10 Best Heat Resistant Silicone in The UK

Last updated on 12/08/2025

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Best Choice

9.9

Exceptional

TITANIUM PRO

2 x High Temperature Silicone Sealant Heat Resistant to 1500°C, Flues, Stoves, Glass

Why We Love It

Temperature resistance to 1500ᵒC.
Adheres to multiple surfaces.
Odorless and ready-to-use.

Main Highlights

After the final solidification, slowly heat the sealant up to +250 °C. As the result of heating, the mass will turn dark grey and become extra-hard .
Temperature resistance: up to 1500 ᵒC
Colour: Dark Grey (Black on tube)
Suitable on natural stones. Insulation of joints and filling of cracks in chimneys, ovens, fireplace and stoves. Adheres to metal, stone, brick and concrete
Odorless and ready to use, this flexible, halogen free silicone sealant is heat resistant to 1500ᵒC

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

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Why We Love It

Remains flexible in extreme temperatures.
Ideal for high-temperature areas.
Quick drying and waterproof.

Main Highlights

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.

RZCOMP Silicone Draining Mat,Silicone Dish Drying Mat Non-Slip Sink Drainer Mat,No-Spill Mat & Heat Resistant Folding Draining Board Mat for Kitchen Counter,Sink (Black)

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Why We Love It

Faster drying saves time.
Easy to clean and maintain.
Space-saving and versatile design.

Main Highlights

【FASTER DRYING and EASY TO CLEAN】The silicone dish drying mat for kitchen counter features a raised waterdrop shape design,providing enhanced ventilation and water drainage.The raised stripe pattern on the surface of the drying pad accelerates drainage and air circulation,promoting rapid evaporation of moisture and keeping the countertop dry and tidy at all times.Unique anti slip texture prevents dishes from shifting during drying,making use more reassuring.
【Premium Material】Our draining board mats is made of high quality food grade silicone.Non-toxic, BPA-free,prevents the growth of germs,mold and mildew.It is safe to dry your dishes,ensuring worry free daily use and protecting the health of family members.The unique wide grooves design not only increases airflow for faster drying but also inhibits the growth of mold and mildew and make it easy to wipe.
【Drain Lip Design】Featuring unique ridges and a specially designed lip,this mat allows water to be easily removed and drained directly into the sink.The flexible mat is an excellent alternative if you want to eliminate the normal type of dish drainer which takes up a lot of space.It also can be easily rolled away into the cupboard if you need more worktop space.
【Heat-Resistant Surface Protection】This heat-resistant mat with stands temperatures up to 230 °C/446 °F,serving as both a dish drying pad and a barrier for hot pots and pans.The non-slip mat protects your kitchen counter, eliminating the need for separate trivets or hot pot holders.
【Save Space and Easy to Storage】Loads of area to place crockery,pans,glasses and cutlery and leave until they dry.The flexible & soft material enable you to roll it up and store it in cupboard or cabinet.Perfect for surface protector,mess collector,such as worktop mat,table mat,placement mat,drawer mat,counter mat,freeze dryer mat,and so on.

VITCAS Heat Resistant Silicone - Excellent Adhesion - Glass and Glazed Surfaces - Enamel Ceramics - Impregnated and Painted Wood – Plastics - Flexible Sealant - Designed for Joints - Black Finish - 310ml

3% OffFree Shipping

Why We Love It

Excellent adhesion to surfaces.
Easy to apply.
Black finish available.

Main Highlights

EXCELLENT ADHESION: The VITCAS heat resistant sealant will provide you an excellent adhesion, which is designed for the Sealing or fixing ceramics, glass and metal, sealing other silica based materials.
EASY TO APPLY – The VITCAS Heat Resistant SILICONE can be Apply using a cartridge gun, further heat resistant sealant comes in a smooth paste, which you can directly apply to the cracked area and it will get strengthen up once it comes in contact with open air.
APPLICABLE –The VITCAS Heat Resistant SILICONE has a BLACK finishing and Excellent adhesion to most building materials, Glass and glazed surfaces, Enamel Ceramic, Impregnated and painted wood or Plastics.
METHOD FOR APPLYING - The VITCAS Heat Resistant SILICONE Before applying the fire cement make sure to clean all the dirt and dust, then dampen the area of application and then apply using a cartridge gun.
DIMENSION - 23 x 6 x 5 cm; 360 Grams.

Everbuild EVBPCHEATSIL Heat Resistant Silicone Sealant, Black, 310 ml

30% OffFree Shipping

Why We Love It

Ideal for high-temperature areas.
Quick drying and flexible finish.
Completely waterproof when cured.

Main Highlights

SUITABLE FOR HIGH-TEMPERATURE AREAS – Use it on domestic and commercial ovens, chimneys, gaskets and more where the temperatures reach extremes.
QUICK CURING – Dries to a tack-free skin in within 1 hour and completely cures to a permanently flexible finish at a rate of 3mm per 24 hours.
100% WATERPROOF – Once fully cured, Everbuild silicone sealant is waterproof, making it ideal for use as a gasket sealant.
TEMPERATURE RESISTANCE – Heat stable up for short-term use at 275°C and continuous use at temperatures of 250°C.
EASY TO APPLY – Insert the cartridge into a standard sealant gun, snip the tip and apply.

VITCAS Heat Resistant Sealant - Excellent adhesion - Converts to rock - Simple to use - Heavy duty – Fixing Ceramic – Glass - Metal - 1300 C - 310ml

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Why We Love It

Excellent adhesion to various materials.
Converts to rock-like hardness.
Easy application method.

Main Highlights

EXCELLENT ADHESION: The HRS - heat resistant sealant will provide excellent adhesion, designed for the Sealing or fixing ceramics, glass and metal, sealing other silica based materials.
CONVERTS TO ROCK: The HRS - heat resistant sealant will convert itself to rock like hardness when it is exposed to air. The composition is made in a way that it hardens up when exposed to open air.
FOR SEALING: Vitcas HRS - heat resistant sealant is best option Sealing or fixing ceramics, glass and metal, sealing other silica based materials.
EASY TO USE: Apply using a cartridge gun, HRS - heat resistant sealant comes in a smooth paste, you can directly apply it to the broken area and it will harden up once it comes in contact with open air.
APPLICATION METHOD: Before applying the HRS - heat resistant sealant make sure to clean all the dirt and dust, then dampen the area of application and then apply using a cartridge gun.

High-Temperature Silicone Sealant – Black Oven Door Repair Adhesive – Heat Resistant up to 400°C (40g)

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Why We Love It

Tailored for oven use.
Safe and non-toxic once cured.
Extreme heat resistance up to 400°C.

Main Highlights

Tailored for Ovens: Specially formulated for oven doors, glass panels, and heat-exposed components.
Safe After Cure: Food Grade Silicone , Odourless and non-toxic once cured, ideal for use inside domestic kitchen appliances.
Extreme Heat Resistance: Endures continuous temperatures up to 400°C — one of the highest-rated consumer sealants on the market.
Strong, Flexible Seal: Maintains elasticity and bond strength through heating cycles — no cracking or peeling.

High Temperature Silicone Sealant Heat Resistant to 1500°C, Flues, Stoves, Glass - DIYUK®

Why We Love It

Extra-hard and durable finish.
Exceptional temperature resistance.
Versatile application uses.

Main Highlights

Odourless and ready to use, this flexible, halogen free silicone sealant is heat resistant to 1500ᵒC and reacts with atmospheric moisture to form a durable flexible seal. Ideal for high temp applications such as sealing connections between single skin flue pipes and can be used outside on the Flashing.
Colour: Dark Grey (Black on tube). Temperature resistance: up to 1500 ᵒC
After the final solidification, slowly heat the sealant up to +250 °C. As the result of heating, the mass will turn dark grey and become extra-hard. Limitations: Not suitable in moving joints and in contact with materials that expand or contract when exposed to temperature. Unheated product is not waterproof and will spread in a wide joint.
Suitable on natural stones. Insulation of joints and filling of cracks in chimneys, ovens, fireplace and stoves. Adheres to metal, stone, brick and concrete
Apply sealant in the joint by repeatedly and evenly pressing on gun trigger and smoothly dragging the nozzle along the joint. After application, smooth the surface with a rubber silicone scraper or putty knife and remove excess material. In some cases, it is more convenient to use plaster spatula.
DYIUK Quality

J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.

11% OffFree Shipping

Why We Love It

Handles high, continuous temperatures well.
Provides world's strongest bonds.
DIY-friendly and versatile.

Main Highlights

HI TEMP RED SILICONE GASKET MAKER & SEALANT: Is an RTV (Room Temperature Vulcanized) Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550º F or 650º F intermittent might exist
COUNT ON US: For more than 40 years, our products have earned a loyal following from people who take pride in their work. With each product we innovate, we continue to provide the world's strongest bond for your projects
EASY TO USE: Curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering and is sensor safe
VERSATILE & DEPENDABLE: Ideal for automotive, metal, oil pans, exhaust manifolds, water pumps, timing covers, differential covers, drive housings and oven doors
DO IT YOURSELF: Big or small, you can DIY it with J-B. Our heavy duty adhesives repair & restore it right the first time. JB Weld delivers the legendary performance of the World's Strongest Bond

Schwarzwald Metzgerei Schaufler

High temperature silicone sealant, silicone sealing compound, heat-resistant sealant for household, car, vehicles, ovens, oven window glazing, electric cookers, stove hobs, cooking surfaces, oil pan, gasket, engine, gearbox, fan pumps, boiler, air conditioners, dryer 85 g + 350 °C, black tube.

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Main Highlights

Contents: 21 g.

8.7

Excellent

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We scanned 540 products

We reviewed these offers relevant to the Heat Resistant Silicone within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like TITANIUM PRO, Everbuild, RZCOMP, VITCAS, ADVANCEDSIL, J-B Weld, Schwarzwald Metzgerei Schaufler, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Heat Resistant Silicone in the market, we considered we took a deep dive into 2701 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is 2 x High Temperature Silicone Sealant Heat Resistant to 1500°C, Flues, Stoves, Glass. We love many things about this product by TITANIUM PRO. What sets it apart from the competition is Temperature resistance to 1500ᵒC, Adheres to multiple surfaces, Odorless and ready-to-use.
The best value product for most shoppers and where user satisfaction is continuously the highest is Everbuild Everflex Heat Mate Sealant – High Performance Heat Resistant Silicone Sealant – Waterproof – Low Dirt Pick Up – Permanently Flexible – Black – 295ml by Everbuild based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Heat Resistant Silicone and the best cost-to-value ratio is Everbuild EVBPCHEATSIL Heat Resistant Silicone Sealant, Black, 310 mlat Everbuild with a 30% discount.
Our list of the best Heat Resistant Silicone is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Heat Resistant Silicone in The UK

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We scanned 540 products

We concluded that: