Question 1

What is Henkel Polybit Plastifelt 4mm Fibre Membrane used for?

Accepted Answer

It is a waterproofing membrane designed for roofs, terraces, balconies, wet areas, basements, and water-retaining structures. It provides excellent resistance to water and vapour pressure and ensures durability under challenging conditions.

Question 2

What are the key technical specifications of the membrane?

Accepted Answer

The membrane has a thickness of 4mm, a roll size of 1m x 10m, and weighs approximately 40kg. It is highly resistant to ageing, atmospheric agents, and waterborne chemicals while maintaining good flexibility and dimensional stability under tension.

Question 3

How should the surface be prepared before application?

Accepted Answer

The surface must be cleaned of dust, oil, grease, and other contaminants. Any structural imperfections should be repaired using suitable materials like Polycrete concrete repair mortar. A solvent-based primer (Polyprime SB) should be applied at 4-6 m²/L to ensure proper adhesion.

Question 4

What is the recommended overlap during installation?

Accepted Answer

Side overlaps should be a minimum of 100mm, and end overlaps should be at least 150mm. Proper alignment and sealing of overlaps are critical to avoid water penetration and material wastage.

Question 5

What torching procedure is recommended for application?

Accepted Answer

The embossed polyethylene side of the membrane should be heated using a propane torch in an "L" pattern—75% of the heat on the roll and 25% on the substrate. The embossing melts to expose a shiny bitumen surface for bonding. Care must be taken to avoid overheating or underheating.

Question 6

What makes this membrane durable and reliable?

Accepted Answer

It is manufactured with high-quality bitumen and polymers, reinforced with thermally stabilized materials for superior flexibility, puncture resistance, and tensile strength. It also features secured sealing technology for overlap joints.

Question 7

How should the membrane be stored?

Accepted Answer

Rolls must be stored in a shaded area on wooden pallets, and covered with thick fabric to minimize exposure to sunlight and UV rays. Proper storage ensures a shelf life of up to 12 months.

Question 8

Can it accommodate structural movements?

Accepted Answer

Yes, the membrane has excellent flexibility, allowing it to accommodate structural movements without compromising its waterproofing properties.

Question 9

What is the primary purpose of Henkel Polybit Plastifelt 4mm Fibre Membrane?

Accepted Answer

It is designed for surface protection projects. It serves as a reliable membrane to enhance the durability and longevity of various surfaces.

Question 10

What makes this membrane "Non-Tearable"?

Accepted Answer

The "Non-Tearable" feature means that the membrane is exceptionally durable and resistant to tearing, ensuring long-lasting protection for surfaces in diverse environments.

Question 11

What are the key benefits of using Henkel Polybit Plastifelt Fibre Membrane for surface protection?

Accepted Answer

Henkel Polybit Plastifelt Fibre Membrane offers enhanced durability, weather resistance, and non-tearability, making it a reliable choice for surface protection in a variety of settings.

رول الألياف بوليبت بيتومين بلاستيفلت من (Henkel) سماكة (4mm)

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