Mapei Mapetherm Flex RP, 20 Kg

Non Hazardous
A cement free, fibre-reinforced, lightweight, elastic, skimming paste and base coat. Resistant to biological agents for internal and external use.
Available in 20 Kg
From £103.63 £86.36
In stock
Only %1 left
Product Description

Mapei Mapetherm Flex RP is a cement free, fibre-reinforced, lightweight, elastic, skimming paste and base coat. Resistant to biological agents for internal and external use. Colourable and available in two texture grades (0.5 mm and 1.5 mm).

Mapetherm Flex RP is an organic skimming base coat characterised by high elasticity made from acrylic resins in water dispersion, selected fillers, glass micro-spheres and polypropylene fibres. It also contains admixtures that make it resistant to biological agents. Unlike traditional cementitious based smoothing and levelling compounds Mapetherm Flex RP does not need to be fully cured and there is no need to use a primer before applying the final finish, thereby reducing the time to complete work considerably.

Best Uses

Mapei Mapetherm Flex RP is ideal as a reinforced skim coat on insulating panels and thermal insulation systems. It is also suitable for renovating damaged / deteriorated insulating systems, and repairing cracked walls on all types of buildings, including painted walls. Mapei Mapetherm Flex RP is also suitable for repairing render to even out surface defects.

Mapetherm Flex RP is particularly recommended for protecting critical areas such as wainscots, communal areas in apartment buildings and areas open to the public exposed to impact and stresses. Mapetherm Flex RP, in the 0.5 mm version, is ideal for use on surfaces where a smooth even finish is required, including on insulation systems and may be used to level internal walls that require a smooth, elastic finish.

Mapetherm Flex RP adheres perfectly to all types of insulating panels, skimming mortars, traditional render and old, well-adhered paintwork. Thanks to its special composition it also provides excellent resistance to impact loads: used in the main Mapetherm systems in combination with 1.2 mm thick layers of plaster; it passes 15 Joule impact tests. Mapetherm Flex RP may be tinted using the ColorMap® automatic colouring system. When applied in a colour similar to that of the finishing coat, apart from reducing the number of coats required, it hides imperfections in the substrate and helps form an even, uniform finish.


Mapetherm Flex RP is supplied ready to use; 1-2% of water may be added if the product is too thick. Apply the product with a stainless steel trowel making sure the product is applied in an even coat. Then go over the surface with a plastic float to obtain an even finish.

Suitable for use as a skim coat on insulating panels, reinforced skim coats on façades, repairs to damaged  / deteriorated insulating systems and skim coats on internal walls.

Technical Details

Technical Info

Components: Single Pack
Type: Water Based
Finish: Smooth
Stock Colours: White
Tintable: Yes. Please note, bespoke tints are non refundable / exchangeable
VOC Content:

White: ≤ 13

Coloured: ≤ 24

Dry Solids Content: 80%
Suitable Substrates: Cement
Application Method: Brush, Roller, Spray or Trowel
Application Temperature: +5°C to +35°C
Theoretical Coverage: 0.5 mm: 1.9-2.1 kg/m² per 1 mm of thickness
1.5 mm: 4.0-5.0 kg/m² per 1 mm of thickness
Dilution Rate: Ready to use
Wait Time Between Coats: 12-24 hours. The previous coat must always be
completely dry
Wait Time Before Finish: 24-48 hours. The previous coat must always be
completely dry
Cleaner / Thinner: Clean tools with water before prosuct dries
Shelf Life: 24 monthsfrom date of production unopened
Packaging: Available in 20 Kg

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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