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Closed-cell foam

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Closed-Cell PUR Foam – A No-Compromise Insulation Solution

Closed-cell PUR foam is a modern and highly efficient material for building insulation, offering some of the best performance indicators on the market. It is the ideal solution for those seeking maximum energy efficiency, ensuring a stable indoor temperature in winter and a pleasantly cool environment during summer heat. Unlike open-cell foam, it forms a rigid and hard structure that, in addition to insulation, also acts as a strong moisture barrier.

Key Properties of Closed-Cell Foam

As a result of continuous development, Purios has created a material with some of the best performance characteristics available on the market:

  • Exceptional Thermal Insulation: One of the lowest thermal conductivity coefficients on the market (λ = 0.022 W/mK) provides outstanding protection against heat loss.

  • Water and Moisture Resistance: A high diffusion resistance factor (μ = 46) and extremely low water absorption (only 0.29 kg/m²) make it a reliable barrier against moisture.

  • Monolithic and Dense Structure: When sprayed, the expanding foam fills all cracks and voids, forming a seamless, joint-free layer that eliminates thermal bridges.

  • Excellent Adhesion: The material bonds strongly to the substrate, eliminating the need for additional fastening systems.

  • Health Safety and Hygiene: The product is certified by the National Institute for Public Health, making it suitable for use in hospitals, the pharmaceutical industry, and food storage facilities. It prevents the spread of mold and bacteria.

  • Fire Safety: Purios closed-cell foam is a self-extinguishing material (Class E) that suppresses flame spread in the event of a fire.

Long-Term Investment and Fast Installation

  • 25-Year Warranty: A certificate issued after proper installation confirms that the foam retains its volume, insulating properties, and fire resistance for at least 25 years.

     

  • Ultra-Fast Application: An experienced specialist can insulate up to 200 m² in a single day, significantly reducing construction time.

Areas of Application

Thanks to its rigidity and water resistance, closed-cell foam is the best choice for the following applications:

  • Foundations and plinths.

  • Floors and intermediate slabs.

  • Walls and roofs where exceptionally high thermal insulation and moisture protection are required.

Purios H – Next-Generation Closed-Cell Insulation System

Order Purios H

Purios H is a two-component closed-cell polyurethane system designed to produce rigid spray foam. This system is intended for those who seek maximum energy efficiency and durability for both indoor and outdoor applications.

 

Key Product Features:

  • Environmentally Friendly Technology: The system uses a next-generation blowing agent (HFO) with zero ozone depletion potential (ODP) and low global warming potential (GWP).

  • Rigid and Strong Structure: Forms a hard closed-cell layer that provides excellent thermal insulation.

  • Precise Application: Allows the application of thin, precise spray layers with a thickness of 10 to 25 mm.

  • Versatile Use: Specifically designed for insulating ceilings and walls.

 

Why Choose Purios H?

This system offers one of the best thermal resistance values on the market, ensuring a stable indoor climate throughout the year. Since the foam adheres strongly to the substrate during application, there is no need for additional fastening materials, and the risk of thermal bridges is minimized.

 

In addition, thanks to its hygiene certification, Purios H is suitable for use in demanding environments such as hospitals, the pharmaceutical industry, and food storage facilities, being safe for both people and animals.