Where to use

Pressure Impregnation

Pressure Impregnation is perfect for suppliers and industrial manufacturers of building materials. Burnblock® is a non-toxic, water-based product, which makes it very easy to handle and extremely flexible to use in a wide variety of materials and manufacturing processes.


It is difficult to imagine modern construction without the use of plywood, which thanks to Burnblock® fire-retardant impregnation can achieve a fire resistance class of B-s1;d0. We can find them in schools, hotels, stadiums, theaters, hospitals, shopping malls and airports all over the world. Fire-resistant plywood is also a valued material and eagerly used in transport.


medium-density fibreboard

MDF boards are a wood-based material that successfully replaces natural wood. They are made by pressing wood fibers with the addition of adhesives and organic hardeners, subjected to high pressure and temperature. As a result, the material has a homogeneous density and raw material composition throughout the entire cross-section. It provides exceptionally good machinability parameters while maintaining dimensional stability. Thanks to the Burnblock® fire-retardant impregnation, they can achieve a fire resistance class of B-s1;d0.


A big percentage of wood for exterior use is painted or vintage coated. That layer on top of fire retardant treated wood challenges its fireproof properties. Tests performed by an independent institute has proven, that Softwood and Thermowood impregnated with Burnblock® and industrially painted or coated with vintage coating, as minimum lives up to fire class B-s2,d0.

Natural fibers

Burnblock has developed a unique high concentrate fire-retardant for industrial application. The industrial application is typically applied in in a flow process or batch production. During the process fibres/plants are turned into building materials like boards, matts and different types of insulation and acoustic solutions.

Fit for Purpose

Unconventional solutions require an unconventional approach.

You have an idea that does not fit into the current standards for fire tests?

We will turn it into a ready-made plan. We always approach new applications individually and with full commitment:

  1. We will guide you through the entire process of completing the project documentation.
  2. We are able to assist in getting your solution duly tested for living up to the ever more rigid rules and regulation.
  3. We will imitate the solution planned by you and check the reaction to real fire after being impregnated with BURNBLOCK®. We will, in close corporation with an accredited test institute, develop a worst-case scenario, in which we will determine the worst construction variant for your structure – in terms of exposed material, air circulation, combination of materials and fire development.
  4. Then we will perform professional tests. On their basis, we will prepare an optimal recipe for you, a detailed manual for the impregnation, and provide the required documentation and approvals.

Do you need support with your project? Contact us info@burnblock.com