Polyurethane

Boz Altinay Construction Industry Inc.

Polyurethane-Based Waterproofing Materials: High-Performance Insulation Solution

In modern construction technologies, waterproofing is no longer just about surface coating, but also about durability, flexibility, and longevity. In this regard,  polyurethane-based waterproofing materials stand out as highly flexible liquid application solutions that exhibit superior performance, especially against challenging climatic conditions and structural movements.

What is polyurethane-based insulation material?

Polyurethane-based waterproofing products  are high-performance insulation materials formulated as single-component or two-component solutions .  They are applied in liquid form, cure, and form an elastic, waterproof coating  . Thanks to their chemical structure, they adhere perfectly to the surface and maintain waterproofness for many years.

Areas of Application

  • Terrace and balcony waterproofing

  • Foundation and retaining wall concretes

  • Wet areas (bathroom, toilet, kitchen)

  • Roofing and gutter systems

  • Industrial floors and car parks

  • Metal and wood surfaces

  • Areas open to pedestrian traffic (open walkways, courtyards)


Advantages of Polyurethane Waterproofing Products

✅  High Elasticity:  Does not crack in response to structural movements and maintains its flexibility.
✅  Full Adhesion:  Adheres perfectly to various surfaces such as concrete, metal, wood, and ceramics.
✅  UV Resistance:  Provides long-lasting protection in areas exposed to direct sunlight (especially aliphatic polyurethanes).
✅  Easy Liquid Application:  Creates a seamless and jointless surface, ensuring complete insulation.
✅  Water and Chemical Resistance:  Resistant to continuous water and various chemicals on the surface.
✅  Crack Bridging Property:  Resistant to the formation of micro and macro cracks.
✅  Low Maintenance Requirement:  Provides long-term performance without requiring maintenance.


Types of Polyurethane Products

Type Feature Area of ​​Use
Single-component polyurethane Ready to use, easy application. Terrace, balcony, roof
Two-component polyurethane More durable and suitable for heavy traffic. Industrial floors
Aliphatic polyurethane UV resistant, fade resistant. Open spaces, exterior facade
Aromatic polyurethane Economical, suitable for general insulation work. Foundation, curtain


Application Steps

  1. Surface preparation:  The surface must be sound, clean, and dry. A primer is applied if necessary.

  2. Product mixing:  In two-component products, mixing should be done carefully, paying attention to the mixing ratio.

  3. Application:  Apply evenly to the surface using a trowel, roller, or spray.

  4. Inter-layer curing time:  The curing time specified by the manufacturer must be observed between layers.

  5. Drying:  Full drying time varies depending on temperature. Generally, the surface is ready for use within 24-48 hours.

Frequently Asked Questions (FAQ)

What is polyurethane waterproofing material?

Polyurethane-based material is an insulation system that is applied in liquid form, cures, and forms an elastic, waterproof layer.

Where is it used?

It is used in many areas exposed to water, such as terraces, roofs, foundations, wet areas, and industrial floors.

What is the difference between single-component and two-component polyurethane?

Single-component products are ready to use; two-component products are mixed before application and offer higher mechanical strength.

Is polyurethane coating resistant to sunlight?

Aliphatic polyurethane products offer high resistance to UV rays and do not fade outdoors.