I have to repair a fiberglass kayak. What is the best combination of mat and raisin to use? Thanks

350 gsm will work. Most important part of repairing a glass K1 is to roughen the surrounding area. Best done by hand using an old saw blade. Repair from the inside if possible. Roughenning with a power tool leaves too fine a finish. Any good polyester resin will work. Make sure that the glass mat is well saturated and use a cutting roller to get rid of all air bubbles. Apply two coats of glass mat.

hi, i want to add an extra layer of insulation on top of my van roof. could i use this to cover it? would it stick to a metal surface heated by sun?

It will stick fine if you use it in combination with epoxy resin. It will be durable even in harsh conditions. Build it up in layers. It can be sanded and painted as you wish once the epoxy has cured.

Will this work for a skin on a small surfboard?

I used it to create a protective layer on the underside of a large mower deck. The matting is quite coarse stranded which meant it was not very smooth but worked ok for my purpose.Perhaps you would need a thicker gel coat to acheive a smother finish?

Can i use this to strengthen a plaster mould

This begs the question "How do you then get the plug out of the mould?" If the mould is made of plaster, yes it could be used to strengthen it, but if the mould is a flexible rubber used to create plaster casts, then no. it would not work.

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Polycraft 300gsm GRP Fibreglass Chopped Strand Mat, Versatile Use for Mould Shaping, Ideal for DIY Projects, Boat Repairs, Car Surfaces Repairs - 3m x 1m

Product ID: 47956739

Details

Brand
Polycraft ( MB
Item form
solid
Material
fiberglass
Special feature
Good Air Rapid
Specific uses for product
Craft

⏱️rapid wet-through time

🌬️excellent air release

🛠️300gsm high-strength mat

R928

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

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Description

🛠️ Elevate your DIY game with pro-grade fibreglass mastery!

DURABILITY THAT LASTS - 300gsm chopped strand mat delivers exceptional reinforcement and longevity.
SOFT FLEXIBLE HANDLING - Conforms effortlessly to curves and contours for seamless repairs.
SPEEDY SATURATION EFFICIENCY - Rapid wet-through and out time means less waiting, more creating.
BUBBLE FREE FINISH EVERY TIME - Superior air release ensures flawless, professional results.
VERSATILE CRAFTING POWERHOUSE - Perfectly adapts to complex moulds & DIY projects with ease.

Polycraft 300gsm GRP Fibreglass Chopped Strand Mat is a premium, versatile reinforcement material designed for hand lay-up techniques. Its medium bulk and excellent resin absorption enable fast wet-through and bubble-free finishes, making it ideal for mould shaping, boat repairs, car surface fixes, and creative projects. Soft and flexible, it conforms easily to complex shapes, ensuring durable, professional-grade results every time.

Specifications

ASIN	B00GMHOGTQ
Best Sellers Rank	87,067 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 46 in Fiberglass Raw Materials
Brand	Polycraft ( MB Fibreglass )
Colour	White
Compatible Material	unsaturated resins
Container Type	Roll
Country Of Origin	Thailand
Customer Reviews	4.4 4.4 out of 5 stars (129)
Item Form	solid
Item Package Quantity	1
Manufacturer	Polycraft ( MB Fibreglass )
Manufacturer Part Number	YIGIAO
Material	fiberglass
Model Number	QL2440
Other Special Features of the Product	Good Air Release, Rapid Wet Through and Out Time
Specific Uses For Product	Craft
Unit Count	3 square meter
Viscosity Level	Low to Medium
Water Resistance Level	Water Resistant

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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.

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TrustScore 4.5 | 7,300+ reviews

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R928

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

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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