---
product_id: 5230133
title: "Smooth-On SIL-Poxy™ Rubber Silicone Adhesive, 0.3 oz Tube – Flexible RTV Silicone Glue for Silicone Rubber Repair & Bonding, Strong Waterproof Sealant (Packaging May Vary)"
brand: "smooth-on"
price: "S$63"
currency: SGD
in_stock: true
reviews_count: 13
category: "Smooth On"
url: https://www.desertcart.sg/products/5230133-smooth-on-sil-poxy-rubber-silicone-adhesive-0-3-oz
store_origin: SG
region: Singapore
---

# Waterproof & weatherproof Flexible, high-elongation bond 0.3 oz precision tube Smooth-On SIL-Poxy™ Rubber Silicone Adhesive, 0.3 oz Tube – Flexible RTV Silicone Glue for Silicone Rubber Repair & Bonding, Strong Waterproof Sealant (Packaging May Vary)

**Brand:** smooth-on
**Price:** S$63
**Availability:** ✅ In Stock

## Summary

> 🦾 Seal the deal with strength and flexibility that lasts!

## Quick Answers

- **What is this?** Smooth-On SIL-Poxy™ Rubber Silicone Adhesive, 0.3 oz Tube – Flexible RTV Silicone Glue for Silicone Rubber Repair & Bonding, Strong Waterproof Sealant (Packaging May Vary) by smooth-on
- **How much does it cost?** S$63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/5230133-smooth-on-sil-poxy-rubber-silicone-adhesive-0-3-oz)

## Best For

- smooth-on enthusiasts

## Why This Product

- Trusted smooth-on brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Weatherproof Confidence:** UV, moisture, and temperature resistant—perfect for outdoor or high-stress environments where failure is not an option.
- • **Silicone Bonding Mastery:** Engineered specifically to bond silicone to silicone and diverse materials like plastics, ceramics, and fabric—no compromises.
- • **All Silicone Types Compatible:** Works flawlessly with both tin-cure and platinum-cure RTV silicones, making it your go-to for any silicone repair or creation.
- • **Pro-Grade Repair & FX Essential:** Trusted by artists and pros for mold repairs, prosthetics, animatronics, and special effects—because your craft deserves the best.
- • **Unmatched Flexibility & Strength:** Creates a durable, stretchable seal that moves with your project—no cracks, no breaks, just seamless resilience.

## Overview

Smooth-On SIL-Poxy™ is a professional-grade, flexible RTV silicone adhesive in a convenient 0.3 oz tube, designed for strong, waterproof bonding of silicone to silicone and other materials. It offers high elongation without cracking, cures in 24 hours, and withstands UV, moisture, and temperature extremes—ideal for repairs, moldmaking, and special effects applications.

## Description

Buy Smooth-On SIL-Poxy™ Rubber Silicone Adhesive, 0.3 oz Tube – Flexible RTV Silicone Glue for Silicone Rubber Repair & Bonding, Strong Waterproof Sealant (Packaging May Vary): Molding & Casting - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Perfect for my silicone mermaid tail - I use this on my silicone mermaid tail and it worked FANTASTIC!! Waterproof, quality adhesive, allows flexibility, and highly durable. The color works great in small areas as it's clear
Review: Impressive - If you've ever needed to glue silicone together such that it is stretchy and strong, this is the one. I fully expected this to break on the seam or have a nasty hard spot. I was impressed that it was strong, didn't catch the eye, was super simple to apply and use, and fully connected and sealed the silicone test pieces I made to experiment with this.

## Features

- MADE FOR SILICONE BONDING - Specially formulated to bond silicone to silicone and other materials including plastics, ceramics, plaster, and fabric.
- STRONG & FLEXIBLE HOLD - Creates a durable, high-elongation bond that remains flexible without cracking—ideal for moving or stress-prone parts.
- COMPATIBLE WITH ALL SILICONE TYPES - Works with both tin-cure and platinum-cure RTV moldmaking silicones for versatile use across projects.
- WEATHER, MOISTURE & UV RESISTANT - Cured adhesive withstands harsh conditions, including water exposure, sunlight, and high temperatures.
- IDEAL FOR REPAIRS & FX APPLICATIONS - Perfect for fixing torn silicone molds, prosthetics, special effects, and animatronics projects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IRC1YI0 |
| Best Sellers Rank | #17,023 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #171 in Sculpture Molding & Casting Products |
| Brand Name | Smooth-On |
| Color | White |
| Compatible Material | Ceramic, Glass, Metal, Plastic, Rubber |
| Container Type | Tube |
| Customer Reviews | 4.5 4.5 out of 5 stars (551) |
| Full Cure Time | 24 Hours |
| Item Form | Gel |
| Item Package Quantity | 1 |
| Item Weight | 0.02 Pounds |
| Manufacturer | Smooth-On, Inc. |
| Material Type | Rubber,Silicone |
| Model | 1 |
| Other Special Features of the Product | Strong |
| UPC | 751635953109 |
| Unit Count | 3.0 Ounce |
| Viscosity | Low |
| Volume | 90 Milliliters |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Smooth-On
- **Color:** White
- **Item Form:** Gel
- **Material:** Rubber,Silicone
- **Special Feature:** Strong

## Images

![Smooth-On SIL-Poxy™ Rubber Silicone Adhesive, 0.3 oz Tube – Flexible RTV Silicone Glue for Silicone Rubber Repair & Bonding, Strong Waterproof Sealant (Packaging May Vary) - Image 1](https://m.media-amazon.com/images/I/61R8TEUpAeL.jpg)

## Questions & Answers

**Q: Will it fix the tear in my fleshlight?**
A: No. It will not bond TPE> It is for silicone only.

**Q: how to save prolong Opened shelf life?  Best way to store?  Since its really expensive.**
A: The best way to prolong the shelf life is to store at room temperature - 73F, 23C - in an air tight container, with the cap fully closed.

**Q: i have a flexible silicon tablet case... can one use this to stick a thin metel sheet to it ?**
A: This is about the only thing that will bond to silicone, so yes. I'd use a fine grit on the metal first to provide a better bonding surface.

**Q: Can something be added to accelerate the cure? I heard a catalyst could be added but I don’t know which.**
A: personally I never heard of this so I would contact "Smooth-Inc" themselves and ask them cuz know alot more. just make sure you tell them exactly what your doing with all the details.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for my silicone mermaid tail
*by S***T on March 9, 2026*

I use this on my silicone mermaid tail and it worked FANTASTIC!! Waterproof, quality adhesive, allows flexibility, and highly durable. The color works great in small areas as it's clear

### ⭐⭐⭐⭐⭐ Impressive
*by R***R on March 24, 2026*

If you've ever needed to glue silicone together such that it is stretchy and strong, this is the one. I fully expected this to break on the seam or have a nasty hard spot. I was impressed that it was strong, didn't catch the eye, was super simple to apply and use, and fully connected and sealed the silicone test pieces I made to experiment with this.

### ⭐⭐⭐⭐⭐ A must-have for silicone props and masks
*by J***J on November 3, 2025*

Strong! I had a tear in one of my silicone hand, and this stuff makes it like it never happened. A must-have for silicone props and masks.

## Frequently Bought Together

- Smooth-On SIL-Poxy™ Silicone Rubber Adhesive - 3 Ounce Tube
- Smooth-On Silc Pig™ Color Pigments for Silicone, 9-Pack Sampler
- THI-VEX - Thixotropic Agent for Thickening Smooth-On Silicone Rubbers - 1 Ounce Bottle

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**Shop now:** [https://www.desertcart.sg/products/5230133-smooth-on-sil-poxy-rubber-silicone-adhesive-0-3-oz](https://www.desertcart.sg/products/5230133-smooth-on-sil-poxy-rubber-silicone-adhesive-0-3-oz)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-04-22*