Thermoseal
High-temperature neutral silicone for automotive and industrial gasket work.
A heavy-duty neutral-cure silicone for forming and replacing gaskets in engines and other automotive or industrial assemblies.
Why this product
High-temperature neutral silicone for automotive and industrial gasket work.
- Up to 310°C intermittent resistance
- Up to 250°C continuous resistance
- Oil resistant
- Heavy-duty application
Applications and substrates
Where Thermoseal fits.
Recommended applications
High-temperature sealingFormed-in-place gasketsEnginesAutomotive repairIndustrial assembliesElectrical sealingElectronic component sealingCommercial kitchensAssociated substrates
Metal flangesMetal lap jointsEngine componentsAutomotive componentsElectrical assembliesElectronic componentsIndustrial assembliesCommercial kitchensEnvironment
SpecialistApplication guidance
Strip the old gasket. Form a continuous bead.
Surface preparation
- Remove old gasket material, oil and contamination.
Application method
- Apply a uniform continuous bead around the prepared flange.
- Allow the specified cure before returning the assembly to service.
Usage considerations
- Temperature resistance is application-dependent; consult the current TDS.
Technical information
Thermoseal specification.
Values below are taken from the current official technical data sheet. Actual performance depends on substrate, preparation and site conditions.
- Chemistry
- Neutral
- Pack sizes
- 300 ml
- Colours
- Red (technical grade)
- Shelf life
- 12 months in original packaging
- Storage
- Store in a dry, well-ventilated place below 30°C.
Tested performance
Technical data.
PropertySpecificationTesting standard
Paste density1.0-1.1 g/ccASTM D 1475
Skin formation15-20 min—
Tack-free time180 minASTM C 679-15
Elongation>600%ASTM D 412
HardnessShore A 18-24ASTM D 2240
Tensile strength>10 kg/cm²ASTM D 412
Continuous exposureUp to 250°C—
Intermittent exposureUp to 310°C—
Restrictions on use
- Do not use where continuous contact with gasoline, synthetic fuels or solvents is expected.
Frequently asked questions
Answers about Thermoseal.
What is Thermoseal used for?
Thermoseal is positioned for high-temperature sealing, formed-in-place gaskets, engines, automotive repair, industrial assemblies, electrical sealing, electronic component sealing, commercial kitchens. The best fit depends on the surfaces and exposure involved in the job.
Which surfaces are associated with Thermoseal?
The current application map includes Metal flanges, Metal lap joints, Engine components, Automotive components, Electrical assemblies, Electronic components, Industrial assemblies, Commercial kitchens. Carry out a compatibility test where the substrate or coating is unfamiliar.
Can Thermoseal be used outdoors?
Thermoseal is currently positioned for specialist applications rather than general exterior use.
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