---
product_id: 70945575
title: "Everflex Heat Mate Sealant – High Performance Heat Resistant Silicone Sealant – Waterproof – Low Dirt Pick Up – Permanently Flexible – Black – 295ml"
brand: "everbuild"
price: "€ 24.30"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/70945575-everflex-heat-mate-sealant-high-performance-heat-resistant-silicone-sealant
store_origin: PT
region: Portugal
---

# Waterproof sealant Heat resistant up to 275°C Quick skin time: 20 mins Everflex Heat Mate Sealant – High Performance Heat Resistant Silicone Sealant – Waterproof – Low Dirt Pick Up – Permanently Flexible – Black – 295ml

**Brand:** everbuild
**Price:** € 24.30
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the heat, lock the future! 🔥

## Quick Answers

- **What is this?** Everflex Heat Mate Sealant – High Performance Heat Resistant Silicone Sealant – Waterproof – Low Dirt Pick Up – Permanently Flexible – Black – 295ml by everbuild
- **How much does it cost?** € 24.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/70945575-everflex-heat-mate-sealant-high-performance-heat-resistant-silicone-sealant)

## Best For

- everbuild enthusiasts

## Why This Product

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

## Key Features

- • **Fast Curing Formula:** Skin forms in just 20 minutes, fully cures at 3mm per 24 hours for rapid project completion.
- • **Effortless Application:** Compatible with standard caulking guns and easy to apply with visible black color for precision.
- • **Unmatched Heat Resilience:** Stays flexible from -40°C to 275°C, perfect for extreme environments.
- • **Waterproof & Weatherproof:** Creates a durable, watertight seal that lasts under pressure.
- • **Versatile Industrial Strength:** Ideal for chimneys, heating appliances, and high-temp domestic or commercial use.

## Overview

Everbuild Everflex Heat Mate Sealant is a high-performance silicone sealant engineered to withstand extreme temperatures from -40°C to 275°C. Waterproof and quick-drying, it ensures a permanently flexible, durable seal ideal for chimneys, heating appliances, and other high-temperature applications. Its easy application and industrial-grade reliability make it a must-have for professionals demanding lasting results.

## Description

Everbuild Everflex Heat Mate Sealant – High Performance Heat Resistant Silicone Sealant – Waterproof – Low Dirt Pick Up – Permanently Flexible – Black – 295ml

## Features

- SUPERIOR TEMPERATURE RESISTANCE – Designed to remain permanently flexible in temperatures as high as 275°C and as low as -40°C.
- IDEAL FOR HIGH-TEMPERATURE AREAS – Suitable for use in domestic and commercial chimneys, heating appliances, and more.
- QUICK DRYING – Skin time 20 minutes and fully cures at a rate of 3mm per 24 hours to a waterproof seal, depending on temperature and humidity.
- EASY PREPARATION – Make sure all surfaces are clean, dust and flake-free and dry. It is not suitable for use on porous surfaces like brick, concrete, stone or asphalts, brass, lead, or bitumen.
- SIMPLE TO APPLY – Fit into a standard caulking gun and apply the red silicone sealant directly to prepared surfaces - the colour will make your seals easily identifiable. Also available in black.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sika Everbuild |
| Part Number | EVBHTSBK |
| Product Dimensions | 5 x 5 x 23.01 cm; 30 g |
| Item model number | EVBHTSBK |
| Colour | Black |
| Style | Industrial |
| Material | Silicone |
| Item Package Quantity | 1 |
| Special Features | Waterproof |
| Included Components | 1 x Heat Mate Heat Resistant Silicone |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 30 g |

## Product Details

- **Material:** Silicone
- **Brand:** Everbuild
- **Style:** Industrial
- **Item weight:** 30 Grams
- **Item dimensions L x W x H:** 5 x 5 x 23 centimetres

## Images

![Everflex Heat Mate Sealant – High Performance Heat Resistant Silicone Sealant – Waterproof – Low Dirt Pick Up – Permanently Flexible – Black – 295ml - Image 1](https://m.media-amazon.com/images/I/61KoWRC3-3S.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Questions & Answers

**Q: Is this waterproof**
A: Once used some leftover stuff to seal where the bath joined the tiles , and we had no more leak down the back
Although it's really designed for stoves and flues

**Q: Can it be used to stick the silicone rubber seal onto an oven door**
A: No.

**Q: Is this product flexabull or dos it set hard like putty, as need it to be like silicone seal**
A: Hi, yes it is just like silicone but heat resistant absolutely great. I have a multi fuel Stove & every summer I used to have to replace the fire cement, as with the expansion and contraction over the Winter it all cracks causing smoke leaks & draughts. Just one more job I don't have to do anymore.

**Q: can this be used to fill plasterboard where hole has been cut for flu to go through?**
A: i did and put a first bead of seal smoothed round the flu and pushed into gap between plaster and flu, then once cured put a second bead and smoothed. Works well.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.pt/products/70945575-everflex-heat-mate-sealant-high-performance-heat-resistant-silicone-sealant](https://www.desertcart.pt/products/70945575-everflex-heat-mate-sealant-high-performance-heat-resistant-silicone-sealant)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-28*