---
product_id: 271180370
title: "Plastic/Metal/Oil/Diesel/Petrol Tank Repair Kit Putty"
brand: "j-b weld"
price: "126 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "J B Weld"
url: https://www.desertcart.ro/products/271180370-plastic-metal-oil-diesel-petrol-tank-repair-kit-putty
store_origin: RO
region: Romania
---

# 25 min set time, 1 hr cure Withstands up to 148ºC 900 PSI tensile strength Plastic/Metal/Oil/Diesel/Petrol Tank Repair Kit Putty

**Brand:** j-b weld
**Price:** 126 Lei
**Availability:** ✅ In Stock

## Summary

> 🚗 Fix it once, fix it right—your ultimate leak-stopper!

## Quick Answers

- **What is this?** Plastic/Metal/Oil/Diesel/Petrol Tank Repair Kit Putty by j-b weld
- **How much does it cost?** 126 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/271180370-plastic-metal-oil-diesel-petrol-tank-repair-kit-putty)

## 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

- • **Unmatched Strength:** 900 PSI tensile strength for durable, long-lasting repairs
- • **Rapid Repair Action:** Sets in 25 minutes and fully cures within an hour—get back on the road fast
- • **Post-Cure Workability:** Drill, tap, sand, and paint after curing for a seamless, professional finish
- • **Versatile Application:** Perfect for plastic, metal, oil, diesel, and petrol tank repairs—one kit, endless fixes
- • **Heat Resistant Formula:** Handles extreme temperatures up to 148ºC (300ºF) without breaking down

## Overview

J-B Weld Plastic/Metal/Oil/Diesel/Petrol Tank Repair Kit Putty delivers a powerful 900 PSI tensile strength with a quick 25-minute set time and full cure in just one hour. Engineered to withstand temperatures up to 148ºC, this versatile putty seals leaks and patches holes on a variety of surfaces including plastic, metal, and fuel tanks. Once cured, it can be drilled, tapped, sanded, and painted, making it the go-to solution for professional-grade repairs that last.

## Description

WaterWeld will plug, seal leaks and patch holes or cracks. Ideal for repairing plumbing, fuel tanks, showers, drains, pools, spas, boats and potable water tanks. After curing it can be drilled, tapped, filed, sanded and painted. WaterWeld has a set time of 15-25 minutes and will fully cure in under an hour. WaterWeld is rated at a tensile strength of 900 PSI and will withstand temperatures up to 148ºC (300ºF).

Review: Plastic weld - Very happy with my purchase it sealed the diesel tank which had a hole in it thank you
Review: Works. - Used this to fix a bodged install of a diesel heater in my lorry. They drilled into the tank which unsurprisingly then leaked. 900 for a new tank so tried this. So far so good!

## Features

- Causes serious eye irritation.
- Causes skin irritation.
- Harmful to aquatic life with long lasting effects.
- May cause an allergic skin reaction.
- Toxic to aquatic life with long lasting effects.
- Strength: 900 PSI
- Set Time: 25 Minutes
- Cure Time: 1 Hour
- Cure Colour: Off White

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ECYTSU8 |
| Best Sellers Rank | 6,935 in Automotive ( See Top 100 in Automotive ) 92 in Fillers, Adhesives & Sealants |
| Brand | J-B Weld |
| Customer Reviews | 4.4 4.4 out of 5 stars (151) |
| Date First Available | 6 Aug. 2013 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 60 g |
| Item model number | a83f9773-062a-4398-bb23-04a858a416e9 |
| Manufacturer | J-B Weld |
| Package Dimensions | 18.7 x 9.8 x 2.9 cm; 60 g |
| Special Features | Repair and seal leaks and holes |
| Viscosity | Moyenne |

## Product Details

- **Brand:** J-B Weld
- **Item form:** Paste
- **Material:** Epoxy Resin
- **Special feature:** Repair and seal leaks and holes
- **Specific uses for product:** metal

## Images

![Plastic/Metal/Oil/Diesel/Petrol Tank Repair Kit Putty - Image 1](https://m.media-amazon.com/images/I/51rffVABApL.jpg)

## Questions & Answers

**Q: Will this fix a crack on a heating oil tank?**
A: I used it to repair a corroded sump on a diesel engine in my van 2 1/2 years and 2 mot's later it is still holding . If you clean the crack and degrease it and rough up the area I don't see why it should not work. I assume the tank is metal and not plastic .

**Q: will this fix a leak on a plastic lawnmower tank ? cheers.**
A: Hi thereI used J B weld on a metal diesel tank after cleaning area of all traces of fuel and warmed the tank with a hair dryer before applying the putty. All worked well.  You might want to roughen the plastic around repair area with a coarse file to get a good bond as smooth plastic might prove tricky. All the best.

**Q: Will this work on diesel fuel pipes on a car ?**
A: I don't know the answer but with diesel being a fine oil it creates a film on the surface of metals and plastics making it difficult to get repair substances to adhere.
Hope that this helps.

**Q: Have a air conditioning core with pin hole leak, might this work on copper pipe?**
A: I have used this successfully on steel that is subject to vibration and heat changes, if the copper core is subject to heat then I don't see a problem but am not sure how it will react to lower temperature such as experienced on the cooling side of air conditioning .

## Customer Reviews

### ⭐⭐⭐⭐⭐ Plastic weld
*by M***N on 4 January 2026*

Very happy with my purchase it sealed the diesel tank which had a hole in it thank you

### ⭐⭐⭐⭐⭐ Works.
*by S***P on 27 November 2025*

Used this to fix a bodged install of a diesel heater in my lorry. They drilled into the tank which unsurprisingly then leaked. 900 for a new tank so tried this. So far so good!

### ⭐⭐⭐⭐ Leak
*by J***K on 11 August 2025*

For quick resolution does the job

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**Shop now:** [https://www.desertcart.ro/products/271180370-plastic-metal-oil-diesel-petrol-tank-repair-kit-putty](https://www.desertcart.ro/products/271180370-plastic-metal-oil-diesel-petrol-tank-repair-kit-putty)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-11*