Sikalastic-821 LV

Product Data SheetEdition 16.04.2009Revision no.: 0Identification no:01 07 02 03 001 0 000020Sikalastic®-821 LVSikalastic ® -821 LVSpray applied waterproofing membraneConstructionProductDescriptionUsesCharacteristics /AdvantagesTestsApproval / StandardsExternal SupervisionSikalastic ® -821 LV is a two part, elastic, crack-bridging, rapid-curing polyurethanemembrane. Sikalastic ® -821 LV is for machine application only.• For use as a waterproofing membrane underneath asphalt on concrete bridgedecks• For use as a waterproofing membrane for other concrete structures and onnon-trafficked concrete areas with an additional top coat for UV-protection• For use as a waterproofing layer for car parks• Excellent crack-bridging properties• Highly elastic waterproofing membrane• Contains no fillers• Low viscosity• Fast curing (application with 2-part hot spray equipment)Conforms to the requirements of ZTV-BEL, Part 3, 1995 edition.Certificate: P 2366; incl. shear bond test by the Polymer Institute Dr. Stenner GmbHfor the waterproofing of bridge decks.The primer Sikagard-186 complies with TL/TP-BEL-EP of ZTV-BEL-B 1/87 andTL/TP-BEL-EP of ZTV-BEL-B (1998 draft).Certificate: P 1678-1 by the Polymer Institute Dr. Stenner GmbH.Conforms to the requirements of DIN 4102 Part 1 and 14 fire resistance class B1(Fire resistance). Certificate No. 16-900 8156 000 b by MPA Stuttgart.Conforms to the requirements of German Standard: DafStb Rili-SIB 2001 OS 10and OS 11.The Polymer Institute Dr. Stenner GmbH.Product DataFormAppearance / Colours Resin - Part A: grey or yellowishHardener - Part B: clear / brownishGrey ~ RAL 7005 or unpigmented (yellowish)Packaging Part A: 209 kg drum, 1044 kg IBCPart B:211 kg drum, 1054 kg IBC1 1/8Sikalastic®-821 LV

StorageStorage Conditions /Shelf LifePart A: 12 monthsPart B: 9 monthsFrom date of production if stored properly in original, unopened and undamagedsealed packaging in dry conditions at temperatures between +5°C and +30°C.Technical DataChemical BasePolyurethaneDensity Part A: ~ 1.044 kg/litrePart B: ~ 1.054 kg/litre (DIN EN ISO 2811-1)Mixed resin:~ 0.988 kg/litreAll Density values at +23°CCuring Speed /RateSolid Content > 99%ViscosityLayer ThicknessMechanical / PhysicalPropertiesFrom +8°C to +45°C substrate temperature:Start of setting phase after 20 - 25 seconds.Part A: ~ 3900 mPasPart B: ~ 5900 mPasMinimum 2 mmTensile Strength ~ 8.7 N/mm 2 (28 days / +23°C) (DIN 53504)Shore Hardnessat +8°Cat +23°CAfter 1 hour 53 - 56 52 - 56After 24 hours 70 - 73 ~ 73After 28 days 71 - 73 73 - 74Elongation at Break ~ 380% (28 days / +23°C) (DIN 53504)Crack-Bridging CapacityDynamic crack-bridging properties of up to 0.3 mm at -20°C and static crackbridgingproperties of up to 1.0 mm, even after the application of hot pouredasphalt, artificial ageing and long term contact with bitumen.The indicated properties and characteristic values are not dependent on the curingtemperature.ResistanceChemical ResistanceThermal ResistanceSikalastic ® -821 LV is generally resistant to:- De-icing salts- Bitumen- AlkalisSikalastic ® -821 LV is short-term resistant to hot poured asphalt applied at up tomax. +240°C.The elastic properties are maintained at temperatures as low as -30°C.2 2/8Sikalastic®-821 LV

SystemInformationSystem StructureSystem for bridge decks with hot poured asphalt:Layer thickness: ≥ 2 mmPrimer: 1 - 2 x Sikagard ® -186 1 ),Lightly broadcast with quartz sand 0.3 - 0.8 mmWaterproofing: 1 x Sikalastic ® -821 LVTack-coat: 1 x Sikalastic ® -823Asphalt:Hot poured asphaltSystem for bridge decks with hot rolled asphalt:Layer thickness: ≥ 2 mmPrimer: 1 - 2 x Sikagard ® -186 1 ),Lightly broadcast with quartz sand 0.3 - 0.8 mmWaterproofing: 1 x Sikalastic ® -821 LVTack-coat: 1 x Sikafloor ® -161Broadcast with granite shippings 2/5 mmAsphalt:1 x Sikalastic ® -825Hot rolled asphaltSystem for structures with UV-exposure:Layer thickness: ≥ 1.5 - 1.8 mmPrimer: 1 x Sikagard ® -186 1 ),Lightly broadcast with quartz sand 0.3 - 0.8 mmWaterproofing: Sikalastic ® -821 LVUV-protection: 1 x Sikalastic ® -445System for structures without UV-exposure:Layer thickness: ≥ 1.5 -1.8 mmPrimer: 1 x Sikagard ® -186 1 ),Lightly broadcast with quartz sand 0.3 - 0.8 mmWaterproofing: 1 x Sikalastic-821 LVSystem for parking decks (“Sika CarDeck Professional” system OS 10):Layer thickness: ≥ 2 mmPrimer: 1 x Sikagard ® -186 1 ),Lightly broadcast with quartz sand 0.3 - 0.8 mmWaterproofing: 1 x Sikalastic ® -821 LVWearing course: 1 x Sikafloor ® -355 N (filled with 20% quartz sand 0.1-0.3 mm)Broadcast with quartz sand 0.7 - 1.2 mmSeal coat: 1 x Sikafloor ® -354 or 1 x Sikafloor ® -359System for parking decks (“Sika CarDeck Professional” system OS 11 a):Layer thickness: ≥ 2 mmPrimer: 1 x Sikagard ® -186 1 ),Lightly broadcast with quartz sand 0.3 - 0.8 mmWaterproofing: 1 x Sikalastic ® -821 LVWearing course: 1 x Sikafloor ® -355 N (filled with 20% quartz sand 0.1-0.3 mm)Broadcast with quartz sand 0.7 - 1.2 mmSeal coat: 1 x Sikafloor ® -354 or 1 x Sikafloor ® -359The system configuration as described must by fully complied with and may not bechanged.1 ) Instead of Sikagard ® -186, the alternative products Sikafloor ® -156 or Sikafloor ® -159 or Sikafloor ® -161 may be used as a primer.3 3/8Sikalastic®-821 LV

Application DetailsConsumption / DosageCoating System Product ConsumptionBonding bridge (whenexceeding the max. waitingtime, e.g. overlaps)System for bridge decks withhot poured asphaltSystem for bridge decks withhot rolled asphalt1x Sikalastic ® -810 + 15 wt.-%Thinner C(Between Sikalastic ® -821 LVand Sikalastic ® -821LV/Sikalastic ® -822)2 x Sikagard ® -186,Lightly broadcast with quartzsand, 0.3 - 0.8 mm1 x Sikalastic ® -821 LV1 x Sikalastic- ® -8231 - 2 x Hot poured asphalt2 x Sikagard ® -186,Lightly broadcast with quartzsand, 0.3 - 0.8 mm1 x Sikalastic ® -821 LV1 x Sikafloor ® -161,Lightly broadcast with graniteshippings 2/5mm mm0.05 - 0.09 kg/m²0.3 - 0.5 kg/m²/layer1.0 - 1.5 kg/m²~ 0.99 kg/m 2 /mm0.09 - 0.110 kg/m²1.5 - 4 cm0.3 - 0.5 kg/m²/layer1.0 - 1.5 kg/m²~ 0.99 kg/m 2 /mm0.3 – 0.5 kg/m²1.7 - 2.0 kg/m²System for structures withUV-exposureSystem for structures withoutUV-exposureOS 11 System for parkingdecks “Sika CarDeckProfessional”1 x Sikalastic- ® -825Hot rolled asphalt1 x Sikagard ® -186,Lightly broadcast with quartzsand, 0.3 - 0.8 mm1 x Sikalastic ® -821 LV1 x Sikalastic- ® -4451 x Sikagard ® -186,Lightly broadcast with quartzsand, 0.3 – 0.8 mm1 x Sikalastic ® -821 LV1 x Sikagard ® -186,Lightly broadcast with quartzsand, 0.3 - 0.8 mm0.4 – 0.6 kg/m²0.3 - 0.5 kg/m²1.0 - 1.5 kg/m²~ 0.99 kg/m 2 /mm~ 0.8 kg/m²0.3 - 0.5 kg/m²1.0 - 1.5 kg/m²~ 0.99 kg/m 2 /mm0.3 - 0.5 kg/m²1.0 - 1.5 kg/m²1 x Sikalastic ® -821 LV1 x Sikafloor ® -355 N + 20% QS0.1 - 0.3 mmBroadcast to excess with quartzsand 0.7 - 1.2 mm1 x Sikafloor ® -354 or1 x Sikafloor ® -359~ 1.5 kg/m²~ 1.5 kg/m 2 (1.2 kg/m 2binder + 0.3 kg/m 2 filler)~ 3.5 kg/m²~ 0.7 - 0.9 kg/m² + up to5 wt.-% Thinner COS 10 System for parkingdecks “Sika CarDeckProfessional”1 x Sikagard ® -186,lightly broadcast with quartzsand, 0.4 - 0.7 mm0.3 - 0.5 kg/m²1.0 - 1.5 kg/m²1 x Sikalastic ® -821 LV1 x Sikafloor ® -355 N+ 20% QS0.1 - 0.3 mm~ 1.9 kg/m²~ 1.5 kg/m 2 (1.2 kg/m 2binder + 0.3 kg/m 2 filler)Broadcast to excess with quartzsand 0.7 - 1.2 mm1 x Sikafloor ® -354 or1 x Sikafloor ® -359~ 3.5 kg/m²~ 0.7 - 0.9 kg/m² + up to5 wt.-% Thinner C4 4/8Sikalastic®-821 LV

Substrate QualitySubstrate PreparationApplicationConditions /LimitationsSubstrate TemperatureAmbient TemperatureSubstrate MoistureContentRelative Air HumidityDew PointApplicationInstructionsMixingThese figures are theoretical and do not allow for any additional material due tosurface porosity, surface profile, variations in level and wastage etc.For an optimal bonding between hot-rolled asphalt and waterproofing layer aminimum rolling temperature of the asphalt of ≥ 160°C is required.The concrete substrate must be sound and of sufficient compressive strength(minimum 25 N/mm 2 ) with a minimum pull off strength of 1.5 N/mm 2 .The substrate must be clean, dry and free of all contaminants such as dirt, oil,grease, coatings and surface treatments, etc.If in doubt, apply a test area first.Concrete substrates must be prepared mechanically using abrasive blast cleaningor scarifying equipment to remove cement laitance and achieve an open texturedsurface.Weak concrete must be removed and surface defects such as blowholes and voidsmust be fully exposed.Repairs to the substrate, filling of blowholes/voids and surface levelling must becarried out using appropriate products from the Sikafloor ® , SikaDur ® and SikaGard ®range of materials.The concrete or screed substrate has to be primed or levelled in order to achievean even surface.High spots must be removed by e.g. grinding.All dust, loose and friable material must be completely removed from all surfacesbefore application of the product, preferably by brush and/or vacuum.+8°C min. / +45°C max.+8°C min. / +45°C max.< 4% pbw moisture content.Test method: Sika ® -Tramex meter, CM - measurement or Oven-dry-method.No rising moisture according to ASTM (Polyethylene-sheet)85% RH max.Beware of condensation!The substrate and uncured membrane must be at least 3°C above dew point toreduce the risk of condensation or blooming of the membrane finish.Part A : Part B = 50.7 : 49.3 (by weight)Part A : Part B = 50 : 50 (by volume)Dose and mix with suitable two-part spray equipment.Both components must be heated up to between +50°C and +75°C.The accuracy of mixing and dosage must be controlled regularly with theequipment.5 5/8Sikalastic®-821 LV

Application Method /ToolsCleaning of ToolsWaiting Time /OvercoatingPrior to application, confirm substrate moisture content, r.h and dew point.Primer:Prime prepared concrete with Sikagard ® -186. Sikagard ® -186 should not just berolled or poured. In order to avoid the formation of pinholes, the primer must bebrushed into the concrete surface, if necessary in two applications. After eachapplication lightly broadcast with quartz sand 0.3 - 0.8 mm. In order to avoid theformation of blisters do not broadcast to excess.Levelling up:Rough surfaces need to be levelled first. Use Sikagard ® -186 levelling mortar (seethe relevant PDS).Waterproofing:Spray apply with suitable two-part hot spray equipment e.g. Unipre CG 52 BF.(Supplier: UNIPRE GmbH Langwiedenweg 94, 59497 Werl, Germany,Tel.: +49/2922-87840-0, www.unipre.de).Control the film thickness during application using a thickness gauge.Bonding bridge (intermediate):Uniformly spread 1 x Sikalastic ® -810 using a short pile (12 mm) nylon roller or byspray.Clean all tools and application equipment with Thinner C immediately after use.Hardened and/or cured material can only be removed mechanicallyBefore applying Sikalastic ® -821 LV on Sikafloor ® -161 allow:Substrate temperature Minimum Maximum+10°C24 hours+20°C+30°C+45°C12 hours8 hours6 hours1 month 1 )Before applying Sikalastic ® -821 LV on Sikagard ® -186 allow:Substrate temperature Minimum Maximum+10°C+20°C+30°C+45°C24 hours20 hours16 hours14 hours1 month 1 )Before applying Sikalastic ® -821 LV on Sikalastic ® -821 LV allow:Substrate temperature Minimum Maximum+10°C 3 hours 2 )+20°C-2 hours 2 )+30°C 2 hours 2 )+45°C1 hour 2 )Before applying Sikalastic ® -821 LV on Sikalastic ® -810 allow:Substrate temperature Minimum Maximum+10°C 3 hours 6 hours 3 )+20°C 2 hours 4 hours 3 )+30°C 1 hour 2 hours 3 )+45°C 40 minutes 1 hour 3 )6 6/8Sikalastic®-821 LV

Before applying Sikalastic ® -810, Sikalastic ® -823, Sikalastic ® -825 onSikalastic ® -821 LV allow:Substrate temperature Minimum Maximum+10°C+20°C+30°C+45°C90 minutes60 minutes30 minutes20 minutes1 month 1 )Before applying asphalt on Sikalastic ® -821 LV allow:Substrate temperature Minimum Maximum+10°C+20°C+30°C+45°C24 hours(first an intermediate layer ofSikalastic ® -823 orSikalastic ® 825 must beapplied)14 days 1 )(first an intermediate layer ofSikalastic ® -823 orSikalastic ® 825 must beappliedBefore applying Sikalastic ® -822, Sikafloor ® -355 N or Sikafloor ® -161 on Sikalastic ® -821 LV allow:Substrate temperature Minimum Maximum+10°C 90 minutes 3 hours 2 )+20°C 60 minutes 2 hours 2 )+30°C 30 minutes 2 hours 2 )+45°C 20 minutes 1 hour 2 )1 ) Assuming that any dirt has been carefully removed and contamination is avoided.Notes on Application /Limitations2 ) If the max. waiting time is exceeded then Sikalastic ® -810 + 15 wt.-% Thinner Cmust be applied as a bonding bridge.3 ) If the max. waiting time is exceeded then Sikalastic ® -810 must be applied dilutedwith max. 20% Thinner C.Times are approximate and will be affected by changing ambient conditionsparticularly temperature and relative humidity.This product may only be used by experienced professionals.Application is by 2-part hot spray equipment only.Temperature of the substrate during application and curing: min. +8°C.Sikalastic ® -821 LV is not UV light resistant and changes colour under UV exposure.However, the performance and technical properties are not affected providing theexposure is max. 4 weeks. It is therefore advisable to overcoat Sikalastic ® -821 LVwith hot poured asphalt as early as possible. Areas not to be overlaid with asphaltand which are permanently exposed to UV light radiation, must be overcoated witha suitable protective coating such as Sikalastic ® -445. In wet areas or climatic zoneswith a permanent air humidity of > 80%, in combination with a permanent airtemperature of > +30°C, the adhesion promoter Sikalastic ® -810 + 15 wt.-% ThinnerC must be used.Please note that Sikalastic ® -821 LV is not suitable for applications with permanentwater load.Prior to placing the hot poured asphalt, a tack-coat Sikalastic ® -823 has to beapplied by brush, roller or spray.Prior to placing the hot rolled asphalt, a tack-coat Sikalastic ® -825 has to be appliedby brush, roller or spray.Please note: Always apply a test area first.7 7/8Sikalastic®-821 LV

Curing DetailsApplied Product readyfor useTemperatureRain resistant afterReady for foot 1) traffic(carefully)Ready for traffic 2)ConstructionValue BaseLocal RestrictionsHealth and SafetyInformationLegal NotesEU Regulation 2004/42VOC - DecopaintDirective+10°C ~ 90 minutes ~ 24 hours+20°C ~ 60 minutes ~ 18 hours~ 5 minutes+30°C ~ 30 minutes ~ 14 hours+45°C~ 20 minutes ~ 12 hoursNote:1)Only for inspection or for application of the next layer.2)Only for inspection, application of the next layer or placing of the hot pouredasphalt by trucks. Not for permanent traffic.Times are approximate and will be affected by changing ambient conditions.All technical data stated in this Product Data Sheet are based on laboratory tests.Actual measured data may vary due to circumstances beyond our control.Please note that as a result of specific local regulations the performance of thisproduct may vary from country to country. Please consult the local Product DataSheet for the exact description of the application fields.For information and advice on the safe handling, storage and disposal of chemicalproducts, users shall refer to the most recent Material Safety Data Sheet containingphysical, ecological, toxicological and other safety-related data.The information, and, in particular, the recommendations relating to the applicationand end-use of Sika products, are given in good faith based on Sika's currentknowledge and experience of the products when properly stored, handled andapplied under normal conditions in accordance with Sika’s recommendations. Inpractice, the differences in materials, substrates and actual site conditions are suchthat no warranty in respect of merchantability or of fitness for a particular purpose,nor any liability arising out of any legal relationship whatsoever, can be inferredeither from this information, or from any written recommendations, or from any otheradvice offered. The user of the product must test the product’s suitability for theintended application and purpose. Sika reserves the right to change the propertiesof its products. The proprietary rights of third parties must be observed. All ordersare accepted subject to our current terms of sale and delivery. Users must alwaysrefer to the most recent issue of the local Product Data Sheet for the productconcerned, copies of which will be supplied on request.According to the EU-Directive 2004/42, the maximum allowed content of VOC(Product category IIA / j type sb) is 550 / 500 g/l (Limits 2007 / 2010) for the readyto use product.The maximum content of Sikalastic ® -821 LV is < 500 g/l VOC for the ready to useproduct.Sika Yapı Kimyasalları A.Ş.Deri Org. San. Böl. 2. Yol J–7Parsel, Aydınlı, Orhanlı Mevkii,34957 Tuzla, İstanbul, TürkiyeÇağrı MerkeziTelefonFaksbilgi@tr.sika.com+90 216 444 74 52+90 216 581 06 00+90 216 581 06 99www.sika.com.tr8 8/8Sikalastic®-821 LV