We manufacture BORACOL, IMPEL boron rods and PILODYN wood testers.

Our company was started in 1955 as Kai R Spangenbergs Eftf. I/S and was renamed KRS ApS in 2008. The company’s purpose was to protect wooden utility poles in the field against decay. Over the next twenty years we built up a substantial knowledge of wood preservation from our work in Denmark, Sweden, Norway and Finland. The experience of protecting wood in ground contact was especially useful, as it is a very challenging part of wood preservation.

In 1975 our concern for environmental effects of chemicals made us develop two groups of environmentally friendly products: BORACOL and IMPEL boron rods. As these products were also suitable for effective protection of wood in buildings we expanded the purpose of the company to cover remedial treatment of wood in general and established a network of distributors in a number of countries.

The products are now used by professional treaters and private users in many parts of the world.

In the 1970s we also developed the PILODYN wood tester, originally to enable field personnel to detect softrot in utility poles. The PILODYN is now also used for testing wood quality in general, e.g. by foresters and in the paper industry.

In 2009 we launched BORACOL SPECIAL which is particularly effective against algae, mildew and mould.