The expiration date on this silicone is 12/03/25. Generally, it can still be used for up to 6 months beyond the expiration date, provided it's stored properly and shows no signs of degradation.
PENOSIL Airtight Membrane 704 is an advanced MS-polymer based liquid membrane designed to provide superior air and waterproofing for external window and door joints, as well as other penetrations. This innovative product forms a flexible, elastic, and seamless barrier that ensures long-lasting protection against air leakage and water infiltration. At the same time, it allows for vapour permeability, ensuring that the sealed areas can "breathe" while maintaining airtightness.
This liquid membrane is ideal for a variety of construction and renovation projects, offering excellent adhesion to a wide range of materials. Whether applied to concrete, bricks, PVC, ceramic tiles, metals, bitumen, or EPDM surfaces, PENOSIL Airtight Membrane 704 delivers reliable, high-performance sealing that meets the demands of modern building standards. Its seamless application method ensures there are no weak points in the seal, providing consistent protection in areas prone to air or water intrusion, such as window and door frames, facades, and roof penetrations.
The membrane’s elasticity ensures that it can withstand natural building movements caused by temperature fluctuations or structural shifts, maintaining its protective qualities over time without cracking or losing adhesion. Its vapour permeable properties make it especially useful in areas where moisture control is critical, preventing condensation build-up while maintaining airtightness.
Key Features:
- Air and Waterproofing: Provides an effective barrier against air leakage and water infiltration, ensuring energy efficiency and moisture control.
- Elastic and Flexible: Forms an elastic, seamless layer that adapts to building movements without compromising the seal.
- Vapour Permeable: Allows the sealed area to breathe, preventing condensation while maintaining airtight properties.
- Excellent Adhesion: Bonds effectively to a wide range of materials, including concrete, bricks, PVC, ceramic tiles, metals, bitumen, and EPDM.
- Seamless Application: Ensures a consistent and reliable seal with no weak points, reducing the risk of air or water penetration.
- Durable and Long-Lasting: Resistant to weathering, UV exposure, and environmental stress, providing long-term protection.
Ideal Uses:
- Sealing external window and door joints for improved airtightness and energy efficiency.
- Waterproofing penetrations in facades, roofs, and other exterior surfaces.
- Providing air and moisture barriers in areas with varying environmental conditions.
- Creating a seamless and durable layer on building materials such as concrete, bricks, PVC, metals, and more.
PENOSIL Airtight Membrane 704 is the ideal solution for professionals seeking reliable, high-performance air and waterproofing for external joints and penetrations. Its elastic, vapour permeable properties make it perfect for use in modern construction projects, ensuring long-lasting protection against the elements while maintaining structural integrity and energy efficiency.
