Foil Outside SL1050 Power One

Blaugelb Foil Outside SL 1050 Power One is the weather-side variant of the SL 1050 sealing foil family, designed for the exterior seal at window and door connection and expansion joints.

What it does

The adhesive-backed plastic foil with fleece reinforcement creates a barrier that is airtight, windtight, watertight to driving rain, and vapor-open per DIN 18355 — letting any moisture that does reach the joint dry outward instead of being trapped.

When and where to use it

• Exterior side of window and door connection and expansion joints
• Renovation and new construction
• Threshold profiles and hollow-chamber openings (64 mm and wider)
• Window joints and facade applications (75–350 mm widths)

Key benefits

• Airtight, windtight, watertight to driving rain
• Sd value ≤0.5 m — vapor-open
• Strong adhesion without separate adhesive
• Service range -40°C to +90°C
• Up to 12 months UV resistance
• Plasterable, bondable, paintable
• Pairs with Inside SL 1050 Power Plus on the warm side for a complete dual-layer system