---
product_id: 442845145
title: "FiberWeld Permanent Repair Cast 2x36 Inch - adhesive Fiberglass Wrap - Black, 38236"
brand: "j-b weld"
price: "$41.98"
currency: USD
in_stock: true
reviews_count: 5
category: "J B Weld"
url: https://www.desertcart.us/products/442845145-fiberweld-permanent-repair-cast-2x36-inch-adhesive-fiberglass-wrap-black
store_origin: US
region: United States of America
---

# Water-activated resin Durable black fiberglass wrap Sets rock-hard in 15 mins FiberWeld Permanent Repair Cast 2x36 Inch - adhesive Fiberglass Wrap - Black, 38236

**Brand:** j-b weld
**Price:** $41.98
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it once, fix it forever—wrap your world in strength!

## Quick Answers

- **What is this?** FiberWeld Permanent Repair Cast 2x36 Inch - adhesive Fiberglass Wrap - Black, 38236 by j-b weld
- **How much does it cost?** $41.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/442845145-fiberweld-permanent-repair-cast-2x36-inch-adhesive-fiberglass-wrap-black)

## Best For

- j-b weld enthusiasts

## Why This Product

- Trusted j-b weld brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight & Portable:** Compact 70g wrap fits perfectly in your toolkit or emergency car kit.
- • **Trusted by Pros & DIYers:** Top-rated with 4.4 stars and proven performance on high-value gear.
- • **Steel-Strong Fix in Minutes:** Hardens like steel in just 15 minutes for instant reliability.
- • **Water-Activated Convenience:** No messy mixing—just wet and wrap for a hassle-free application.
- • **Versatile Surface Compatibility:** Bonds permanently to metal, wood, PVC, rubber, and more—your all-in-one repair solution.

## Overview

J-B Weld FiberWeld Permanent Repair Cast is a water-activated fiberglass wrap impregnated with a high-strength resin that hardens like steel in 15 minutes. Ideal for repairing and reinforcing metal, wood, PVC, rubber, and fiberglass surfaces, this durable black wrap is lightweight and portable, making it perfect for emergency fixes on tools, outdoor gear, and vehicle parts. Highly rated and trusted for its fast, permanent bond and versatile use.

## Description

J-B Weld, FiberWeldTM Permanent Repair Cast is a high-strength fiberglass wrap, impregnated with a specially-formulated resin. When activated by water, the product forms a strong, permanent bond that hardens like steel in 15 minutes.

Review: Fab, rock solid fix for a broken handle of a £250 vac.
Review: Carbon fibre bike fork broke, I didn't feel like a DIY carbon fibre repair, and I found this stuff and watched many videos online. It is easy to work with and sets ridiculously strong, I ended up looping electrical tape over it for a neater finish. My bike has been relegated to indoor trainer duties - but I'd be confident riding it at low speeds outdoors, if I really had to in an emergency. Not a bad thing to have in your back pocket, toolkit or car, because who knows when it might come in handy.

## Features

- GREAT FOR - Outdoor/Indoor Furniture, Tool Handles, Yard Equipment, Pipes & Hoses, Sporting & Camping Gear, Preventative Reinforcement
- USE ON - Metal,Most Plastics, Wood, PVC, Fiberglass, Rubber
- Water Activated Fiberglass Wrap

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08B3MKWH9 |
| Best Sellers Rank | #36,415 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #209 in Hardware Sealers |
| Brand | J-B Weld |
| Customer Reviews | 4.4 4.4 out of 5 stars (866) |
| Date First Available | 21 September 2023 |
| Item Weight | 70 g |
| Item model number | 38236 |
| Manufacturer | J-B Weld |
| Manufacturer Part Number | 38236 |
| Model | FIBERWELD 2x36" REPAIR CAST BLACK |
| Product Dimensions | 3.81 x 12.55 x 19.99 cm; 70 g |
| Special Features | Strong |
| Viscosity | Medium to High |

## Product Details

- **Brand:** J-B Weld
- **Item form:** Wrap
- **Material:** Resin
- **Special features:** Strong
- **Specific uses for product:** Repair

## Images

![FiberWeld Permanent Repair Cast 2x36 Inch - adhesive Fiberglass Wrap - Black, 38236 - Image 1](https://m.media-amazon.com/images/I/81Oy1qq6T3L.jpg)

## Questions & Answers

**Q: Would this be useful to pre-emptively reinforce the corners of a suitcase before letting airport baggage handling throw it around?**
A: 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?**
A: Flexible like tape when applied.  Then it hardens

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***A on 24 October 2025*

Fab, rock solid fix for a broken handle of a £250 vac.

### ⭐⭐⭐⭐⭐ Review
*by N***B on 1 December 2024*

Carbon fibre bike fork broke, I didn't feel like a DIY carbon fibre repair, and I found this stuff and watched many videos online. It is easy to work with and sets ridiculously strong, I ended up looping electrical tape over it for a neater finish. My bike has been relegated to indoor trainer duties - but I'd be confident riding it at low speeds outdoors, if I really had to in an emergency. Not a bad thing to have in your back pocket, toolkit or car, because who knows when it might come in handy.

### ⭐⭐⭐⭐⭐ Review
*by P***R on 20 January 2025*

The lever on my recliner broke, and there does not seem to be a way to replace it. I used this repair tape to make it good as new. The wet tape is a little messy but other than that it works great. I have used it for tool handles as well, and they are as strong as new. Excellent product

## Frequently Bought Together

- FiberWeld Permanent Repair Cast 2x36 Inch - High Strength Adhesive Fiberglass Wrap - Black, 38236
- J-B Weld FiberWeld 2” Pipe Repair Cast 2x60 Inch - High Strength Adhesive Fiberglass Wrap - White (38260)
- J-B Weld 8267 SteelStik Steel Reinforced Epoxy Putty Stick - 2 oz.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-06*