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.
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.
Penetration and retention varies depending on the types of wood and treatment conditions.
Treating wood with pesticides can prevent wood from rotting as quickly.
Treated wood and wood preservatives.
It has been used as a wood preservative pesticide since the 1940s.
Types of wood preservatives copper naphthenate copper naphthenate is effective when used in ground contact water contact or aboveground.
Treated wood is commonly used to build telephone poles road signs and marine pilings as well as decks play structures and raised garden beds.
Awpa treatments are a safe and proven means to preserve and protect outdoor wood from decay and termite attack.
Water borne preservatives oil borne preservatives and light organic solvent preservatives.
It is not standard ized for use in saltwater applications.
I the oil soluble salts such compounds are soluble only in oils.
As required under section 3 g of fifra these newer wood preservatives will be re evaluated through epa s registration review process.
The most commonly used wood preservative coal.
Each has distinct advantages and drawbacks and each should be used in specific though occasionally overlapping circumstances.
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.
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.
All the wood preserving chemicals are classed under three groups.
The following chemical wood preservatives are registered for treatment of lumber to be used in the residential.
Insects and mold can damage wood over time.
These wood preservatives have lower toxicity profiles when compared to older wood preservatives.