SELF-LEVELLING EPOXY SYSTEM WITH A TOTAL SOLID CONTENT FOR ANTISTATIC, CONDUCTIVE INDUSTRIAL FLOORS; THICKNESS mm

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1 Mapefloor System AS SELF-LEVELLING EPOXY SYSTEM WITH A TOTAL SOLID CONTENT FOR ANTISTATIC, CONDUCTIVE INDUSTRIAL FLOORS; THICKNESS mm Products used: Primer SN - Primer W-AS - Copper Band - Mapefloor I 360 AS - Mapecolor Paste - Quartz Quartz 0.5 DESCRIPTION MAPEFLOOR SYSTEM AS is a self-levelling epoxy system used to form high-strength, anti-static, conductive industrial floors which are highly resistant to chemicals mechanical, impermeable to water, aggressive substances, liquids in general and resistant to frequent washing. Coatings made using MAPEFLOOR SYSTEM AS also have an attractive finish. WHERE TO USE Coatings of industrial floors subjected to medium volumes of traffic requiring a smooth, antistatic and conductive surface which is dust repellent and easy to clean, in areas where the buildup of static electricity must be prevented to protect goods being manufactured, such as in the electronics industries, or for safety purposes, such as in store rooms for inflammable substances, and in all those areas requiring conductive antistatic coating. MAPEFLOOR SYSTEM AS is used in: clean rooms; hospitals; store rooms and areas used to process inflammable or explosive substances; the pharmaceuticals industry; Data Centers. PERFORMANCE AND ADVANTAGES Smooth finish, easy to wash and maintain. May be coloured on site using MAPECOLOR PASTE. Waterproof. Electrically conductive, discharges build-up of static electricity to earthing points. Long-lasting, characterised by its high resistance to wear and abrasion from continuous pedestrian traffic and frequent washing. Resistant to most chemical products, such as dilute acids, base products, oil and fuel. Dust-repellent. Ease of maintenance. Sanitisable. May be used to form highly attractive, flat, seamless surfaces with high functional characteristics. Quick to apply and put in service. Guarantees an excellent costperformance ratio. CHEMICAL RESISTANCE Floors coated with MAPEFLOOR SYSTEM AS are resistant to: dilute mineral acids such as hydrochloric acid, nitric acid, phosphoric acid and sulphuric acid, and limited resistance to organic acids (refer to the resistance to chemicals table in the MAPEFLOOR I 360 AS Technical Data Sheet); alkalis, including sodium hydroxide at 50% concentration, and detergents normally used for cleaning floors up to 20-30%

2 Mapefloor System AS TECHNICAL DATA (after 7 days at +23 C) Adhesion* (DIN ISO 4624) N/mm² > 1.5 (failure of concrete) concentration, as long as they do not contain abrasive granules; all types of saline solution; oil, lubricants and fuel in general. ELECTRICAL CONDUCTIVITY Thanks to its special formulation and the special conductive fibres in the surface layer that discharge electric currents standards and to the nearest earthing point without sparking, coatings made using MAPEFLOOR SYSTEM AS prevent the formation and build-up of static electricity in compliance with current standards and norms regarding health and safety and the protection of equipment and people in the electronics and chemical industries, hospitals, areas where inflammable or explosive materials in general are processed, etc. COLOURS MAPEFLOOR SYSTEM AS is available in 19 RAL colours: refer to the colours in the MAPECOLOR PASTE range for MAPEFLOOR I 360 AS. YIELD The consumption levels indicated below are for a cycle applied at a temperature of between +15 C and +25 C and 80% maximum R.H. on the surface of a smooth, dry, compact, cured concrete screed with no rising damp, strong enough to withstand the loads to which the floor will be subjected when in service, and in all cases minimum 25 N/mm² compressive strength and minimum 1.5 N/mm² tensile strength, with a dry shake finish, polished with diamond disks or lightly shot-blasted. Rougher surfaces and lower temperatures lead to higher consumption of the products, extended curing times and delays before the area can be put into service. The consumption of PRIMER SN in particular may vary, depending on the type and depth of the substrate preparation. MAPEFLOOR SYSTEM AS: THICKNESS mm 1 coat: PRIMER SN kg/m² QUARTZ kg/m² (used as filler in the primer at a rate of 20% by weight*) Abrasion resistance* (TABER CS17 disk g revs - DIN 53109) mg Shore D* hardness after 3 days at +23 C (DIN 53505) 77 Compressive strength* after 28 days at +23 C (DIN EN 196-1) N/mm² Flexural strength* after 28 days at +23 C (DIN 196-1) N/mm² 40 Resistance at earthing point R E (EN 1081) Ohm 10 4 <R E<10 6 * MAPEFLOOR I 360 AS not fillerized. N.B.: The amount of QUARTZ 0.5 filler may vary according to the roughness and porosity of the substrate and whether the surface of PRIMER SN needs to be broadcast before applying another skim coat using the same product. Earth connection kits: COPPER BAND as required Intermediate conductive layer: PRIMER W-AS g/m² Final anti-static, conductive protection layer: MAPEFLOOR I 360 AS (A+B + MAPECOLOR PASTE) 2.0 kg/m² QUARTZ 0.25 (max 2.5 kg/m²) 0.4 kg/m² (max 0.5 kg/m²) (used as filler in MAPEFLOOR I 360 AS at a rate of 20% by weight) N.B.: The amount of QUARTZ 0.25 may vary slightly according to the surrounding temperature (e.g. the amount of filler may be reduced slightly at low temperatures). Important: If coloured MAPEFLOOR I 360 AS is available, MAPECOLOR PASTE doesn t have to be used. This system must be strictly adhered to. The consumption of PRIMER SN is heavily influenced by the absorption, roughness and porosity of the substrate SURFACE PREPARATION 1. Characteristics of the substrate Before applying the MAPEFLOOR SYSTEM AS cycle, an accurate, in-depth analysis of the substrate upon which the finish is to be applied must be carried out. To make sure that a good result is obtained, verify the following: The substrate must be sufficiently saturated, skimmed and levelled using PRIMER SN to form a surface as even as possible. There are no materials on the substrate which could impede the adhesion of successive layers, such as: cement laitance; dust or areas which are loose or not well bonded; protective wax, curing agents, paraffin or efflorescence; oil stains or layers of dirty resin; traces of paint or chemical products. Other contaminants which may compromise bonding of the coating must be removed before carrying out installation. If the substrate is contaminated, it is ESSENTIAL to implement a suitable preparation technique. If necessary, contact our company s Technical Services Department for advice. That tear strength of the substrate is higher than 1.5 N/mm². That the level of humidity in the substrate is no higher than 4%, and that there is an adequate vapour barrier installed. For floors that have just been installed, wait until the concrete is fully cured before applying the resin system. If it is not fully cured, apply a suitable

3 preliminary layer such as TRIBLOCK TMB for both damp substrates and substrates with rising damp to prevent detachment and/or blistering of MAPEFLOOR SYSTEM AS. If all the above conditions are met, MAPEFLOOR SYSTEM AS may be applied on concrete industrial floors, conventional or polymer-modified cementitious screeds, controlledshrinkage screeds such as those made using MAPECEM or TOPCEM and old cement blocks and ceramic tiles, if prepared correctly. 2. Substrate preparation It is very important that the surface is prepared correctly to guarantee correct application and get optimum performance from the MAPEFLOOR SYSTEM AS epoxy cycle. The most suitable method to prepare the surface is shot-blasting or grinding with a diamond disk. All dust must then be removed with an industrial vacuum cleaner. Do not use chemical preparation methods, such as acid rinsing, heat or aggressive tools, otherwise the substrate may be damaged. Any defects present, such as holes, pitting, cracking, etc., must be repaired beforehand using EPORIP, PRIMER SN or MAPEFLOOR I 300 SL, depending on the width and depth of the defects and cracks. If the substrate needs to be consolidated, use PRIMER MF or PRIMER EP (choose the most suitable product according to the porosity, which will also have an effect on the consumption rate). If deep hollows or highly deteriorated areas are present on the substrate, repair these areas using MAPEFLOOR EP19 three-component epoxy mortar or with products from the MAPEGROUT range. Repair damaged joints using the same products. If any of the above guidelines are not strictly adhered to, the quality of the work may be poor. 3. Preliminary checks before application Make sure that all the checks according to point 1 Characteristics of the substrate have been carried out, and that all the operations indicated in point 2 Substrate preparation have been carried out correctly. The surrounding temperature must be higher than +8 C (the ideal application temperature is between +15 C and +25 C) and the temperature of the substrate must be at least +3 C higher than the dew-point temperature. Atmospheric relative humidity levels must be no higher than 80%. 4. Preparation and application of the products Carefully follow the preparation instructions according to the Technical Data Sheet for each single product used to form the complete system, PRIMER SN, PRIMER W-AS and MAPEFLOOR I 360 AS. Self-levelling coating: thickness mm Primer (PRIMER SN) Pour component B (4 kg) into component A (16 kg) and mix with a drill at low-speed ( rpm) with a spiral mixing attachment for at least 2 minutes to form a smooth, homogenous even mix. While mixing, add 4 kg of QUARTZ 0.5 to the mix as soon as it has been prepared and continue mixing for several minutes to form a smooth, even paste. Pour the mix onto the floor to be coated and spread it out evenly and uniformly using a smooth trowel or a smooth rake. Do not sprinkle the surface of the primer while it is still fresh, unless a second coat of PRIMER SN is required to close all the pores on particularly porous, uneven substrates. After applying the first coat of PRIMER SN, if the surface is still porous, is not compact or if there are pinholes caused by a substrate which is particularly absorbent, small craters or pinholes and defects could develop in the MAPEFLOOR SYSTEM AS finishing coat. In such cases, skim the surface again with PRIMER SN, as described above, until all the An example of how the earthing point connector units may be positioned

4 porosity has been completely eliminated. The final layer of primer must never be sprinkled with quartz sand. Installing the earth connection kits The electric connections of MAPEFLOOR SYSTEM AS to the earthing points are made by installing special strips of copper called COPPER BAND. The strips are laid on the hardened primer near to a wall, a pillar, etc., by applying a metre long piece on the surface of the floor, and then folding it up on the wall by at least 50 cm. Be very careful when handling the strips of copper and folding them onto the wall so that they are not torn or damaged. The ends of the copper strips are then connected to the earthing points by a qualified electrician. Each strip connected to an earthing point is sufficient for around 100 m² of MAPEFLOOR SYSTEM AS (a circular area around 6 metres in diameter). If it is not possible to cover the entire area of the floor by using only these types of connections, the furthest ends will have to be connected to another piece of COPPER BAND. The layout and number of earthing connections, therefore, are heavily influenced by the shape and layout of the area where MAPEFLOOR SYSTEM AS is applied, and must be designed for each case. There must be at least two connections to earth in each room coated with MAPEFLOOR SYSTEM AS and at least one connection every 100 m². If the pattern of the control joints is followed by copying them in the resin coating, the two boards separated by the check joint must be connected electrically with the strip of COPPER BAND around 1 metre long. Splay the copper strip in the middle to form a dovetail and place it in the joint, then lay it perpendicular to the joint along the surface for approximately 50 cm on each side of the joint. This operation must be carried out before filling the joints and applying the coating. When the joints are cut into the finished coating in the same pattern as the existing joints, be very careful to avoid cutting the copper strips. For further safety, we recommend opening the joint a little for a few centimetres where the connection strip is placed so that the copper strip may be splayed open even more into a dovetail shape. The pattern of expansion joints, construction joints and dynamic joints must also be respected and carefully cut in the MAPEFLOOR SYSTEM AS. Expansion joints and control joints in the floor must be sealed with MAPEFLEX PU45. Intermediate conductive layer (PRIMER W-AS) To prepare the mix, blend the two components of PRIMER W-AS separately with an electric mixer at low speed, pour component A into the container of component B and then mix together with a drill at low speed for at least 2 minutes until they are thoroughly blended. Apply a single coat of PRIMER W-AS with a short-haired roller on the hardened primer and over the copper strips placed on the surface. When hardened, PRIMER W-AS will be black. Consumption of this product must never exceed g/m², otherwise the electrical conductivity of the system could be compromised. Never sprinkle quartz sand on the surface of PRIMER W-AS while it is still fresh. When the film of PRIMER W-AS has hardened, test a reference area of the system to check its conductivity. The resistance R E of a point on the surface of the coating to the closest earthing point must be 10 3 < R E < 10 5 Ohm (IEC or EN 1081). Self-levelling, anti-static, conductive protection layer (MAPEFLOOR I 360 AS) Mix component A of MAPEFLOOR I 360 AS with a low speed electric mixer; add to it 4 kg of QUARTZ 0.25 and mix again until an homogeneous mix is achieved. PRIMER W-AS MAPEFOAM MAPEFLEX PU45 MAPEFLOOR I 360 AS PRIMER SN EARTHING POINT COPPER BAND CONCRETE FLOORING MAPEFLOOR I 360 AS PRIMER W-AS COPPER BAND PRIMER SN CLS An example of a U-clamp over a joint and installing the earthing point connector unit with Copper Band

5 Mapefloor System AS Then pour component B into the container of component A, add MAPECOLOR PASTE (0.7 kg of MAPECOLOR PASTE for each 20 kg kit A+B of MAPEFLOOR I 360 AS) and mix with a drill at low speed for at least 2 minutes until thoroughly blended. Apply a single coat up to mm thick of MAPEFLOOR I 360 AS with a notched trowel or spreader (with V shaped notches) over all the surface to be coated. Immediately after spreading on the self-levelling product, go over the surface with a spiked roller to eliminate any air entrapped in the product during mixing. We recommend rolling the surface with the spiked roller in both directions at ninety degrees to each other. When the film of MAPEFLOOR I 360 AS has hardened, test a reference area of the system to check its conductivity. The number of tests to carry out is proportional to the area to be tested, as follows: Size of Minimum number the area of tests to carry out < 10 m² 1 test per m² 10 < m² <100 from 10 to 20 tests > 100 m² 10 tests per 100 m² If a value is not within the required limits, the test must be repeated by moving the instrument at least 50 cm. If the second value is valid, the entire area must be accepted. The values measured may be heavily influenced by the surrounding conditions, the type of instrument used, the person who takes the measurements or takes part in the test, etc. We recommend carrying out sample tests beforehand to establish and accept the test methods and to check the instruments. 5. Hardening and step-on times At +20 C, coatings of MAPEFLOOR SYSTEM AS set to foot traffic after around 24 hours, and after 3 days when subjected to light traffic. Complete hardening and maximum strength are reached after approximately 7 days. Lower temperatures lead to extended curing and lengten the hardening and step-on times of the coating, higher temperatures may reduce these times. 6. Warning Protect MAPEFLOOR SYSTEM AS from water and condensation for at least 24 hours after application. The conductive fibres in MAPEFLOOR I 360 AS may make the colour of the coating slightly different and it may not be a perfect match with the specified RAL colour. The fibres close to the surface may also be slightly visible. The colour of the material may vary slightly between different batches, even if they are the same RAL colour, and may also vary according to variations in the surrounding conditions during application. Surfaces in adjacent areas must be coated with products from the same production batch. When the coating is exposed to sunlight or aggressive chemicals, it may yellow slightly or the colour may change slightly. This phenomenon is purely aesthetic and has no effect on the performance of the system. If the area where the coating is applied needs to be heated, do not use gas or fuel burners; the water vapour and carbon dioxide given off could alter the appearence of the coating. Use electric heaters only. CLEANING AND MAINTENANCE Regular cleaning and maintenance increase the life of the treated floor, improves its aesthetic properties and reduces its tendency to collect dirt. Floors made using MAPEFLOOR SYSTEM AS are generally easy to wash with neutral or alkaline detergents diluted 5-10% in water. Special detergents and cleaning tools are readily available for cleaning resin floors. MAPEFLOOR MAINTENANCE KIT is available for maintenance operations, and includes MAPELUX LUCIDA metallic wax, MAPEFLOOR WAX REMOVER and MAPEFLOOR CLEANER ED detergent for daily cleaning operations. Our Technical Services Department is available for any information required. NOTES Recommendations regarding safe handling of the products are contained in the Safety Data Sheet for each single product in the cycle. However, the use of protective gloves and goggles is recommended when mixing and applying the products. If the cycle is applied on different surfaces, in climatic conditions and/or for final uses not mentioned above, please contact the Technical Services Department at MAPEI S.p.A.

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