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• Features & Benefits
• Preparation
• Application
• Limitations

Features & Benefits

• One-component, solvent-free bitumen emulsion with good workability properties, produced according to a formula developed in MAPEI’s own Research & Development Laboratories
• May be applied by brush or roller and is resistant to aggressive substances in the ground
• Dries quickly (approx. 30 minutes)
• Consolidates and improves bonding of Plastimul waterproofing treatments applied later
• Rresistant to ageing and adheres to dry substrates
• May be applied both internally and externally
• Even out and improve bonding to the substrate before applying waterproofing products from the Plastimul range

Preparation

• Before applying Plastimul Primer on substrates such as vibro-compressed concrete blocks, solid terracotta bricks, breeze blocks, cellular concrete blocks, lightened bricks and solid pumice bricks, make sure that the surface is perfectly clean, solid and sufficiently even
• Carefully remove traces of installation mortar protruding from between the bricks or blocks
• Grout any empty spaces in the joints using either Mapegrout Fast-Set, quick-setting fibre-reinforced cementitious mortar if waterproofing is required quickly, or Mapegrout Thixotropic, shrinkage-compensated, fibre-reinforced mortar
• Cavities and cracks deeper than 5 mm must be smoothed over with Mapegrout Fast-Set or with the chosen mortar
• As an alternative, if cavities are less than 5 mm depth, the surface may be smoothed over with a bitumen waterproofing product, to avoid entraining air bubbles and thus causing blisters to form
• As an alternative, a mortar made using sand and cement with added Planicrete, rubber for cementitious mixes latex, may be applied
• Create a fillet to blend in the foundations with the side walls using Mapegrout Fast-Set or Mapegrout Thixotropic

Application

• Shake Plastimul Primer well in its own tank to make sure that it is perfectly homogenous
• Apply using a brush or roller on dry surfaces in a single coat
• The product dries in approximately 30 minutes
• Clean tools with water while still fresh, mechanically or with thinners once hardened
• Coverage rates vary according to the roughness and absorption of the substrate, approx. 100-200 g/m²

Limitations

• Do not dilute Plastimul Primer with solvents
• Do not mix Plastimul Primer with cement or additives
• Do not apply Plastimul Primer if the temperature is lower than +5°C or higher than +30°C
• Do not use for waterproofing without a successive application of products from the Plastimul range
• Do not use for waterproofing structures with water in counter pressure
• Do not apply on old screeds and existing layers of bitumen
• Do not apply on substrates containing tar