Lightning strike and other structural damages

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1 The ability to carry out rapid and reliable repairs to wind turbine blades is vital to ensure the minimum of downtime thereby maximising the generation efficiency of the turbine. OEM and DNV-GL approved Repairing with Sika s solutions gives peace of mind by utilising OEM and DNV-GL approved products to bring your blades back to life Leading edge erosion Lightning strike and other structural damages Lightning protection Retrofitted winglets

2 GLOBAL BUT LOCAL PARTNERSHIP FOR MORE WIND TURBINE INFORMATION: WHO WE ARE Sika is a specialty chemicals company with a leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing and protecting in the building sector and the motor vehicle industry. Sika has subsidiaries in 93 countries around the world and manufactures in over 170 factories. Its more than 17,000 employees generated annual sales of CHF 5,49 billion in Our most current General Sales Conditions shall apply. Please consult the Data Sheet prior to any use and processing. SIKA SERVICES AG / INDUSTRY / WIND TURBINE TECHNOLOGY / SW/ REPAIR SOLUTIONS / / 896 / ID:44546 SIKA SERVICES AG Tuffenwies 16 CH-8048 Zurich Switzerland CONTACT: Phone: Fax:

3 WIND TURBINE TECHNOLOGY REPAIR SOLUTIONS

4 STRUCTURAL REPAIR AND SURFACE FINISHING SOLUTIONS Sika s surface finishing and repair solutions can be utilised on the full range of in-service damage seen by wind turbine blades such as: Leading edge erosion Lightening strikes Scuffs and scratches Impact damage Surface pinholes Re-attachment of parts Bulkhead repair Sealing applications Re-attachment of parts Pinholes Superficial scratches

5 7 8 SURFACE FINISHING AND REPAIR Product Type OEM 2C Cartridge 2C MixPax Packaging 2C MixCan Can Approved by SikaForce Blue 2C PUR surface filler 260 g OEM SikaForce Red 2C PUR surface filler 260 g OEM SikaForce L7 2C PUR structural adhesive 260 g 1.45 kg OEM SikaForce L7 MR 2C PUR moisture resistant surface filler 300 g Sikadur Blade Repair-30 2C Epoxy laminating system 300 g Sikadur Blade Repair-90 2C Epoxy laminating system 300 g 5 kg (A) 5 kg (B) 10 kg (A) 2.6 kg (B) 10 kg (A) 3 kg (B) OEM DNV-GL DNV-GL SEALING AND BONDING Product Type Packaging 1C Cartridge Color Approved by Sikaflex -521 UV UV-resistant PUR-Hybrid sealant 300 ml White, Gray, Black OEM Sikaflex K 2C weather resistant PUR-Hybrid sealant / adhesive 490 ml White OEM Sikaflex -515 Weather resistant PUR-Hybrid sealant 300 ml White, Gray, Black OEM Sikaflex -221 Universal PUR sealant / adhesive 300 ml White, Gray, Black OEM Sikasil WS-605 S High performance silicone weatherproof sealant 300 ml White, Gray, Black, Transparent OEM 5 AUXILIARY PRODUCTS Product Type Packaging Sika Cleaner P Surface cleaner 1 l and 5 l can Sika Tooling Agent N Finishing liquid 1 l and 5 l can Sika Handclean Cleaning towels Re-sealable bucket Sika Aktivator-205 Surface pretreatment 250 ml, 1 l and 5 l cans Leading edge Sika erosion Remover-208 Lightning Cleaner strike / remover and other Lightning 30 ml, 250 protection ml and 1 l cans structural damages Retrofitted winglets

6 PRODUCT APPLICATION CARTRIDGE SOLUTIONS All Sika s cartridge repair solutions have been designed for use in the same cartridge gun. The Sika Gun HD is a heavy duty, lightweight manual caulking gun with a high gear ratio for easy one-handed application. Key Features Reinforced nylon, ergonomic soft grip handle High gear ratio for easy one-handed use Lightweight (600 g) but durable, heavy duty design Karabiner clip to secure whilst working at heights Twistable, anti-drip cartridge holder SikaForce SikaForce Red / Blue and SikaForce L7 are available in convenient cartridge packaging. The co-axial format is designed to be used in a standard caulking gun. Key Features Color coded for early identification Stop / go application Fast and easy sanding even at 5 C Easy to extrude, mix and apply OEM approved package MIXPAX SOLUTIONS Sikadur Blade Repair Kits and SikaForce L7 MR / SikaForce are available in an easy to use, lightweight packaging. Pre-measured amounts of both components are packed in a single pouch ready to mix and go. Key Features Lightweight packaging Accurate mix ratio control Simple and easy to use Less wasted material OEM approved package Less packaging waste