---
product_id: 610701527
title: "900 Moldable Silicone Putty - Black"
brand: "e/fusing"
price: "$72.95"
currency: USD
in_stock: true
reviews_count: 5
category: "E/Fusing"
url: https://www.desertcart.us/products/610701527-900-moldable-silicone-putty-black
store_origin: US
region: United States of America
---

# 100% waterproof seal compatible with glass, metal, plastic 3.3 fl oz moldable silicone 900 Moldable Silicone Putty - Black

**Brand:** e/fusing
**Price:** $72.95
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal it like a pro — don’t let leaks steal your flow!

## Quick Answers

- **What is this?** 900 Moldable Silicone Putty - Black by e/fusing
- **How much does it cost?** $72.95 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/610701527-900-moldable-silicone-putty-black)

## Best For

- e/fusing enthusiasts

## Why This Product

- Trusted e/fusing brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Power:** Compact 3.21 oz tube for on-the-go emergency repairs
- • **Precision Moldability:** Easily shapes to pinhole leaks for a flawless fit
- • **Ultimate Leak Defense:** Waterproof silicone putty that stops air & steam leaks instantly
- • **Multi-Material Mastery:** Seals cracks on glass, metal, plastic, porcelain & rubber
- • **Pro-Grade Reinforcement:** Pairs perfectly with E/Fusing tapes for durable, long-lasting seals

## Overview

MIDSUN E/FUSING 900 is a US-made, black silicone putty designed for quick, reliable sealing of pinhole leaks and cracks in pipes and hoses. Waterproof and compatible with multiple materials, it molds easily and works best when combined with E/Fusing tapes for reinforced, durable repairs.

## Description

MIDSUN E/FUSING 900 is a silicone putty for use in cracks and voids in damaged pipes or hoses. Molds easily into small cracks or pinholes on pipes or rigid hoses. Excellent assistance in sealing air and steam leaks with other E/Fusing tapes.

Review: Buen material - Funciona bien
Review: Mouldeable and waterproof

## Features

- Made in USA
- Mold into pinhole leaks on pipelines to assist in leak sealing
- Use E/Fusing 140 or E/Fusing 330 to wrap and reinforce seal
- Package weight of the Product:3.21 Ounces

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B6JRZQKG |
| Best Sellers Rank | 474,347 in DIY & Tools ( See Top 100 in DIY & Tools ) 4,303 in Sealers |
| Brand | E/FUSING |
| Colour | Black |
| Compatible Material | Glass, Metal, Plastic, Porcelain, Rubber |
| Container Type | Tube |
| Customer Reviews | 4.5 out of 5 stars 216 Reviews |
| Item Form | Putty |
| Item Package Quantity | 1 |
| Item Volume | 3.3 Fluid Ounces |
| Item form | Putty |
| Manufacturer | Midsun Specialty Products |
| Material | Silicone |
| Model Number | 764759690027 |
| Other Special Features of the Product | Waterproof |
| Special feature | Waterproof |
| Specific Uses For Product | Pipe Repair, Leak Sealing |
| Specific uses for product | Pipe Repair, Leak Sealing |
| UPC | 764759690027 |
| Unit Count | 1.0 count |
| Viscosity | Low |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** E/FUSING
- **Specific uses for product:** Pipe Repair, Leak Sealing
- **Material:** Silicone
- **Item form:** Putty
- **Special feature:** Waterproof

## Images

![900 Moldable Silicone Putty - Black - Image 1](https://m.media-amazon.com/images/I/51a5j+cn6ML.jpg)

## Questions & Answers

**Q: Does it become hard once set? Wanting to use as a mother mold**
A: It never sets - it remains soft and pliable. I would use hydrocal for the mother mold or reinforced fiberglass with epoxy.

**Q: Does this cure flexible or rigid?**
A: This product does not cure at all. It remains pliable indefinitely

**Q: Does this putty maintain its shape once molded, like modeling clay, or does gravity cause it to melt back down?**
A: Yes and it was very easy to work with. it did not stick to you hands and you could mold it very easy.

**Q: Wrap around outdoor speaker wire (binding post connection) for additional waterproofing? Want something removable for winter storage of speakers.**
A: This is potentially messy for that application. Try using E/FUSING 112 to wrap wires to protect them from elements.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Buen material
*by R***S on 3 June 2024*

Funciona bien

### ⭐⭐⭐⭐⭐ Mouldeable and waterproof
*by H***N on 8 November 2024*



### ⭐⭐⭐⭐⭐ A little pricey, but saved me a lot of money and difficulties.
*by D***D on 16 September 2023*



## Frequently Bought Together

- 900 Moldable Silicone Putty - Black
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- Zxfuture Pack of 8 White Seal Putty Waterproof Duct Seal Repair Sealing Clay, Quick Mending Mud for Drain Connection, Wall Hole, Air Conditioning Hole

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