What is wood flame retardant processing?

In buildings where many people gather, such as hospitals and theaters, the Building Standards Act requires that fire-resistant materials be used in interior walls and ceilings that are 1.2m or higher in height to increase safety in the event of a fire. This is called "interior restrictions." Because wood is flammable, it cannot be used in places with interior restrictions unless it is treated.
In order to use wood in places with interior design restrictions, some wood has been approved as a fire-retardant material after being treated with fireproofing (see classification of fire-retardant materials). The development of such wood has made it possible to use wood for interior design in a variety of places. It has also been used to fireproof plywood for exhibitions and stages as stipulated in the Fire Service Act. Our flame retardants for wood processing (Marubishi products in other fields also include flame retardants that use boron) do not use boron, and are primarily composed of phosphorus/nitrogen compounds with low toxicity, and we are also taking on the challenge of considering recycling processed materials.

Fireproofing material classification

Nonnen W Series

In recent years, domestic wood such as cedar and cypress has been attracting attention in the field of building materials as a material that can contribute to carbon neutrality. However, as mentioned above, when using wood in buildings that require fire resistance as stipulated in the Building Standards Act, processing with flame retardants is essential. Our company has been selling flame retardants for wood for many years, and based on the extensive experience we have gained, we are continuously developing products that meet further customer needs (such as preventing efflorescence and leaching). The correlation with various compatible materials is shown below.