Mapetherm Flex RP is a water-based cement-free, fibre-reinforced, lightweight, elastic, skimming paste and base coat resistant to biological agents for internal and external use.

Characterised by high elasticity, it is 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.

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.

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• Features & Benefits
• Product Preparation
• Application
• Cleaning
• Limitations

Features & Benefits

• Contains mixtures that make it resistant to biological agents.
• Does not need to be fully cured, and there is no need to use a primer before applying the final finish
• Adheres perfectly to all types of insulating panels, skimming mortars, traditional render and old, well-adhered paintwork
• Provides excellent resistance to impact loads
• 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

Product Preparation

Mapetherm Flex RP is supplied ready to use; 1-2% of water may be added if the product is too thick.

Application

Apply the product with a stainless steel trowel making sure the product is applied in an even coat. Then it may be worked with a sponge float while it is drying to create a fine textured rustic effect. When used to skim thermal insulation system with a natural finish.

After preparing the substrate as specified with Mapetherm Flex RP 1.5 mm reinforced with Mapetherm Net mesh, apply one or two layers of Mapetherm Flex RP 0.5 mm to obtain a smoother finish than with traditional textured plaster; wait until the first layer is completely dry before applying the second one (12-24 hours).

Use Mapetherm Flex RP 0.5 mm in a similar colour to that of the final finish, which may only be applied once Mapetherm Flex RP 0.5 mm is completely dry (24-48 hours depending on surrounding temperature and level of humidity).

For skim coats on internal walls, the substrate must be dry with no traces of dust or dirt. If necessary apply by brush, roller or by spray one coat of suitably diluted Malech, according to the substrate absorbency.

Apply two coats of Mapetherm Flex RP after at least 12-24 hours and finish off the surface with a sponge float. After a further 24-48 hours, depending on the level of humidity and surrounding temperature, and in all cases only when the previous coat is completely dry, apply two coats of interior paint such as Dursilite, Dursilite Matt or Colorite Matt.

If required, the levelling coat may be reinforced with Elastocolor Net. No primer is required.

Cleaning

Clean trowels and other tools with water before the Mapetherm Flex RP dries.

Limitations

• Do not use Mapetherm Flex RP as a base coat for silicate-based products
• Do not apply Mapetherm Flex RP if it is about to rain or in windy weather conditions. After applying the product protect the surface from rain while it is drying for 48/72 hours
• Mapetherm Flex RP does not contain solvents, therefore it is not required to take particular precautions when handling the product. If the product is applied in closed areas make sure they are well ventilated
• Do not apply if the temperature is lower than +5°C or higher than +35°C
• Do not apply if the level of humidity is higher than 85%
• Do not apply on damp walls or on walls with rising damp