PENOSIL
Premium Hybrid Airtight Membrane liquid membrane for air- and weatherproofing

VALUES

• After curing, forms a seamless membrane that is completely air- and watertight.
• Can be used on horizontal and vertical surfaces.
• Very comfortable and easy to apply.

• Excellent adhesion to wide range of substrates.
• Useful in renovation projects.
• Does not contain solvents, silicones or isocyanates.
• Practically odorless.

USAGE INSTRUCTION

Sealing door and window joints
Apply the liquid membrane on the joint with a caulking gun and smooth with a putty knife or flat brush so the seamless film is at least 1 mm thick.
Liquid Hybrid Membrane can be applied by using a pneumatic spray gun. Adjusting the nozzle gives options to apply either as a bead or sprayed as a coating. For spraying, the nozzle is more open and less product is applied. For optimal use, the air pressure should be 4..6 bar and nozzle should be around 75% open. After spraying, if needed, smooth the membrane with a flat brush and make sure the minimum layer thickness (1 mm) is applied.
To ensure air- and weather tightness, the membrane needs to be applied at least 10 mm on the window/door frame, over the cured foam and at least 10 mm on the wall structure (both for caulking and pneumatic spray gun).
Sealing various penetrations.
For sealing penetrations and turn-ups, a sealing cuff or reinforcement fabric has to be used. Use a putty knife or flat brush to apply the mastic on the surface, install a sealing cuff or a reinforcement fabric and cover the surface with mastic.
It is recommended to cover the surfaces in multiple layers. The curing time before the next layer needs to be 12-24 hours. The final curing time depends on the layer thickness and relative humidity and temperature of the environment.

TIPS

• Application temperature between +5 °C and +40 °C.
• Substrates must be free of grease, oil, dust, and loose particles.
• As the mastic does not form an independent, strong and wear-resistant surface cover, the surface must be covered with a finishing material. During curing, make sure no dirt falls on the material’s surface and that the surface of the joint is not under mechanical stress.
• To clean uncured product, use PENOSIL Premium Cleaning Wipes or spirits or acetone. Cured product should be removed mechanically.

LIMITATIONS

• Not suitable for expansion joints.
• Limited UV resistance and should be covered from direct sunlight.