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FiberWeld Permanent Repair Cast 2x36 Inch - High Strength Adhesive Fiberglass Wrap - Black, 38236

FiberWeld Permanent Repair Cast 2x36 Inch - High Strength Adhesive Fiberglass Wrap - Black, 38236

Q: Would this be useful to pre-emptively reinforce the corners of a suitcase before letting airport baggage handling throw it around?

It's not an appropriate application. This product is a wrap to repair a fracture. I doubt that you could secure it around a corner. Even if you were able to get it to adhere, it wouldn't be durable. It would also be unattractive.

Q: Is the tape flexible when you apply it, or more stiff?

Flexible like tape when applied. Then it hardens

Q: Can this be used to reinforce the inside of a rotocast resin helmet?

Not sure about your application, but my guess is no. Fiberweld is a water-activated fiberglass wrap/strip. For your application, you might have better luck with using a sheet of fiberglass cloth to form into the helmet and then apply fiberglass resin to the cloth to make a reinforced shell.

Q: can you patch a nonwater pipe with a half wrap

Not certain what you are describing as a half wrap. If you only use half of what is indicated, you will compromise the strength of the repair. If it is a very narrow pipe, you might be able to use less but there should be at least 3 "wraps" around the breach for stability and strength.

4.3/5

Product ID: 241362143

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Details

Brand
J-B Weld
Specific Uses For Product
Repair
Material
Plastic
Compatible Material
Rubber
Item Form
Tape

💧Water-activated resin

⏱️15 min full cure time

🛠️1500 PSI bend strength

Description

🛠️ Fix it fast, fix it forever—because your projects deserve steel-level strength.

FINISH LIKE A PRO - Sandable and paintable once cured, blending repairs invisibly into your projects.
ALL INCLUSIVE REPAIR KIT - Comes with gloves and securing bandage—everything you need to fix it right now.
VERSATILE SURFACE ADHERENCE - Bonds seamlessly to rubber, plastic, and more—your go-to fix for diverse repairs.
WORK TIME THAT WORKS WITH YOU - 5-10 minutes of pliability before curing—perfect for precision and speed.
STEEL STRONG BOND IN 15 MINUTES - Activate with water, apply, and watch it harden faster than your coffee break.

The J-B Weld FiberWeld Permanent Repair Cast is a high-strength, water-activated fiberglass wrap that cures in 15 minutes to form a durable, steel-like bond with 1500 PSI bend strength. Ideal for repairing rubber, plastic, and other materials, it offers a 5-10 minute working window and can be sanded and painted after curing. The kit includes gloves and a securing bandage for a complete, professional-grade repair solution.

Specifications

Brand	J-B Weld
Specific Uses For Product	Repair
Material	Plastic
Compatible Material	Rubber
Item Form	Tape
Special Feature	Strong
Color	Black
Item Package Quantity	1
Package Information	Can
Viscosity	Medium to High
Full Cure Time	15 Minutes
Tensile Strength	1500 PSI
Unit Count	3.0 Feet
UPC	043425382368
Global Trade Identification Number	00043425382368
Manufacturer	JB Weld
Model	FIBERWELD 2x36" REPAIR CAST BLACK
Item Weight	2.75 ounces
Product Dimensions	1.5 x 4.94 x 7.87 inches
Item model number	38236
Manufacturer Part Number	38236
Special Features	Strong

Have a Question? See What Others Asked

Would this be useful to pre-emptively reinforce the corners of a suitcase before letting airport baggage handling throw it around?

Is the tape flexible when you apply it, or more stiff?

Can this be used to reinforce the inside of a rotocast resin helmet?

can you patch a nonwater pipe with a half wrap

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Fatima A.

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

3 days ago