Benfer Benferflex C2 Tile Adhesive further informationAREAS OF APPLICATION:Laying of porcelain, ceramic tiles and water stable natural stones on:Interior and exterior wall and floorHeavy duty areasPublic and private swimming poolsThe consumption changes according to planarity of the support, to the used trowel and to the laying system (simple or double gluing).SupportTiled surfaceLaying SystemTrowel type mmConsumption kg/m²Int. floorS 1100 3600simple gluing double gluing double gluing8/10 10 / 15 204/5 6/7 8Ext. floor400 1100double gluing double gluing8 10/15/205 6/7/8Int. wallS 400 2000simple gluing double gluing double gluing6 8/10 103.5 5/6 6Ext. wallS 400 2000double gluing double gluing double gluing6 8/10 104.5 5/6 6CONTRACT ITEM SPECIFICATIONS: Floor and wall coverings must be applied with a flexible, one part, cement based fiber reinforced adhesive, classified C2TE S1 in accordance with EN 12004, like BENFERFLEX C2, by BenferSUBSTRATES:ConcreteCement-based screeds, standard or heated with water system or electric resistanceCement-based plasterFlexible waterproofing membranes made up of cement and polymers (ACQUASHIELD-2KF)Cement based blocksINSIDE ONLY:Fluid cement-based screeds (prior application of an appropriate primer if demanded), standard or heated with water system or electric resistanceFluid anhydrite-based screeds (prior application of an appropriate primer), standard or heated with water system or electric resistanceOld ceramic tiles (prior application of an appropriate primer)Standard or waterproof plasterboardElastomeric waterproofing membranes (ACQUASHIELD-GEL)Wooden boards (prior application of an appropriate primer)MAXIMUM SIZES:Internal floors with maximum length of longest tile side up to 360 cm.External floors with maximum length of longest tile side up to 120 cm.Internal walls with maximum length of longest tile side up to 360 cmExternal walls with maximum length of longest tile side up to 90 cmSee the choice table to verify size limits by tile/substrates characteristics.METHODS OF USE:SUBSTRATES PREPARATION:The substrates must be solid, free from oil, grease and dust. Any paint-work must be in good condition, washed and degreased. If this is not the case, the paint must be removed. Gypsum or calcium sulphate based or absorbent substrates substrates must be previously treated with BENFERPRIM.MIXTURE PREPARATION:Mix BENFERFLEX C2 with 27% of water (powder into water, not the other way around) until you obtain a homogeneous, bright, plastic adhesive. Leave it to rest 5 minutes, and then re-mix rapidly. The adhesive is now ready for use and it must be used within 3 hours.TILING: INTERIOR: Lay the tiles while exerting a good pressure on the tiles surface, so that contact between tile and adhesive will be at least of 95-100%. EXTERIOR: The contact between tile and adhesive must be 100% so to avoid the eventual rain infiltrations that in case of frost could cause the detachment of the tiles. Therefore, it is suggested to spread also a layer of BENFERFLEX C2 on the back of the tiles.We suggest to do the same things even inside for:Floor tiles largest than 500 cm² with water absorption of the tiles ≥ 0.5% (e.g. porcelain tiles)Floor tiles largest than 1100 cm² with all the other types of tilesWall tiles largest than 120 cm² with water absorption of the tiles ≥ 0.5% (e.g. porcelain tiles) • Wall tiles largest than 500 cm² with all the other types of tilesSpecial applications such as industrial refrigerators, basins, swimming pools, etc.It is essential to leave a joint of at least 3 mm between each tile, and to ensure that the tiling conforms with the expansion joints of the structure, to be elastically sealed, as well as the joints between walls, and the joints between wall and floor.In any case expansion joints and perimeter joints must be carried out every about 20 m² .FULL SERVICE:At 23°C and with 50% relative humidity, the open time of the mix is approximately 20 minutes. In unfavourable conditions, these times may be significantly reduced. You are therefore advised to spread the adhesive a little at a time and to check frequently that it has not formed a surface film before laying the tile. To improve workability, especially in summer, it is beneficial to exclude draughts. In the first 48 hours after application, the adhesive does not withstand frost. Flooring installed using BENFERFLEX C2 can be walked over cautiously after about 12 hours for grouting, (24 hours for temperatures under 15°C) and full service after 7 days.CLEANING: The cleaning of the coating must be effected by means of a damp cloth or sponge when the adhesive has already started to set and it can be done using greater quantity of water only after 48 hours from tiling.STORAGE: In the original closed package in a cool dry place.SHELF LIFE: 12 months from the date printed on the packagingBenfer Benferflex C2Classification EN 12004:C2TES1BasisCement, aggregates, additivesColourWhite and greyApparent mass volume1.25 kg/dm3Maximum grain size0.5 mmStorage and Duration12 months in the original closed package in a cool dry placeDanger of toxicityNo. The product may cause irritation to the eyes and skin due to presence of cementInflammableNoMixture ratio27%, 6.75 lt water/25 kg bag; 1.3 lt water/5 kg bagMixture consistencyCreamyDensity of paste1.65 kg/dm³Application temperatureFrom 5°C to 35°CPot Life3 hours*Open time30 minutes*Vertical sliding to EN 1308Max thickness15 mmFoot traffic after12 hours*Grouting12 hours*Full service7 days*Final performance:Adhesion (after 28 days 1.0 N/mm2Adhesion after warming 1.0 N/mm2Adhesion after water immersion 1.0 N/mm2Adhesion after frost-thaw cycles 1.0 N/mm2Deformability to EN 120042.6 mmTemperature resistance by30°C to 90°C , * at 23°C and 50% relative humidity Categories: Porcelain Tile Adhesives, Tile Adhesives - Pallet Deals
