PENOSIL
Premium Butyl Mastic plastic and durable weatherproofing mastic

VALUES

• Plastic and durable.
• “Self-healing” behavior.
• Easy to use.
• UV and weather resistant.
• Very low vapor and gas permeability.

• Non-corrosive to metals.
• Excellent adhesion to a wide range of porous and non-porous substrates.
• Paintable.
• Practically odorless.

USAGE INSTRUCTIONS

Cut off the threaded end of the cartridge and screw on the application nozzle for directing the mastic.

Cut the nozzle so that the opening is sufficient for application of the necessary amount of mastic. Place the cartridge together with the nozzle in the gun and fill the application nozzle with mastic by pressing the gun’s trigger.

Apply the mastic to the joint by pressing the gun’s trigger repeatedly and evenly and by dragging the nozzle steadily across the joint.

After application, smooth the mastic with a rubber smoothing tool. Remove excess material.

TIPS

• Surfaces must be clean from dust, loose particles and oil.
• Non-porous surfaces should be cleaned with solvent and a clean, non-fluffy cotton cloth.
• Solvent rests should be removed before evaporating with a clean cloth.

LIMITATIONS

• Do not use on bituminous substrates or on building materials which might bleed oils, plasticizers or solvents (e.g. natural rubber, chloroprene, EPDM, …).
• There is no adhesion to PE, PP, PTFE (Teflon®).
• Due to the wide variety of possible substrates, we recommend a preliminary compatibility and adherence test. If necessary, prime surfaces to improve adhesion.
• Not intended for insulating glazing (IG).