Can you pre-mix this with a quart of non-waxed gelcoat to effectively make it waxed gelcoat? and use as much as you need out of the an with mekp ?

Yes you can do that. If you need to do two coats do the first one with no wax then add your wax to the last coat. That way you don't have to sand in between coats.

how much gelcoat will the 4oz treat

4oz will do 1 gallon of gelcoat. You would generally use 1oz per quart or 4oz per gallon.

can you use this with epoxy resin?

I use this for gelcoat on a bass boat , Gel coat will not cure to a hard finish unless seal from outside air , it will stay tacky, you mix this in with a batch and during the process of curing it comes to the surface and seals it and allows it to harden properly, I dont think you need it with epoxy resin because it hardens without it .

The top of the can is sealed with a metal cap and says to cut this out. What's the best way to do this?

Usually take a little flathead screw driver and poke the lid with it and it will pop out.

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Fiberglass Supply Depot Wax Additive - 4 oz Surfacing Agent for use with Gelcoat and Polyester resins

Product ID: 543974805

Details

Brand
Fiberglass
Item form
Liquid
Item weight
4 Ounces
Recommended uses for product
For Polishing
Specific uses for product
Surface

⏱️Speeds up finishing time

⚗️Compatible with gelcoat & polyester

🛥️4 oz perfect dosage

R1157

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Description

🛠️ Seal the deal with a flawless finish – no tack, all shine!

COMPATIBLE EFFICIENT - Works seamlessly with MEKP catalyst and most polyester resins
FINAL COAT ONLY FORMULA - Use exclusively in top coats to ensure full cure and surface hardness
PRECISION DOSAGE CONTROL - Optimal 4 oz per gallon mix ratio prevents defects like fish eyes
OXYGEN BARRIER TECHNOLOGY - Wax migrates to surface, blocking oxygen for a flawless cure
TACK FREE FINISH EVERY TIME - Eliminates sticky surfaces for smooth sanding and polishing

Fiberglass Supply Depot Wax Additive is a 4 oz liquid surfacing agent designed to be mixed into the final gelcoat or polyester resin coat. It creates a tack-free, fully cured surface by migrating wax to the top layer, blocking oxygen and enabling easy sanding and polishing. Ideal for marine and composite projects, it requires precise dosing (about 4 oz per gallon) and must be used with MEKP catalyst. This additive enhances finish quality, reduces cleanup time, and is trusted by professionals for a smooth, durable surface.

Specifications

ASIN	B077GYBNP1
ASIN	B077GYBNP1
Best Sellers Rank	#115,751 in Sporting Goods ( See Top 100 in Sporting Goods ) #203 in Boat Maintenance Supplies
Brand Name	Fiberglass Supply Depot
Customer Reviews	4.7 4.7 out of 5 stars (380)
Customer reviews	4.7 4.7 out of 5 stars (380)
Is Discontinued By Manufacturer	No
Item Form	Liquid
Item Weight	4 Ounces
Manufacturer	Eclipse
Manufacturer	Eclipse
Number of Items	1
Package Dimensions	15.8 x 9.4 x 8.71 cm; 113.4 g
Recommended Uses For Product	For Polishing, For Paint Protection
Specific Uses For Product	Surface Treatment, Sealant
UPC	819794020329
Unit Count	118.29 Milliliters

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R1157

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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