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Würth FLK Pro 250
Würth FLK PRO 250 is a UV-resistant, semi-thixotropic, highly elastic and durable, one-component, solvent-based liquid waterproof membrane based on polyurethane,
which hardens to a seamless, durable, hydrolysis-resistant
and breathable sealing membrane. It is ideal for vertical surfaces, inclines and connecting work. Würth FLK PRO 250 is based on pure, hydrophobic, elastomeric polyurethane resins with excellent mechanical, chemical and thermal properties. Hardens in reaction with moisture in the air and substrate.
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Advantages
- Easy to apply, ready-to-use with roller, brush or spray
- Semi-thixotropic, ideal for surfaces with a steep incline
- Formation of a seamless and gapless, highly elastic membrane
- Full adhesion to the surface
- Resistant to hydrolysis, frost and UV rays
- High thermal resistance without softening and frost resistance between -40°C to +90°C
- Bridges cracks up to 2 mm, even at -10°C
- Breathable (water vapour permeable)
- Root resistant
- Can be accessed normally
- Certified in accordance with ETAG 005 (ETA-18/0835)
- Corresponds to Ö-Norm (Austrian standard) B 3691 (with reinforcement)
- Corresponds to Ö-Norm (Austrian standard) B 3692
- Resistant to cleaning agents, household chemicals, oils and sea water
- Easy to repair after mechanical damage
- Also suitable as a second sealing layer in the window below the window sill
Consumption
2.4–4.1 kg/m² depending on the application.
Würth FLK PRO 250 is versatile.
- Sealing of flat roofs, balconies and terraces
- Sealing of inclines and connections
- Sealing of bitumen, EPDM and PVC roofing sheeting
- Protective layer for PUR spray foam
- Sealing of pre-fabricated concrete parts
- Sealing of green roofs
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