FİXA BİTÜMFİX PU 1K | Single-Component Bitumen + Polyurethane Waterproofing Membrane

21/07/2026

FİXA BİTÜMFİX PU 1K | Single-Component Bitumen + Polyurethane Waterproofing Membrane

FİXA BİTÜMFİX PU 1K | Single-Component Bitumen and Polyurethane-Based Waterproofing Membrane

FİXA BİTÜMFİX PU 1K is a high-performance waterproofing membrane based on bitumen and polyurethane. It is a single-component product that cures with moisture in the air. Thanks to its polyurethane-enhanced formulation, it provides excellent adhesion to substrates and forms a durable protective barrier against water and moisture.

Key Features

  • Bitumen + polyurethane formulation: Offers stronger adhesion and greater durability compared to conventional bituminous products.
  • Single-component, ready-to-use: Ensures fast and practical application.
  • Moisture-curing system: Cures through exposure to atmospheric moisture without requiring additional processing.
  • Suitable for horizontal and vertical surfaces: Provides versatile application possibilities.
  • Long-lasting protection: Highly resistant to water, moisture, and environmental conditions.

Applications

FİXA BİTÜMFİX PU 1K delivers outstanding performance, particularly in exterior waterproofing applications:

  • Foundation and retaining walls for protection against ground moisture and seepage water
  • Balconies, terraces, and roofing systems as a reliable waterproofing layer beneath coverings
  • Green roof systems requiring resistance to moisture and plant root penetration
  • Canals, drainage channels, and rainwater gutters (excluding PVC-based gutter systems)
  • Concrete, stone, fiber cement, and metal surfaces requiring strong adhesion and long-term durability

Technical Documents

  • Product Data Sheet
  • Technical Data Sheet (TDS)

Why Choose FİXA BİTÜMFİX PU 1K?

Unlike conventional bitumen-based waterproofing products, FİXA BİTÜMFİX PU 1K incorporates polyurethane technology to provide superior adhesion and long-lasting waterproofing performance. It is particularly suitable for foundation waterproofing, balcony and terrace applications, and green roof projects.

Its single-component formulation eliminates the need for mixing, making application simple and efficient. Once applied, it cures through atmospheric moisture, creating a highly durable barrier against water and humidity.

Frequently Asked Questions (FAQ)

1. Where can BİTÜMFİX PU 1K be used?

It can be applied on foundation and retaining walls, balconies, terraces, roofs, green roof systems, canals, and rainwater drainage channels.

2. Can it be used on PVC rain gutters?

No. It is not recommended for use on PVC-based gutter systems.

3. How does the product cure?

It cures by reacting with moisture present in the air and forms a water-resistant protective membrane.

4. What are the advantages of being a single-component product?

It is ready to use, requires no mixing, and offers fast and easy application.