per primers instructions.

How much area will 1 qt cover?

Honestly it depends on the thickness you need. This is for filling small holes or building up areas that have been damaged, not for laying fiberglass down. It will cure quickly so work in small batches.

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Description

🛥️ Fix it once, fix it strong — TotalBoat’s fiber-reinforced putty keeps your ride seaworthy and sleek!

READY TO USE KITS - Includes MEKP hardener and comes in convenient quart and gallon sizes for projects big and small.
CUSTOMIZABLE WORK TIME - Adjust catalyst levels for 15-20 minutes of smooth, sag-free application tailored to your project pace.
MARINE GRADE WATERPROOFING - Engineered to perform flawlessly above and below the waterline, ensuring lasting durability in harsh environments.
UNMATCHED STRUCTURAL STRENGTH - Long strand fiberglass fibers deliver superior crack and impact resistance for demanding repairs.
VERSATILE MULTI SURFACE BONDING - Bonds fiberglass, wood, metal, and polyester laminates seamlessly—perfect for boats, autos, and more.

TotalBoat Polyester Structural Repair Putty is a premium marine-grade, fiber-reinforced polyester filler designed for high-strength structural bonding and repairs on fiberglass, wood, metal, and composite surfaces. Waterproof and fast-setting, it offers excellent impact resistance and elasticity, ideal for boat hulls, decks, and automotive applications. Supplied with MEKP catalyst, it provides adjustable working time and easy application without sagging, making it a versatile solution for professionals demanding durable, long-lasting repairs.

Specifications

Brand	TotalBoat
Specific Uses For Product	Repair
Material	Resin
Item Form	Putty
Special Feature	High Strength Bonding, Impact Resistant
Color	white
Item Package Quantity	1
Package Information	Can
Item Volume	4 Fluid Ounces
Viscosity	Moderate
Water Resistance Level	Waterproof
Unit Count	1.0 Count
UPC	811932023704
Global Trade Identification Number	00811932023704
Manufacturer	TotalBoat
Item Package Dimensions L x W x H	7.7 x 7 x 6.5 inches
Package Weight	4.22 Kilograms
Brand Name	TotalBoat
Number of Items	1
Part Number	512952
Style	Gallon Kit
Included Components	Repair Putty, Hardener
Size	Gallon Kit

Reviews

B**Y

Great stuff!

I would buy again. Easy to use. No issue, just make sure you are in a well-ventilated area.

12.09.2025

C**L

Goes on smooth, stays put and doesn't run, dries extremely hard!

After I reinforced a hole in the hull with fiberglass and resin, there was still a low spot. I figured it would take forever to keep filling it in with resin, plus the resin is extremely runny so it is hard to get it to stay in the low spot. I came across this putty and out of the can it is extremely workable, not runny, does not sag and stay put. Even mixing in the liquid hardener does not effect it or make it runny. I applied it to the hull and it literally took one coat and evened the low spot out. I mean it goes on so smooth, and you have plenty of time to work with it before it starts to get tacky. The price is very fair compared to other stuff like Bondo which they say you don't want to use for these types of repairs. I have yet to sand it, but it is extremely hard and nothing an orbital sander can't handle. Hope this review helps as I was going back and forth on what fiberglass to use.

15.05.2025

A**S

Great product! Works great! Highly recommend!

30.07.2025

A**R

Easier to work with than I thought it would be

First time using this type of filler.Cure time was predictable. Mixed easily on my board. Spread smoothly. Where I did have some unevenness I was able to fill after initial curingMinimal sanding, great finish. Been over a year out in the weather. No pitting, cracking or shrinkage

11.11.2024

J**8

Filling the gap.

This works great for what I need. A bit difficult in sanding it down a bit but works well in filling the gaps

27.05.2025

R**1

Easy to use

Great strength- easy to sand and shape. Very durable. I found this a very satisfactory and strong repair option

1.06.2025

A**A

High quality

Great filler .. I used it on my center console to cover old holes and this stuff worked great. Dries in about 1 hr and is easy to sand.

31.05.2025

M**3

Good stuff.

This stuff is good. Cures really hard. Mixture ratio is a bit hard to find. I mixed by weight. But once cured it’s hard. Used it for a fiberglass hole repair. It’s harder then the original

18.05.2025

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