---
product_id: 63422117
title: "BOSS 315 (Clear) 100% RTV Silicone Sealant Waterproof/Adhesive Glue - (1/2-oz Squeeze Tube) Perfect Size for Arts & Crafts"
brand: "boss silicone"
price: "€ 14.94"
currency: EUR
in_stock: true
reviews_count: 3
url: https://www.desertcart.ie/products/63422117-boss-315-clear-100-rtv-silicone-sealant-waterproof-adhesive-glue
store_origin: IE
region: Ireland
---

# 100% waterproof 20 min tack-free -40° to 400°F BOSS 315 (Clear) 100% RTV Silicone Sealant Waterproof/Adhesive Glue - (1/2-oz Squeeze Tube) Perfect Size for Arts & Crafts

**Brand:** boss silicone
**Price:** € 14.94
**Availability:** ✅ In Stock

## Summary

> ✨ Seal the Deal with Style!

## Quick Answers

- **What is this?** BOSS 315 (Clear) 100% RTV Silicone Sealant Waterproof/Adhesive Glue - (1/2-oz Squeeze Tube) Perfect Size for Arts & Crafts by boss silicone
- **How much does it cost?** € 14.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/63422117-boss-315-clear-100-rtv-silicone-sealant-waterproof-adhesive-glue)

## Best For

- boss silicone enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Results:** Experience a fast tack-free time of just 20 minutes.
- • **Weather Warrior:** Sun-proof, freeze-proof, and waterproof for all conditions.
- • **Unmatched Versatility:** Adheres to wood, metal, ceramic, vinyl, plastics, and more.
- • **Crafted for Creativity:** Perfect 1/2-oz size for all your arts & crafts projects.
- • **Long-lasting Performance:** UV resistant and never cracks, shrinks, or changes color.

## Overview

The BOSS 315 Clear RTV Silicone Sealant is a versatile, waterproof adhesive designed for arts and crafts. With a quick 20-minute tack-free time and a convenient 1/2-oz size, it adheres to various materials while remaining flexible and UV resistant, ensuring your projects stand the test of time.

## Description

BOSS 315 RTV 100% Silicone rubber adhesive/sealant is a paste-like, one component material which cures to a tough, rubbery solid when exposed to moisture in the air. Since it will not flow of its own weight, this sealant can be applied overhead or on sidewall joints and surfaces without sagging, slumping or running off. It will adhere to clean metal, glass, most types of wood, silicone resins, vulcanized silicone rubber, ceramic, natural and synthetic fiber, as well as painted and many plastic surfaces. BOSS 315 has good resistance to weathering, vibration, moisture, ozone and extreme temperatures. It may be applied in sub-zero weather without loss of extrusion or physical property characteristics. Fully cured BOSS 315 can be used for extended periods at temperatures up to 400°F (204°C).

## Features

- Fast Tack-Free Time 20 minutes, Convenient 1/2-oz size for small arts & crafts projects
- Meets ASTM C-920, VOC Compliant, Service Temperature -40° to 400°F
- Tough Rubber adhesive holds in extra clear transparency that is made from safe and reliable materials. Convenient no-run gel is great for use on wood, metal, ceramic, vinyl, plastics, and more.
- Weatherproof - Sun-proof - Freeze-proof - Waterproof - Remains Flexible
- Never cracks, shrinks, breaks down, changes color, or washes away, UV Resistant!

## Images

![BOSS 315 (Clear) 100% RTV Silicone Sealant Waterproof/Adhesive Glue - (1/2-oz Squeeze Tube) Perfect Size for Arts & Crafts - Image 1](https://m.media-amazon.com/images/I/51HQFAVyR6L.jpg)

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    Dont do it
  

*by T***Y on Reviewed in the United States on January 24, 2019*

I had the same problem, sealant was rock hard and would not come out of the tube.  Had to cut it open and it was all dried out

### ⭐ 1.0 out of 5 stars







  
  
    Outdated and hardened material
  

*by S***. on Reviewed in the United States on December 29, 2018*

I only gave it one star because I had to. Material showed up rick hard and unusable. Had to send it back.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works great!
  

*by W***S on Reviewed in the United States on May 9, 2019*

Awesome.

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**Shop now:** [https://www.desertcart.ie/products/63422117-boss-315-clear-100-rtv-silicone-sealant-waterproof-adhesive-glue](https://www.desertcart.ie/products/63422117-boss-315-clear-100-rtv-silicone-sealant-waterproof-adhesive-glue)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-17*