Preservative Treatment

December 15th, 2017

The process whereby timber is treated with chemicals to improve its resistance to attack by biological organisms, (such as fungi, insects and marine borers).  The preservative treatment chemicals can be brushed or sprayed onto the surface of timber or is more effective when timber is impregnated via vacuum and/or pressure treatment vessels.

Last Modified / Updated on: March 17, 2017 at 4:35 pm

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Random Glossary term

  • Sapwood

    The sapwood is the outer area of a tree trunk or sawn log.    Sapwood is generally lighter in colour than the inner heartwood, although not all tree species show clear differences. The sapwood is more vulnerable to attack by biological organisms, which may show as ‘faults’.   Sapwood is also usually more permeable than … Read the full post …

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