System Information Sheet Edition 02.2014/v1 CSC Master FormatTM 09 96 00 Sikagard® Septiflex Sikagard® Septiflex System (Formerly Duochem Septiflex) Solvent-Free and Low-VOC, Antimicrobial and UV Resistant, Flexible Polyurethane, Wall Coating System Construction Description Sikagard® Septiflex is a very high solids, crack –bridging and impact resistant, interior wall coating system. The system consists of a body coat of Sikalastic® Duochem 387 vertical grade polyurethane waterproofing membrane and multiple top coats of Sikalastic® Duochem 388 flexible polyurethane coating. The two coatings are solvent-free, practically odourless and possess low VOC contents, making them user and occupant friendly during and after application. Where to Use Advantages This high-performance system produces a seamless, glossy, finely-textured yet easy to clean, ceramic-like finish that is available as standard in white or can be produced in a wide range of attractive custom colours. Sikalastic® Duochem 388 top coat contains the unique, Steri-Septic antimicrobial additive that inhibits the growth of bacteria, molds, mildew and fungi for the lifetime of the coating. ■Sikagard® Septiflex is typically installed in areas requiring a waterproof, crack bridging and impact resistant, sanitary wall coating system such as pharmaceutical facilities, healthcare premises, clean rooms, food processing and preparation areas and similar, high-hygiene environments. ■Durable, seamless, sanitary surface that is easily cleaned and maintained. ■Waterproof, so suitable for in-service exposure to high-humidity. ■Flexible coating system bridges micro-cracks that form post-application. ■Flexible coating system resists surface damage from minor impact. ■Contains Steri-Septic antimicrobial additive which remains permanent. ■Aesthetic, finely textured, glossy finish. ■Solvent-free, low- VOC, virtually odourless during installation. ■Excellent physical properties and chemical resistance. ■Enhanced resistance to colour change through U.V. exposure. ■Potential LEED Canada IEQ Credits for Low Emitting Materials – Paints and Coatings. ■Potential LEED Canada MR Credits for Rapidly Renewable Materials. Technical Data Packaging Colour Yield Shelf Life Mix Ratio Sikalastic® Duochem 387 18 L (4.76 US gal.) units 18.9 L (5 US gal.) units Sikalastic® Duochem 388 Sikalastic® Duochem 387 Brown and Clear RAL 9016 Traffic White Sikalastic® Duochem 388 Custom colours available on request Body Coat: Sikalastic® Duochem 387 4 m2/L (160 ft2/US gal.) @ 10 mils w.f.t. / d.f.t. per coat Top Coats: ® 5 - 6.6 m2/L (200 - 265 ft2/US gal.) Sikalastic Duochem 388 @ 6-8 mils w.f.t. / d.f.t. per coat. Typically two coats are required. Actual coverage rates and material consumption will depend upon porosity and profile of the substrate. Test areas are recommended to establish correct coverage rates. 1 year in original, unopened packaging under proper storage conditions. Store dry between 5 - 32°C (41 - 89°F). Condition product to between 18 - 30°C (65 - 86°F) before use. A: B = 2:1 Sikalastic® Duochem 387 A: B = 3:1 Sikalastic® Duochem 388 Sikagard® Septiflex 09 96 00 HIGH PERFORMANCE COATINGS 9-642 Construction Properties at 23°C (73°F) and 50% R.H. Solid Content Sikalastic® Duochem 387 Sikalastic® Duochem 388 100% by weight and volume 100% by weight and volume Pot Life, 250 g (8.8 oz.) Sikalastic® Duochem 387 Sikalastic® Duochem 388 20 minutes 30 minutes Recoat Times 6 - 12 hours Sikalastic® Duochem 387 24 - 72 hours Sikalastic® Duochem 388 Drying times will vary according to air and substrate temperature and humidity. Water Absorption ASTM D570 24 hours 7 days 0.80% 1.11% Permeability ASTM E96 < 1 perm Tensile Strength ASTM D638, Type IV Sikalastic® Duochem 387 Sikalastic® Duochem 388 10.4 MPa (0.072 psi) 3.4 MPa (493 psi) Elongation ASTM D638, Type IV Sikalastic® Duochem 387 Sikalastic® Duochem 388 300% 145% Hardness ASTM D2240 Sikalastic® Duochem 387 Sikalastic® Duochem 388 90 Shore A 40 Shore D Adhesion to concrete Sikalastic® Duochem 387 ASTM D4541 >2.0 MPa (290 psi) substrate failure Tear Strength ASTM D624, Die C Sikalastic® Duochem 387 Sikalastic® Duochem 387 41.9 KN/m (240 lb/n) 13.9 KN/m (79.4 lb/in) Low Temperature Flexibility ASTM C957 (-26°C) Sikalastic® Duochem 387 Passes 1.5 mm (1/16 in) Sikalastic® Duochem 387 Sikalastic® Duochem 388 32 mg loss 14 mg loss Abrasion Resistance ASTM D4060 Taber Abraser, CS-17 Wheel 1000 g /1000 cycles Rapidly Renewable Material Content Sikalastic® Duochem 387 Sikalastic® Duochem 388 55% (non-food vegetable oil) 55% (non-food vegetable oil) VOC ContentSikalastic® Duochem 387 Sikalastic® Duochem 388 3 g/L (0.03 lb/US gal.) 20 g/L (0.2 lb/US gal.) Product properties are typically averages, obtained under laboratory conditions. Reasonable variations can be expected on-site due to local factors, including environment, preparation, application, curing and test methods. How to Use Surface Preparation General Substrate Requirements: Substrates must be sound, clean and dry. Remove sand, dust, dirt, oil, grease, wax, silicone, glue and all other contaminates that may affect the bond. All substrates must be properly prepared, primed, sealed or filled using the applicable Sika® product before application of Sikalastic® Duochem 387. Gypsum Board: Sikagard® Duroplast PS Concrete Masonry: Sikagard® Duroplast VA or Sikagard® Duroplast EE Concrete Vertical Surfaces: Sikagard® Duroplast VA or Sikagard® Duroplast EE Existing coatings must be removed unless extensive testing confirms compatibility of materials and it is accepted that the existing paint or high performance coating will determine the overall performance of the newly applied coating. Gypsum Board: To obtain a uniform finish the joint filler compound must be properly installed, finished and fully cured. Small defects, such as pinholes, ridges and fibre-lift, can become most apparent after finishing coats are applied. Some porous joint filler compounds may require an additional application of Sikagard® Duroplast PS to seal and prime the overall surface to a uniform appearance and absorption. Gypsum board manufactured with recycled paper facings, may require additional preparation such as careful sanding and an additional coat of Sikagard® Duroplast PS primer/sealer to eliminate high suction spots. Concrete Masonry: Mortar joints shall be allowed to age for a minimum of 28 days prior to application of Sikagard® Duroplast VA or Sikagard® Duroplast EE blockfiller. Remove all traces of efflorescence, loose mortar, mortar spatters, residues, oxidation powder and any other foreign matter by scraping and wire brushing. Bug holes, cracks or irregularities should be filled and levelled with SikaTop® or Sika® MonoTop® mortars as appropriate. Consult Sika Canada Technical Services for recommendations. Concrete Vertical Surfaces: New concrete shall be allowed to age for a minimum of 28 days prior to application of Sikagard® Duroplast VA or Sikagard® Duroplast EE blockfiller. Formed concrete surfaces must have all traces of form release agent, bond breaker, curing compounds, laitance, oxidation powder and all other foreign matter removed from the surface. Prepare the concrete to produce an open textured, sandpaper-like finish and uniform surface equivalent to ICRI - CSP 1-2. Bug holes, cracks or irregularities should be filled and levelled with SikaTop® or Sika® MonoTop® mortars as appropriate. Consult Sika Canada Technical Services for recommendations. Sikagard® Septiflex 09 96 00 HIGH PERFORMANCE COATINGS 9-642 Construction Mixing Thoroughly pre-stir each component separately to ensure that all solids are distributed throughout and components are consistent within themselves. Empty Component B in the correct mix ratio to Component A into a suitably sized, clean mixing vessel. Mix the combined components for at least 3 minutes, using a low-speed drill (200 - 300 rpm) to minimize entrapping air. Use an Exomixer type mixing paddle (recommended model) suited to the volume of the mixing container. During the mixing operation, scrape down the sides and bottom of the container with a flat or straight edge trowel at least once, to ensure complete mixing. When completely mixed, Sikalastic® Duochem 387 and Sikalastic® Duochem 388 should be individually uniform in colour and consistency. Mix only that quantity which can be used within its pot life. Application Any areas of glass or other such surfaces should be covered and masked to protect against contact with the material. It is recommended that suitable cleaning rags and Sika® Duochem 205 cleaning solvent is on hand to remove accidental splashes. The Sikagard® Septiflex system must be applied in a workman-like manner using skilled and trade qualified applicators. The film thicknesses stated must be produced and complete coverage achieved. After application and prior to drying, remove masking tape in between each coat to avoid ‘ripping’ in the finished coating and let surfaces dry completely. Following cure of body coats, sand off any rough spots and visible defects with a fine sandpaper (120 -220 grit), then vacuum and wipe surface to remove all residual traces of sanding dust before the application of the final top coat. Body Coat: Apply Sikalastic® Duochem 387 at a rate of 4 m2/L (160 ft2/US gal.) for 10 mils w.f.t. /d.f.t. per coat, using a roller or brush to provide a uniform thickness. Allow the body coat to cure sufficiently (12 to 48 hours at 23°C) before applying the first coat of Sikalastic® Duochem 388. Top Coats: After Sikalastic® Duochem 387 has cured for 12 - 48 hours at 23°C (73ºF), apply Sikalastic® Duochem 388 at a rate of 5 - 6.6 m2/L (200 - 265 ft2/US gal.) for 6 - 8 mils w.f.t. / d.f.t. per coat, using a roller or brush to provide a uniform surface texture and thickness. Allow the first application of top coat layer to cure sufficiently for 24 - 72 hours at 23°C (73ºF) before applying second coat, again at a rate of 5 - 6.6 m2/L (200 - 265 ft2/US gal.) for 6- 8 mils w.f.t. /d.f.t. per coat using a roller or brush to provide a uniform surface texture and thickness. NOTE: Where a coat of Sikalastic® Duochem 387 or Sikalastic® Duochem 388 has been applied but over coating with subsequent coats has not taken place within the recoat time, the applied coat must be mechanically sanded and then cleaned and reactivated with Sika® Duochem 205 solvent, applied using a lint-free cloth. Ensure that the applied coat is sanded to a condition whereby all gloss or sheen is removed, the surface is scuffed but not damaged and that following the solvent wipe, the solvent evaporates off and the surface is sound and dry before proceeding. Clean Up Clean all tools and equipment immediately with Sika® Duochem 205 cleaning solvent. One cured, product can only be removed mechanically. Wash hands and skin thoroughly with hot soapy water or use Sika® Hand Cleaner towels. Limitations ■Sikagard® Septiflex systems must be installed by suitably skilled, experienced and trade qualified applicators. Consult Sika Canada Technical Services for advice. ■Thickness and re-coat window are critical; system will not work if installed differently. ■When over-coating existing coatings, compatibility and adhesion testing is recommended and the existing coating must be acknowledged as determining the adhesion and performance of all subsequently applied materials. ■Minimum/maximum ambient and substrate temperature during application and cure: 10ºC /32ºC (50ºF / 90ºF). Monitoring of relative humidity, ambient and substrate temperature should always be done when applying polyurethane coatings. Note that low temperatures and low humidity will slow down the cure, and high temperatures and high humidity will accelerate it. For applications outside of this temperature range, contact Sika Canada. ■Substrate temperature must be at least 3°C (5.5°F) above measured dew point temperature. ■Minimum age of concrete and masonry surfaces prior to application is 21 -28 days, depending on curing and drying conditions. ■Moisture content of concrete, masonry surfaces, gypsum board and plaster must be no greater than 85 (green zone on the reference scale) when measured with a calibrated electronic moisture meter (Delmhorst Model BD-10). ■Minimum age of SikaTop® or Sika® MonoTop® mortar prior to application is 3 days, depending on curing and drying conditions. Moisture content must be no greater than 4% when measured with a calibrated moisture meter for concrete (Tramex). ■Substrate must be dry prior to application. Do not apply to frosted, wet or damp surfaces to avoid potential for bonding problems. Sikagard® Septiflex 09 96 00 HIGH PERFORMANCE COATINGS 9-642 ■Do not store materials outdoors or exposed to sunlight for prolonged periods. ■Do not hand-mix or thin with solvents: mechanical mix only. ■Protect from dampness, condensation and water contact during the initial 24 hour cure period. ■Apply product to dry, clean, properly cured and prepared surfaces in areas where dust is no longer generated by construction activities such that airborne particles will not reduce bond of coating or adhere to the surface, affecting the quality of subsequently applied finishes. ■Ensure proper ventilation. Respiratory protection is mandatory when applying Sikalastic® Duochem 388. Consult Material Safety Data prior to use ■Sikagard® Septiflex Systems are not suitable for use as a traffic bearing surface or as a roofing system. Health and Safety For information and advice on the safe handling, storage and disposal of chemical Information products, users should refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safety-related data. Construction KEEP OUT OF REACH OF CHILDREN FOR INDUSTRIAL USE ONLY The information, and in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika’s current knowledge and experience of the products when properly stored, handled and applied under normal conditions, within their shelf life. In practice, the differences in materials, substrates and actual site conditions are such that 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 inferred either from this information, or from any recommendations, or from any other advice offered. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users should always refer to the most recent issue of the Product Data Sheet for the product concerned, copies of which will be supplied on request or can be accessed in the Internet under www.sika.ca. Sika Canada Inc. Head Office 601 Delmar Avenue Pointe-Claire, Quebec H9R 4A9 Other locations Toronto Edmonton Vancouver 1-800-933-SIKA www.sika.ca An ISO 9001 certified company Pointe-Claire: ISO 14001 certified EMS Sikagard® Septiflex 09 96 00 HIGH PERFORMANCE COATINGS 9-642
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