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• Features & Benefits
• Preparation
• Application
• Limitations
• Storage and Safety Instructions

Features & Benefits

• Mapefloor I 390 EDF is used in particular to make dissipative coatings in environments such as :
  • Electronic industries
  • Chemical and pharmaceutical industries
  • Laboratories
  • Hospitals and operating theatres
  • Automotive and aerospace industries
  • Warehouses of flammable substances
  • Sterile environments
  • Cleanrooms
• Electrically dissipative
• High mechanical strength and good resistance to chemicals
• Waterproof
• Dust proof
• Ease of cleaning and sanitising (Riboflavin test ISO 4628-1)
• Fulfills ATEX 137
• Bacteriostatic (ISO 22196)
• System fast to put into service
• Two-component, high solid content, pigmented, epoxy resin-based formulate containing electrically-conductive fillers according to a formulation developed in the MAPEI R&D laboratories
• Used to make smooth, selflevelling, waterproof, dissipative coatings with high mechanical strength and good resistance to chemicals
• Applied on substrates after treating their surface with Primer W-AS N, a special two-component water-based epoxy primer for electrically conductive dissipative coatings
• Used to make seamless, selflevelling coatings specific for cleanrooms class ISO 3, concerning particle emissions according to ISO 14644-1, and class -7.9, concerning VOC emissions according to ISO 14644-8. Decontaminable according to ISO 8690/1998 with 137Cs and 60Co
• Complies with the principles defined in EN 13813 “Screeds and materials for screeds – Materials for screeds – Properties and requirements”, which specifies the requirements for screed materials used in the construction of internal floors

Preparation

Surface preparation:

• The surface of concrete floors must be dry, clean and sound and have no crumbling or detached areas
• The compressive strength of concrete substrates must be at least 25 N/mm² and their tensile strength must be at least 1.5 N/mm²
• The substrate must also be strong enough for its final intended use and to withstand the types of loads acting on the floor
• The moisture content in the substrate must be maximum 4% and there must be no capillary rising damp (check by testing it with a sheet of polythene)
• The surface of the floor to be treated must be prepared with a suitable mechanical process (e.g. shot-blasting or grinding with a diamond disc) to remove all traces of dirt, cement laitance and crumbling or detached portions, and to make the surface slightly rough and absorbent
• Before applying the products, thoroughly remove all dust on the surface with a vacuum cleaner
• Any cracks, holes or surface irregularities must be repaired and smoothed with fluid epoxy resin Eporip, or epoxy mortar Mapefloor EP19 or tixotropic epoxy resin Mapefloor JA or Mapefloor JA Fast

Application of Primer SN:

• Apply the Primer SN mixed with Quartz 0.5 on the substrate with a straight trowel after it has been prepared as specified
• Do not broadcast the surface of the primer with quartz sand
• Make sure there are no open pores in the surface of the substrate, otherwise air bubbles could escape and form small craters or pinholes in the self-levelling finishing coat
• If there are holes or open pores in the substrate fill them with Eporip or Primer SN thickened with Additix PE
• When the Primer SN is hardened, sanding the surface and apply by roller a second coat of neat Primer SN

Application of Copper Band and Primer W-AS N:

• The special, self-adhesive, electrically conductive Copper Band strips must be placed on the surface of the hardened Primer SN
  • The number and position of the strips depends on the size and shape of the surface to be coated and the position of any joints, channels, pillars, etc., and, in anycase, they must be positioned every 80 m² of surface minimum (a circular area around 5 meters in radius)
  • The strips are laid on the hardened primer near to a wall, a pillar, etc. by applying a 1-1.5 meter long piece on the surface of the floor, and then folding it up along the vertical surface for at least 50 cm
  • Be very careful when handling the strips of copper and folding them along the wall, otherwise they may be torn or permanently damaged
  • Once the resin coating has been applied, the free ends of the strips must be connected to earth by a qualified electrician
  • Once the copper strips have been positioned, apply a coat of Primer W-AS N electrically conductive resin in water emulsion over the entire surface with a roller
• After 24 hours curing and obtained an even matt black finish, the electrical resistance measurement will need to be conducted
• The resistance to earth RE value must be < 3 x 103 Ω using 10V
• Apply Mapefloor I 390 EDF only after having applied and checked the conductivity of Primer W-AS N
  • Before applying Mapefloor I 390 EDF, remove all traces of dust from the surface with a vacuum cleaner
• For further details regarding the preparation and application of Primer SN and Primer W-AS N, refer to the relative Technical Data Sheets

Preparation of the product:

• Stir each component of Mapefloor I 390 EDF with an electric mixer and add approximately 10% by weight of Quartz 0.25 to component A while mixing to form a smooth, wellblended compound
• Pour all the content of component B into the container of component A and mix again with a suitable low-speed electric mixer (300-400 revs/min.) for at least 2 minutes until homogeneous mixture is achieved
• Do not overmix the product to avoid entraining too much air into the mixture
• Pour the mixture into a clean container and briefly mix again
• Apply the mixture within the pot life indicated in the data table (referred to a temperature of +23°C)
• Higher surrounding temperatures will reduce the pot life of the mixture, while lower temperatures will increase it

Application

• Apply a single layer up to 1.5-2 mm thick of Mapefloor I 390 EDF with a notched spreader or rake (with “V” shaped notches) over the entire surface to be treated
• Immediately after spreading on the selflevelling product, back-roll with a spike roller to eliminate any air entrained into the product during mixing
• It is recommended to pass over the surface with the roller in two perpendicular directions
• Back-roll intensively especially in the perpendicular direction to that one assumed by the conductive fibres that are visible on the surface after the application
• When the Mapefloor I 390 EDF has hardened, test a reference area of the system to check its dissipative capacity
• The number of checks and measurements of the dissipation capacity of the coating must be proportional to the area to be tested as indicated below:

• Clean tools used to prepare and apply Mapefloor I 390 EDF with ethanol immediately after use
• Once hardened, the product may only be removed using mechanical means
• Consumption: Max. 2.5kg/m² of Mapefloor I 390 EDF

Limitations

• The substrate’s moisture content must be no more than 4% and there must not be capillary rising damp (check by testing it with a sheet of polythene)
• Make sure the film of Primer W-AS N has completely hardened before applying Mapefloor I 390 EDF
• Before applying Mapefloor I 390 EDF, check the electrical conductivity of the surface of Primer W-AS N
• Do not apply Mapefloor I 390 EDF on dusty or crumbly substrates or that have not been prepared as specified and primed
• Do not apply Mapefloor I 390 EDF on substrates with oil or grease stains or dirt in general
• Mapefloor I 390 EDF contains special, electrically-conductive fillers which may produce colour or surface unevenness, but this will have no effect on the final performance of the product
• Do not dilute Mapefloor I 390 EDF with solvent or water
• Do not mix partial quantities of the components to avoid mixing errors; the product may not harden correctly
• Do not expose the mixed product to sources of heat
• Coatings made from Mapefloor I 390 EDF may change colour or fade if exposed to sunlight but this has no effect on the performance characteristics of the coating
• The coating may also change colour if it comes into contact with aggressive chemicals. A change in colour, however, does not mean that it has been damaged by the chemical
• Remove aggressive chemicals as soon as possible after they come into contact with Mapefloor I 390 EDF
• If rooms where the product is being used need to be warmed up, do not use heaters that burn fossil fuels, otherwise the carbon dioxide and water vapour given off into the air will affect the shine on the finish and ruin its appearance. Use electric heaters only
• Protect the product from water for at least 24 hours after application. Do not apply the product directly on cementitious substrates
• The temperature of the substrate during the application and hardening must be at least 3°C above the dew-point and the surrounding relative humidity must be max. 80%
• Use suitable specific cleaning equipment and detergent to clean the coating, depending on the type of dirt or stain to be removed
• The consumption of Mapefloor I 390 EDF must never exceed 2.5 kg/m², otherwise the dissipation properties of the system could be affected

Storage and Safety Instructions

• May be stored for 24 months in its original sealed packaging, in a dry area, at a temperature between +5°C to +30°C
• Protect from frost
• Instructions for the safe use of our products can be found on the latest version of the Safety Data Sheet (see 'Data Sheets' section above)
• When the product reacts, it generates considerable heat
• After mixing components A and B we recommend applying the product as soon as possible and to never leave the container unguarded until it is completely empty