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J-B Weld 38237 FiberWeld 2 in. W x 36 in. L Automotive Repair Cast Kit, Black
✅ In stock
F
Grade
Analysis Confidence
100%
Price verified Sep 22, 2026 9:34 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰At 96% above its usual rate, this is currently priced higher than what most shoppers have paid.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Amazon.com
Product Details
✓FIBERWELD AUTOMOTIVE REPAIR CAST: A high-strength fiberglass wrap, impregnated with a specially-formulated resin for automotive repairs. When activated by water, the product forms a strong, permanent bond that hardens like steel in 15 minutes. Once cured, FiberWeld is temperature resistant up to 400°F and holds water pressure up to 100 PSI.
✓SOAK IT, WRAP IT, DONE: Once the wrap is dipped in water for 5-7 seconds, FiberWeld Automotive Repair Cast has a working time of about 5 minutes and a cure time of 15 minutes! The product achieves full strength in about 2 hours.
✓PRODUCT FEATURES AND STRENGTH: Once fully cured, J-B Weld FiberWeld Automotive Repair Cast has a temperature resistance of 400°F, holds water pressure up to 100 PSI, and can be sanded and painted!
✓AUTOMOTIVE APPLICATIONS: Radiator & heater hoses, tailpipes & mufflers, oil & transmission lines, vacuum lines, outside mirrors & roof racks, and RV & boat emergency repairs.
✓EVERYTHING YOU NEED: The kit includes a pair of gloves and a 2" x 24" securing bandage!
✓DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
⚙️ Specifications
Brand
J-B Weld
Specific Uses For Product
Repair, Flooring, Masonry, Countertop, Furniture, Wood, Wall Repair, Glass, Table Top Coating
Material
Fiberglass
Item Form
Soakable Solid
Special Feature
Hards like steel, Temperature resistant up to 400°F, Water pressure resistant up to 100 PSI
Color
Black
Item Package Quantity
1
Package Information
Can
Item Volume
7.2 Cubic Inches
Viscosity
High viscosity
Full Cure Time
2 hours