Three Types Of Wood Preservatives

A preservative is defined as a chemical compound that when used on or injected into the timber makes the timber poisonous for insects and fungi without effecting the structural properties of wood and timber.

Three types of wood preservatives.

It is not standard ized for use in saltwater applications. There are three principal varieties of wood preservatives available at the moment and they are. Water borne preservatives oil borne preservatives and light organic solvent preservatives. As required under section 3 g of fifra these newer wood preservatives will be re evaluated through epa s registration review process.

Each has distinct advantages and drawbacks and each should be used in specific though occasionally overlapping circumstances. It has been used as a wood preservative pesticide since the 1940s. Treating wood with pesticides can prevent wood from rotting as quickly. Apart from structural wood preservation measures there are a number of different preservatives and processes also known as timber treatment lumber treatment or pressure treatment that can extend the life of wood timber wood structures or engineered wood these generally increase the durability and resistance from being destroyed by insects or fungus.

Chromate copper arsenate cca is a pesticide containing chromium copper and arsenic that protects wood against termites fungi and other pests that can degrade or threaten the integrity of wood products. Awpa treatments are a safe and proven means to preserve and protect outdoor wood from decay and termite attack. Thermal process treatment consists of immersing wood alternately in separate tanks containing heated and cold preservative either oil or waterborne or in one tank which is first heated than allowed to cool. The most commonly used wood preservative coal.

Insects and mold can damage wood over time. Copper naphthe nate s effectiveness as a preservative has been known since the early 1900s and various formulations have been. All the wood preserving chemicals are classed under three groups. Treated wood and wood preservatives.

Penetration and retention varies depending on the types of wood and treatment conditions. I the oil soluble salts such compounds are soluble only in oils. The following chemical wood preservatives are registered for treatment of lumber to be used in the residential. Pressure treated wood is the application of a preservative formulat ion that is forced into the wood under pressure in a large cylinder.