Mapei Mapesil LM 100 310ml

A one-component, solvent-free silicone sealant with low odour. A thixotropic paste it is easy to apply on vertical and horizontal surfaces and reticulates at room temperature through atmospheric humidity to form a flexible sealant.

Units per pack






Unit Price

£13.49   + VAT


Our price

£13.49 £16.19 inc VAT


Standard Delivery £35.00

Click and Collect Available
BIG SAVINGS ON BULK ORDERS Call 01708 855 698 for a bespoke quote

Mapei Mapesil LM

Product Code: MAPESIL-LM-12

Mapei Mapesil LM is a solvent-free sealant with a low modulus of elasticity specifically formulated for sealing all materials sensitive to acids and plasticising agents, marble, granite, sandstone and quartz due to its chemical nature which deters surface bleeding or the migration of plasticising agents which would otherwise stain the substrate.

The chemical characteristics of the product also make it perfectly suitable for particularly delicate materials such as bricks, cellular concrete and varnished or enamelled wood.

Mapei Mapesil LM generally forms an excellent bond on non-absorbent substrates too, such as glass, ceramic, clinker, enamelled surfaces, water and solvent-based varnish, metals in general and on various types of plastic. It is also suitable for contact with absorbent mineral substrates such as concrete, render and fibre-cement.

This product generally forms a good bond on the above substrates even if a primer is not applied beforehand (contact the MAPEI Technical Services Department before).

Performs well in treated water typically found in swimming pools.

Thanks to the low modulus of elasticity of Mapesil LM, it is suitable for sealing internal and external fillet and expansion joints, including those subject to high levels of movement when in service, between:

  • pre-fabricated panels;
  • window/door fittings and wall surrounds;
  • pipe-work and vertical walls;
  • similar and/or different types of coating materials.

It is also suitable for sealing joints in floors with limited pedestrian traffic.


Technical Characteristics

Mapesil LM is a one-component, solvent-free, neutral-cure silicone sealant which does not emit unpleasant odours, available in the form of a thixotropic paste. It is easy to apply on vertical and horizontal surfaces and cures at room temperature through the humidity present in the air to form a flexible sealant.

Seals made using Mapesil LM are extremely stable over time, even when exposed to inclement weather, industrial environments, temperature variations or water. The product remains flexible over a temperature range of between -40°C and +150°C.

Mapesil LM delays the formation of surface mould. Mapesil LM generally offers good resistance to chemical agents. However, because of the wide range of products and service conditions, if in doubt carry out preliminary tests beforehand. Mapesil LM bonds perfectly to most types of substrate used in the building industry without applying a primer beforehand (glass, ceramic, marble, aluminium, zinc-plated sheet metal, concrete, stainless steel and PVC).

Primer FD must be applied beforehand in the case of prolonged immersion in water.

If in doubt, please contact the MAPEI Technical Services Department or carry out preliminary tests beforehand.

Mapesil LM is particularly suitable for surfaces sensitive to acids on which conventional neutral or acid sealants normally provoke changes in colour or staining of the substrate.

Mapesil LM complies with EN 15651-1 norm (“Sealants for internal and external façade elements”) with performance rating F-EXT-INT-CC, with EN 15651-2 norm (“Sealants for glazing”) type G-CC, with

EN 15651-3 norm (“Sealants for joints in sanitary areas”) type XS1 and EN 15651-4 norm (“Sealants for pedestrian walkaways”) with performance rating PW-EXT-INT-CC.

More information on Mapei Mapesil LM

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Packs per Box


Solseal Delivery Schedule

Orders placed before midday will be dispatched for delivery the same day (except weekends and bank holidays) subject to stock availability.

Orders placed after midday will be dispatched the next working day (except weekends and bank holidays) subject to stock availability.

When you have placed your order our dispatch team will prepare your items for collection from our couriers. When the couriers have collected your items you will be emailed a tracking number.

Please note: Our offices and warehouses are open Monday to Friday, 8am to 5pm. We are closed on weekends and bank holidays. ‘Working day’ is Monday to Friday.

Please allow 3-5 working days for your delivery unless ‘Next Day Express Delivery’ is stated.

If you have ordered a product that is listed as ‘Next Day Express Delivery’ before midday on Monday to Friday your order will be processed an dispatched the same day delivered the next working day.

For example. If you order a product listed as ‘Next Day Express Delivery’ on Monday before midday it will be delivered the next day (Tuesday).

If you order a product listed as ‘Next Day Express Delivery’ on Friday before midday it will be delivered the next working day (Monday).

If you order a product listed as ‘Next Day Express Delivery’ on Friday after midday it will be processed the next working day (Monday) and delivered the following working day (Tuesday).


Orders for UK Mainland

Any orders placed Monday to Friday before midday will be processed and dispatched the same day.

Any orders placed Monday to Friday after midday will be processed and dispatched on the next working day.

Saturday delivery is available on request only – please call 01708 855 698 for a quote.


Orders for Scottish Highlands and offshore locations

We will always endeavour to deliver to you as quickly as possible and at the best possible price.

However please note postcodes in some areas of the Scottish Highlands and offshore addresses require a delivery surcharge to our normal UK carriage fees and in some cases can take longer to be delivered, so please call us on 01708 855 698 for a bespoke quote and place your order with us over the phone.

AB36-38, AB55-56, FK17-21, G83, GY9, HS1-9, IM (ALL), IV (ALL), JE (ALL), KA27, KA28, KW0-14, KW15-17, PA20-78, PH15-18, PH19-29, PH32-33, PH45-48, PH30-31, PH34-44, PH49-99, PO38, ZE (ALL)