Top 10 Heat Resistant Sealant UK – Sealers

As an Amazon Associate I earn from qualifying purchases.

1. Everbuild


200g, Everbuild P12 Plumber's Silicone Grease

Everbuild #ad - It has a low vapour tension up to 200°C, enabling low residual pressure to be achieved. Chemically inert it is non-corrosive on metals and has no plasticising effect on rubber or plastic. Wras approved material. Lubricant and sealant with excellent resistance to most chemicals, extreme temperatures -50°C to 200°C and exceptional water resistance.
BrandEverbuild #ad
ManufacturerSika #ad
Part NumberP12

2. Loctite


0.2 Fl. Oz Pack of 1, 2, 0.2 oz, Blue 242, Single Thread Locking Adhesive, Loctite 209728 Heavy Duty Threadlocker

Loctite #ad - Easy and quick: sets in 10 minutes and fully cures in 24 hours. Prevents rust and corrosion: Protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers. Lock and seal fasteners: prevents loosening of metal fasteners caused by vibration on small motors, mowers, and power equipment. For 6-19mm fasteners: medium-strength formula for use on threads for 6mm to 19mm nuts and bolts. Removable: Can be removed with hand tools.
BrandLoctite #ad
ManufacturerHenkel #ad
Weight0 kg (0.01 Pounds)
Part Number209728

3. Sika


300 ml new version, White, Sikaflex 522 Caravan and Motor Home Adhesive Sealant Cartridge

Sika #ad - Easy to apply: suitable for use both internally and externally with minimal surface preparation. Designed for caravan and motor home: All-in-one sealant and adhesive designed for repairs and construction to caravans and motorhomes.

Long lasting: provides a flexible seal that is resistant to UV lights, fungus, ageing, weathering, mould and high electricity. Uses: use to bond and seal panels, aerials, refigeration vents, vents, sealing windows, awning rails, roof lights, sealing leaks and much more. Suitable for many surface types: Produces a strong, metal primers, long lasting seal that bonds to a variety of substrates including, ceramics, plastics and much more. Newer version: sika 522 has replaced SIKA 512. Safe to use: low odour, PVC and solvent free.
BrandSika #ad
ManufacturerSikaflex #ad
Height22.5 cm (8.86 Inches)
Length4.9 cm (1.93 Inches)
Width4.9 cm (1.93 Inches)
Part Number522
WarrantyProduct guarantees 0 months.



Mastic for engine seals, AREXONS MOTORSIL D ORGINAL RED Dough for engines 60 g silicone gasket, high temperature engine sealant, easy removal, resistant to vibration absorption

AREXONS #ad - Single component elastomer - motorsil D is a single-component elastomer of acetic type, a red motor paste that forms a gasket of any thickness and allows to form dynamic and elastic couplings. Easy to remove - arexons motorsil d red paste is a durable and well sealant high temperature silicone that is easy to apply but also to remove without damaging or causing damage.

Advanced features - arexons silicone paste vulcanizes at room temperature and has good resistance to temperature, water, humidity. It is tear-resistant and has a high degree of vibration absorption. It has excellent oil resistance and good dielectric properties.

Fields of use - arexons high temperature silicone is used to replace or as an adjuvant of any type of pre-formed seal. Resists mechanical stress. It is also suitable for engines equipped with a catalytic converter. Does not damage catalytic converters. Exercise temperature - the operating temperature of our paste putty is from -70°C to +250°C, with tips of 300°C.
BrandAREXONS #ad
ManufacturerArexons #ad
Height3 cm (1.18 Inches)
Length14 cm (5.51 Inches)
Weight0.08 kg (0.18 Pounds)
Width5 cm (1.97 Inches)
Part Number0096

5. CT1


Vibration Resistant & Flexible, Anti Mould Waterproofing Sealant Adhesive, Odourless, Bathroom, 290ml, CT1 Black TRIBRID Multi-Purpose Sealant & Adhesive, Shower & Window Sealant

CT1 #ad - Stronger than a traditional hybrid polymer. Can be used outside or inside. Provides excellent colour retention, resistence to chemicals and is environmentally compliant. Does not contain solvents, does not shrink and has unique flexibility.

Successfully bond all metals, tiles, polystyrene, pe, glass, most synthetic materials, most stones without staining, all woods, concrete, plastics excluding PP, mdf, fiberglass, mirrors, and PTFE. Perfect for use in your bathroom, accident emergency repairs, as a fish tank sealant, marine and boating maintenance, or kitchen sealant. This sealant can also be painted as required. The ct1 sealant black utilises our unique tribrID Technology to provide an all-in-one solution to sealing and bonding in an exterior or interior setting. This sealant adhesive also offers resistance to vibrations and works well in wet or dry conditions.
BrandCT1 #ad
ManufacturerCt1 #ad
Part Number535106_SML

6. Milliput


MILLIPUT standard epoxy putty

Milliput #ad - This listing is for a Pack of 1. Milliput putty. Milliput expoxy. Milliput epoxy putty. Milliput standard.
BrandMilliput #ad
ManufacturerMilliput #ad
Part Number50090250

7. Henkel


Henkel 2700/5/1 Loctite Health and Safety Threadlocker, 5 mL, High Strength

Henkel #ad - Pumps, gear boxes or presses. Prevents loosening on vibrating assemblies, e. G. Works on all metals, aluminium, including passive substrates e. G. Stainless steel, plated surfaces. High strength general threadlocker for maximum efficacy. No hazard symbols, no risk phrases & no safety phrases; "White” Material Safety Data Sheet. Can be disassembled by heating to 300°C.
BrandHenkel #ad
ManufacturerHenkel #ad
Part Number2700/5/1

8. CT1


Odourless, Shower & Window Sealant, 290ml, CT1 Clear TRIBRID Multi-Purpose Sealant & Adhesive, Bathroom, Anti Mould Waterproofing Sealant Adhesive, Vibration Resistant & Flexible

CT1 #ad - Stronger than a traditional hybrid polymer. Provides excellent colour retention, resistance to chemicals and is environmentally compliant. This sealant adhesive also offers resistance to vibrations and works well in wet or dry conditions.

Can be used outside or inside. The ct1 sealant clear utilises our unique tribrID Technology to provide an all-in-one solution to sealing and bonding in an exterior or interior setting. Perfect for use in your bathroom, accident emergency repairs, as a fish tank sealant, marine and boating maintenance, or kitchen sealant. Does not contain solvents, does not shrink and has unique flexibility. This sealant can also be painted as required. Successfully bond all metals, plastics excluding pp, all woods, mirrors, polystyrene, glass, PE, concrete, tiles, most stones without staining, fiberglass, most synthetic materials, MDF, and PTFE.
BrandCT1 #ad
ManufacturerC-Tec #ad
Height23.2 cm (9.13 Inches)
Length7 cm (2.76 Inches)
Width6.8 cm (2.68 Inches)
Part NumberCT1 539506

9. Unibond


Long-Lasting Shower Sealant, Repels, Clear Sealant, Kills and Prevents Mould Growth, 1 x 291 g Cartridge, UniBond Triple Protection Stop Mould Silicone Sealant For Kitchens and Bathrooms

Unibond #ad - Once applied it is touch dry in 20 minutes and fully dry in 24 hours. Coverage – the practical sealant cartridge lasts for 1x bath, 2x showers & 2x sinks. Multi-purpose – the unibond sealant can be used as a power shower sealant, worktops, for bathrooms, baths, toilets, sinks, basins or other tiled areas in general*.

Triple protection – the durable clear sealant offers a Triple Protect formulation to keep bathrooms & kitchens sanitary – repelling, killing and preventing mould growth. Package contents – unibond triple protection stop mould Sealant, sinks & basins etc. Waterproof sealant for kitchens, bathrooms, clear, kills & prevents mould growth, repels, 1x291g Cartridge. Long-lasting – the kitchen and bathroom silicone sealant is not only designed to be waterproof but is also flexible and durable – ideal for challenging conditions.
BrandUnibond #ad
ManufacturerHenkel #ad
Height23 cm (9.06 Inches)
Length5 cm (1.97 Inches)
Width5 cm (1.97 Inches)
Part Number2493986

10. J-B Weld


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

J-B Weld #ad - Count on us: for more than 40 years, our products have earned a loyal following from people who take pride in their work. It will not shrink or crack, resists weathering and is sensor safe. Easy to use: curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces.

Our heavy duty adhesives repair & restore it right the first time. Jb weld delivers the legendary performance of the World's Strongest Bond. Do it yourself: big or small, you can diy it with j-b. With each product we innovate, we continue to provide the world's strongest bond for your projects. Versatile & dependable: ideal for automotive, water pumps, oil pans, metal, exhaust manifolds, timing covers, differential covers, drive housings and oven doors.

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.
BrandJ-B Weld #ad
ManufacturerJBWeld #ad
Weight0.09 kg (0.2 Pounds)
Part Number31314
WarrantyNo Warranty