Bergolin Putty 4E2500
Description
Bergolin Putty 4E2500 is a solvent-free, pigmented, elastic two-component epoxy resin liquid plastic (filler) for wind turbine rotor blades. It is used to fill and level surfaces and, thanks to its elasticity, retains its properties permanently. Due to its low density of approximately 0.91 g/cm³, it helps reduce the weight of the component. It sands well and can be finished to a pore-free surface, thus forming a stable, uniform base for subsequent coating applications.
Recommended use
- Filling and Leveling of Rotor Blade Surfaces Made of Fiberglass-Reinforced Plastic
- Weight-Optimized Filling of Wind Turbine Components
- Applying a topcoat over sound gelcoat and primer layers
- Preparation of sound, pore-free substrates for subsequent coating application
- Batch processing using a 2K dispensing system
Product details
- Chemical basis: Epoxy resin (two-component system)
- Hardener system: Bergolin Hardener 7E2500-4
- Characteristics: solvent-free, low density, high-film-build, elastic, easy to apply
- Color: Pale green
- Finish: satin gloss
- VOC content: approx. 0 g/l
- Pot life: approx. 13 minutes at +20 °C
- Drying: Can be sanded after about 5 hours
- Shelf life: approx. 12 months (Components A and B) in the original, unopened container (+4 °C to +40 °C)
- Compatible Systems: Can be combined with other products in the Bergolin wind power portfolio
Advantages at a glance
- Low density of approximately 0.91 g/cm³ – active weight reduction on the rotor blade
- Solvent-free – 0 g/l VOC, 100% solids
- Elastic – retains its properties permanently even when the component moves
- Can be applied in thick coats at approximately 0.91 kg/m² per mm of coating thickness
- Easy to sand and can be finished to a smooth, non-porous finish
- Material-efficient usage thanks to low density
- Designed for batch processing using 2K dispensing systems
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