Bergolin Putty 4D9700-HighTemp 2-Component Polyurethane Repair Putty Fast Repairs. High-Temperature Performance. Built for Wind Energy. Bergolin Putty 4D9700-HighTemp is a solvent-free, pigmented, elastic 2-component polyurethane repair compound developed specifically for wind turbine rotor blades and high-performance GRP structures. Designed for demanding outdoor environments, it delivers excellent UV resistance, strong mechanical performance, and durable adhesion — even under extreme temperature conditions. Its thixotropic consistency allows for controlled filling and precise surface leveling, making it ideal for fast, professional composite repairs in high-heat environments. Recommended Applications Repair and leveling of GRP surfaces Wind turbine rotor blade maintenance Composite structure surface restoration Applications exposed to high UV and weather stress Filling work requiring elasticity and flexibility Industrial wind energy manufacturing and service operations Suitable for processing at ambient temperatures up to +45°C. Key Advantages Solvent-free and virtually VOC-free High elasticity for flexible composite components Excellent UV and weather resistance Fast processing and sanding times Designed for high-temperature application conditions Strong adhesion to GRP and composite substrates Performance in High-Temperature Environments Engineered for hot climate conditions and elevated surface temperatures, 4D9700-HighTemp maintains workability and performance even when applied between +25°C and +45°C. This makes it particularly valuable for field repairs on rotor blades and outdoor composite structures where surface heat can be significant. Product Specifications Chemical Basis: Polyurethane (2-component system) Hardener Component: Bergolin Hardener 7D9700 Density (Mixture): approx. 1.46 g/ml VOC Content: approx. 0.6 g/L (virtually emission-free) Solids Content: 100% (solvent-free) Mixing Ratio: 100 : 36.3 by weight / 2 : 1 by volume Processing Time: approx. 4 minutes at 25°C approx. 2.5 minutes at 35°C approx. 1.5 minutes at 45°C Sandable After: approx. 50 minutes at 25°C approx. 30 minutes at 35°C approx. 15 minutes at 45°C Application Conditions: +25°C to +45°C / < 90% relative humidity Shelf Life: 12 months (Components A & B) stored at +4°C to +40°C in original containers Built for Professional Composite Repair Bergolin Putty 4D9700-HighTemp is engineered for technicians who need fast turnaround, strong adhesion, and reliable performance in extreme outdoor environments. Its high elasticity and temperature resistance make it a trusted solution for rotor blade maintenance and composite surface restoration. Bergolin Putty 4D9700-HighTemp is designed for professional use and should be applied in accordance with the corresponding Product Data Sheet and Safety Data Sheet. Documentation: Safety Data Sheet (SDS):Download SDS – Bergolin Putty 4D9700-HighTemp Technical Data Sheet (TDS):Download TDS – Bergolin Putty 4D9700-HighTemp
