PRODUCT DATA SHEET Sikaflex® Construction+

1 PRODUCT DATA SHEETS ikaflex Construction+ 1-PART FLEXIBLE SEALANT FOR CONCRETE AND PRECAST JOINTSDESCRIPTIONS ikaflex Construction+ is a 1-component, moisture-curing, elastic joint for use in hot and tropical climatic Construction+ is designed as a general pur-pose sealant for sealing joints in building constructionsuch as movement, expansion and construction/isola-tion joints around windows and doors, facades, clad-dings etc. in concrete, brick, wood, metal and PVC sec-tions and structures / ADVANTAGESVery good resistance to weathering Movement capability of 35 (ASTM C 719) Over paintable Bubble-free curing Good workability Good adhesion to many substrates Solvent-free Very low emissions SUSTAINABILITYS ikaflex Construction+ conforms to LEED EQc content < 30 g/l (US EPA Method 24) SCAQMD, Rule 1168 BAAQMD, Reg. 8, Rule 51 EMICODE EC1 PLUS R M1 (Emission Class for Building Material) APPROVALS / CERTIFICATESASTM C 920 class 35 EN 15651-1 F EXT-INT CC 25 HM ISO 11600 F 25 HM PRODUCT INFORMATIONC ompositioni-Cure Technology polyurethanePackaging600 mL foil pack, 20 foil packs per boxColourWhite, cream white, beige, concrete grey and jasmine (further coloursavailable upon request)Shelf lifeSikaflex Construction+ has a shelf life of 15 months from the date of pro-duction, if it is stored in undamaged, original, sealed packaging, and if thestorage conditions are conditionsSikaflex Construction+ shall be stored in dry conditions, where it is protec-ted from direct sunlight and at temperatures between +5 C and +25 ~ kg/l(ISO 1183-1) PRODUCT Data SheetSikaflex Construction+ July 2016, Version / 4 TECHNICAL INFORMATIONS hore A Hardness~28 (after 28 d) (ISO 868)

2 Secant Tensile Modulus~ N/mm2 at 100 % elongation (23 C)(ISO 8339)~ N/mm2 at 100 % elongation (-20 C) Elongation at Break~800 %(ISO 37)Elastic Recovery~90 %(ISO 7389)Tear Propagation Resistance ~ N/mm (ISO 34)Movement Capability 35 %(ASTM C719)Resistance to Weathering 8 (ISO / DIS 19862)Service Temperature-40 C min. / +70 C DesignThe joint width must be designed to suit the joint movement required andthe movement capability of the sealant. The joint width shall be 10 mmand 50 mm. A width to depth ratio of 2 : 1 must be maintained (for ex-ceptions, see table below). Standard joint widths for joints between concrete element:(Movement Capability: 35 % (ASTM C719) and T: 80 C)Joint distance [m]Min. joint width [mm]Min. joint depth [mm]21010412106181082211102814 For larger joints following depth should be maintained:Joint width [mm]Joint depth [mm]30153518402045215022 All joints must be correctly designed and dimensioned in accordance withthe relevant standards, before their construction.

3 The basis for calculationof the necessary joint widths are the type of structure and its dimensions,the technical values of the adjacent building materials and the joint sealingmaterial, as well as the specific exposure of the building and the more detailed advice and instructions please contact our Technical De-partment. APPLICATION INFORMATIONC onsumptionApproximative jointlength [m] per 600 mLfoil packJoint width [mm]Joint depth [mm] MaterialUse closed cell, polyethylene foam backing Data SheetSikaflex Construction+ July 2016, Version / 4 Sag Flow0 mm (20 mm profile, 50 C)(ISO 7390)Ambient Air Temperature+5 C min. / +40 C max. (min. 3 C above dew point temperature)Substrate Temperature+5 C min. / +40 C Rate~3 mm/24 h (23 C / 50 % )(CQP 049-2)Skinning time~65 min (23 C / 50 % )(CQP 019-1)Tooling Time~55 min (23 C / 50 % )(CQP 019-2) APPLICATION INSTRUCTIONSSUBSTRATE PREPARATIONS ikaflex Construction+ generally has strong adhesionwithout primers or activators to most clean, dry andsound precast concrete substrate must be clean, dry, sound and homo-geneous, free from oils, grease, dust and loose or fri-able particles.

4 sikaflex Construction+ adheres withoutprimers and/or , for optimum adhesion and critical, high per-formance applications, such as on multi-story build-ings, highly stressed joints, extreme weather exposureor water immersion, the following priming and/or pre-treatment procedures shall be followed: Porous substratesConcrete, aerated concrete and cement basedrenders, mortars and bricks shall be primed usingSika Primer-3 N applied with a brush. Before sealing,allow a flash-off time of > 30 minutes (< 4 hours). Non-porous substratesAluminium, anodised aluminium, stainless steel, gal-vanised steel, powder coated metals or glazed tileshave to be cleaned and pre-treated using Sika Aktiv-ator-205, wiped on with a clean towel. Before sealing,allow a flash-off time of > 15 minutes (< 2 hours).Other metals, such as copper, brass and titanium-zinc,also have to be cleaned and pre-treated using Sika Aktivator-205, wiped on with a clean towel.

5 After thenecessary flash-off time, use a brush to apply Sika Primer-3 N and allow a further flash-off time of > 30minutes (< 4 hours) before sealing the has to be cleaned and pre-treated using Sika Primer-215 applied with a brush. Before sealing, allowa flash-off time of > 30 minutes (< 4 hours).For more detailed advice and instructions please con-tact our Technical : Primers are adhesion promoters. They areneither a substitute for the correct cleaning of a sur-face, nor do they improve the strength of the surfacesignificantly. APPLICATION METHOD / TOOLSS ikaflex Construction+ is supplied ready to the necessary substrate preparation, insert asuitable backing rod to the required depth and applyany primer if necessary. Insert a foil pack into the seal-ant gun and extrude sikaflex Construction+ into thejoint making sure that it comes into full contact withthe sides of the joint and avoid any air Construction+ sealant must be firmly tooledagainst the joint sides to ensure adequate is recommended to use masking tape where exactjoint lines or neat lines are required.

6 Remove the tapewithin the skin time. Use a compatible tooling agent(example Sika Tooling Agent N) to smooth the jointsurfaces. Do not use tooling products sikaflex Construction+ is dry-tooled it shows aslightly structured, concrete-like surface. If it is wet-tooled (using a compatible tooling agent, exampleSika Tooling Agent N) it shows a smooth OF EQUIPMENTC lean all tools and application equipment immediatelyafter use with Sika Remover-208 and/or Sika Top-Clean T. Once cured, residual material can only be re-moved INFORMATIONM aterial Data SHEET (SDS) Pre-treatment Chart Sealing & Bonding Method Statement Joint Sealing Method Statement Joint Maintenance, Cleaning andRenovation Technical Manual Facade Sealing PRODUCT Data SheetSikaflex Construction+ July 2016, Version / 4 IMPORTANT CONSIDERATIONSS ikaflex Construction+ can be over-painted withmost conventional facade coating paint , paints must first be tested to ensure com-patibility by carrying out preliminary trials (exampleaccording to ISO technical paper: Paintability andPaint Compatibility of Sealants).

7 The best over-paint-ing results are obtained when the sealant is allowedto fully cure first. Note: non-flexible paint systemsmay impair the elasticity of the sealant and lead tocracking of the paint film. Colour variations may occur due to exposure tochemicals, high temperatures and/or UV-radiation(especially with the colour shade white). However, achange in colour is purely of aesthetic nature anddoes not adversely influence the technical perform-ance or durability of the PRODUCT . Do not use sikaflex Construction+ on natural stone. Do not use sikaflex Construction+ on bituminoussubstrates, natural rubber, EPDM rubber or on anybuilding materials which might bleed oils, plasticizersor solvents that could attack the sealant. Do not use sikaflex Construction+ to seal joints inand around swimming pools. Do not use sikaflex Construction+ for joints underwater pressure or for permanent water immersion.

8 Do not expose uncured sikaflex Construction+ to al-cohol containing products as this may interfere withthe curing reaction. BASIS OF PRODUCT DATAAll technical data stated in this Data SHEET are basedon laboratory tests. Actual measured data may varydue to circumstances beyond our RESTRICTIONSNote that as a result of specific local regulations thedeclared data and recommended uses for this productmay vary from country to country. Consult the localProduct Data SHEET for the exact PRODUCT data , HEALTH AND SAFETYFor information and advice on the safe handling, stor-age and disposal of chemical products, users shall referto the most recent Safety Data SHEET (SDS) containingphysical, ecological, toxicological and other safety-re-lated NOTESThe information, and, in particular, the recommenda-tions relating to the application and end-use of Sikaproducts, are given in good faith based on Sika's cur-rent knowledge and experience of the products whenproperly stored, handled and applied under normalconditions in accordance with Sika's recommenda-tions.

9 In practice, the differences in materials, sub-strates and actual site conditions are such that no war-ranty in respect of merchantability or of fitness for aparticular purpose, nor any liability arising out of anylegal relationship whatsoever, can be inferred eitherfrom this information, or from any written recom-mendations, or from any other advice offered. Theuser of the PRODUCT must test the PRODUCT s suitabilityfor the intended application and purpose. Sika re-serves the right to change the properties of itsproducts. The proprietary rights of third parties mustbe observed. All orders are accepted subject to ourcurrent terms of sale and delivery. Users must alwaysrefer to the most recent issue of the local PRODUCT DataSheet for the PRODUCT concerned, copies of which willbe supplied on +-en-AE-(07-2016) NORTHERN GULFB ahrain / Qatar / KuwaitTel: +973 177 SOUTHERN GULFUAE / Oman / SICTel: +971 4 439 SAUDI ARABIAR iyadh / Jeddah / DammamTel: +966 11 217 Data SheetSikaflex Construction+ July 2016, Version / 4