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A flexible, acetic-reticulation silicone sealant characterised by its resistance to high temperatures. Suitable for flexible seals which resist continuous temperatures up to +300°C. Specifically developed to seal flues, boilers, industrial and domestic ovens, pipe-work and conduits subjected to high temperatures when in service. Flexible seals for joints and fillets on components subjected to high temperatures when in service, such as:
- Flues, ovens, chimneys
- Radiators, barbeques
- High temperature pipe-work
- Heat exchangers and boilers
- Bonds to all non-absorbent, non-oxidising substrates after cleaning and de-greasing the contact surface
- Apply a coat of Primer FD beforehand on absorbent alkaline surfaces
- For professional use only
Mapesil 300°C is a soft paste which reacts with atmospheric humidity and gives off acetic acid to form a flexible, adhesive rubber material.
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Features & Benefits
- Application and polymerisation of Mapesil 300°C must take place at the surrounding temperature until the section of sealant completely hardens. Only when hardened may it come into contact with high temperatures
- A flexible sealant which contains special fillers resistant to high temperatures, although it is not suitable for contact with direct flames
Recommendations & Limitations
- Do not apply on dusty or crumbly surfaces
- Do not apply on damp surfaces or on surfaces with stagnant water
- Do not apply on hot surfaces at more than 35°C
- Do not use in direct contact with flames
- Wear protective gloves and goggles when handling the product
- May not be painted over
- Remove traces of excess sealant immediately after smoothing it over
Application & Preparation
Please refer to the data sheets in the tab above for further information.
Data sheet
- Manufacturer
- Mapei
- For Use On
- Barbecues
Radiators
Pipework
Boilers - Single, Two or Three Pack
- Single
- Pack Size
- 300ml
- Coverage
- One cartridge of Mapesil 300°C will form 3 metres of 10 x 10 mm section
- Max. Application Temperature
- 35°C
- Min. Application Temperature
- 5°C
- Heat Resistance (up-to)
- from -30°C to +300°C
- Suitable For Use On
- Radiators
- Suitable For Use On
- Pipework
- Suitable For Use On
- BBQ
- Suitable For Use On
- Boiler Fittings
- Manufacturer
- Mapei
- Usages
- High Temperature
- Product Usage Type
- Sealant
- Product Range
- Mapesil
- Colour Family
- Black
Questions
Question about the product
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IMPORTANT SHIPPING & DELIVERY INFORMATION
Mapei Mapesil 300°C is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT