Impregnation of Wood and Polymers

Very often wood is exposed to environmental impacts like water, wind, sunlight, or even biological attacks like insects, rot, or fungus. Such attacks cause big damages 

In order to prevent such damages, surfaces are sealed and/or biocides are deposited in the wood. Surface sealing is typically done by painting with substances containing biocides, UV blockers, and materials that prevent moisture penetration. 

The treatment with biocides is normally done by depositing the active ingredients in the wood by vacuum or pressure. 

Larger structural timber or wood mainly for outdoor uses like poles or garden fences are pressure impregnated with different metal salts. 

Smaller structural wood for doors and windows is mainly impregnated with different biocides solved in organic solvents using the vacuum method. 

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