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• Features & Benefits
• Recommendations
• Technical Characteristics
• How To Use
• Safety Instructions

Features & Benefits

   
• Suitable for laying resilient or carpet floorings on screeds which are not completely dry or which are subject to rising damp, or on cracked screeds where it is not possible to repair the cracks because they may be subject to movement
• Laying resilient floorings on old industrial floors where the screed is impregnated with oil or waste process material, which proves difficult to remove
• To temporarily protect all types of new floors while normal site operations are being carried out
• Laying a temporary playing surface in areas where the old flooring needs to be used again immediately after an event (e.g. sports arenas)
• Laying resilient or carpet floorings for a set time to avoid damaging the underlying floor in marble, wood, rubber, etc
• Confining and neutralising vinyl-asbestos floor coverings by overlaying with new floor coverings in carpet, rubber or PVC (after application of the Aquaflex System)

Technical Characteristics

• Mapelay is a very stable support material in PVC reinforced with fibreglass
• It is 1.5 mm thick and is available in rolls 25m long and 2m wide, weighing approximately 1.5 kg/m²
• The position and shape of the special dimples on the underside allow the air to move around constantly
• Extremely flexible and will adapt perfectly to the underlying substrate, it is easy to cut, does not absorb damp, is perfectly stable and is practically impervious to changes in temperature
• Also improves the thermal insulation and soundproofing characteristics of the substrate on which it is laid
• Dimensionally stable; floor coverings bonded to it remain stable over long periods of time (as long as the floor covering itself is not subject to excessive movement) and will outstand any kind of traffic, except vehicles and other heavy traffic
• May be removed together with the floor covering (if it is flexible enough) and rolled up to leave the substrate in its original condition without having to carry out any special cleaning operations

Recommendations

• Contact the producer of the floor covering to verify that the system is suitable
• Mapelay is a poor conductor of heat and is not suitable, therefore, for laying on heated screeds, even though it is not subject to significant dimensional variations
• Mapelay is not suitable for outdoor applications
• Do not use Mapelay in areas subject to heavy traffic, for example cars or fork-lift trucks
• Do not lay Mapelay if the temperature is lower than +15°C
• Do not bond Mapelay to the substrate
• Do not place Mapelay in direct contact with perimeter walls
• Anhydrite screeds or gypsum-based smoothing compounds must be perfectly dry before laying Mapelay

How To Use

Preparation of the substrate:

• Cementitious screeds must be stable, sound, relatively flat and free of loose and irregular parts
• Substances which are liable to ferment or give off unpleasant odours in the presence of damp must be eliminated before application
• Any cracks which are present in the substrate must not form steps or gaps, and must not be larger than 3mm
• Existing wood, ceramic, natural stone floors etc. must be well bonded to the substrate
• To level cementitious screeds which are still damp or subject to rising damp, use Adesilex P4, Planex HR or Planex HR Max
• If they are dry, uneven cementitious screeds or ceramic surfaces with large joints may be smoothed off and repaired with a suitable Mapei product

Laying Mapelay:

• Before laying the floor covering, make sure that Mapelay, the floor and the room or area involved are at the temperature recommended by the manufacturer - the temperature must not be lower than +15°C
• Mapelay and the floor covering to be laid must be removed from their packaging a few hours before laying
• The sheets must be loosely laid out and lined up in the same direction in which they are to be laid
• The joints between the sheets of Mapelay and the joints in the flooring (PVC, rubber, etc.) must not coincide (overlap by at least 10-20 cm)
• Leave an isolating joint of 5-10 mm between the sheets of Mapelay and the perimeter walls or columns
• Adjacent sheets of Mapelay must overlap by approximately 10mm
• The sheets must be cut and trimmed while carrying out the final laying operations
• Make sure that the sheets of Mapelay do not move while carrying out this operation
• When laying Mapelay, it is necessary to stagger the head joints of the sheets
• If a water dispersion adhesive is used, we recommend the application of a 10 mm wide self-bonding waterproofing tape over the joints between the sheets of Mapelay

Laying the floor covering:

• Rubber, PVC, linoleum and carpet flooring must be laid so that their joints do not coincide with those in the sheets of Mapelay
• They must be staggered by at least 10-20 cm, and there must also be a gap of 5-10 mm between the floor covering and the walls and columns
• The floor covering must be laid according to the recommendations of the manufacturer
• The adhesive must be applied uniformly with a Mapei N°1 notched trowel
• Make sure that the adhesive does not accumulate, and that the quantity applied is 250-300g/m²
• The most suitable adhesive for laying rubber, PVC or linoleum floorings is Ultrabond Eco MS 4 LVT Wall, Adesilex G20 or Adesilex G19, according to the thickness and the type of backing on the floor covering
• Carpet and nonwoven floorings may be laid with any one of the suitable adhesives in water dispersion
• To make sure that a good bond is obtained and to eliminate any air bubbles, rub down well the floor covering with a smooth trowel, working from the middle towards the outside
• Do not use a roller
• Do not kneel directly on the floor when rubbing down the sheets (use pieces of polystyrene or plywood)

Cleaning:

• Clean traces of adhesive from the surface of the floor covering before it starts to set (while still fresh)
• Use ethanol to remove Ultrabond Eco MS 4 LVT Wall, Adesilex G20 or Adesilex G19

Safety Instructions

• Mapelay is an article and referring to the current European regulations (Reg. 1906/2007/EC - REACH) does not require the preparation of the safety data sheet
• During use it is recommended to wear gloves and goggles and follow the safety requirements of the workplace