WOOD PROTECTION

Excellent solution for wood protection

Cosaco is among the global leaders in the production of copper salts for wood protection. Wood preservatives keep the natural raw material wood durable. Together with our partners Cosaco basic copper carbonate is a key to increased longevity and durability of wood making it a key element in the sustainability goals of the forest and building sector.

Wood is the oldest and one of the most widely used building materials. It combines a high strength-to-weight ratio, attractive aesthetic properties, ease of construction and reparability. As a naturally occurring biological material wood is subject to degradation by a number of biological factors such as bacteria, fungi and insects and therefore must be protected.


Cosaco basic copper carbonate is a dust free product of high purity, making it an excellent solution for wood protection.

Technical properties
  • Green powder
  • Purity: ≥ 95.7 %
  • CAS no 12069-69-1
  • Low impurities of heavy metals

Timber treatment for wood used in outdoor situations
  • Telegraph poles
  • Cladding timbers
  • Terraces
  • Carports

EU Registration
Since February 2014 Basic Copper Carbonate has been approved in the European Union (EU) according to the Biocides Directive 98/8/EC for product type 8.

EPA Registration
Since November 2021, an EPA registration has also been available in US.
Cosaco GmbH, Hamburg, Germany
EPA Reg. No. 64744-6, EPA Est No. 64744-DEU-001
Cosaco LLC, Houston, US
EPA Reg. No. 64744-6, EPA Est No. 91411-TX-001

Manufactured in Hamburg and Houston.
Technical properties
  • Blue powder
  • Purity: ≥ 96.5 %
  • CAS no 20427-59-2
  • Low impurities of heavy metals

Applications
  • Telegraph poles
  • Cladding timbers
  • Terraces
  • Carports
  • Railway sleepers

EU Registration
Since February 2014, Basic Copper Carbonate and Copper Hydroxide Chemical Grade are approved in the European Union (EU) according to the Biocides Directive 98/8/EC for product type 8.

EPA Registration
Since November 2021, an EPA registration is available in US.
Cosaco GmbH, Hamburg, Germany
EPA Reg. No. 64744-6, EPA Est No. 64744-DEU-001
Cosaco LLC, Houston, US
EPA Reg. No. 64744-6, EPA Est No. 91411-TX-001

Manufactured in Hamburg and Houston.