It has a shelf life of 7 months but anything over 90 days I would do a test because shelf life can vary depending on how it is stored. Heat is not its friend.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Clear Mek Peroxide Catalyst Hardener 4oz Bottle

Clear Mek Peroxide Catalyst Hardener 4oz Bottle

Product ID: 267575393

Details

Brand
Fiberglass
Color
Clear
Item Form
Liquid
Material
mek peroxide
Shape
Flat

⏳1% catalyst ratio for 4 gal resin

⚗️4oz precision dosing

🛠️versatile for marine & automotive

R$312

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered 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 Brazil.

Secure transaction

Description

⚡ Cure with Confidence: The Pro’s Catalyst for Flawless Fiberglass Finishes

BONUS MEASURING KIT - Includes reusable cup & mix guide for effortless, accurate blending
PRECISION 4 OZ BOTTLE - Compact size for controlled, waste-free resin curing
PRO GRADE CONSISTENCY - Ensures reliable, uniform curing every time for professional results
OPTIMIZED 1 MIX RATIO - Cures up to 4 gallons of polyester resin or gelcoat flawlessly
VERSATILE COMPOSITE USE - Perfect for fiberglass repairs, boat building, surfboards & tooling

Fiberglass Supply Depot’s Clear MEKP Peroxide Catalyst Hardener is a 4oz liquid catalyst designed to initiate and control the curing of polyester resins, vinyl ester resins, and gelcoat systems. Trusted by professionals across marine, automotive, and composite fabrication industries, it offers precise dosing with a 1% catalyst ratio that cures up to 4 gallons of resin. The package includes a reusable measuring cup and mix ratio guide, making it ideal for small repairs, prototypes, and hobby projects requiring consistent, high-quality results.

Specifications

ASIN	B08PMVK4DR
Best Sellers Rank	#21,604 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #91 in Commercial All-Purpose Cleaners
Brand Name	Fiberglass Supply Depot
Color	Clear
Customer Reviews	4.6 4.6 out of 5 stars (159)
Grade Rating	Commercial/Industrial
Item Form	Liquid
Item Shape	Flat
Item Weight	4 ounces
Manufacturer	Fiberglass Supply Depot Inc.
Material	mek peroxide
Number of Items	1
Part Number	mek4ozb
Specification Met	True
UPC	819794022743
Unit Count	4 Fluid Ounces

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R$312

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered 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 Brazil.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews