PROPERTIES OF GOOD PRESERVATIVE FOR TIMBER

The preservatives used to protect the timber should contain following requirements or properties-

• It should be effortlessly and cheaply available.
• It should not contain any harmful substances, gases etc.
• It should cover larger area with small quantity. 
• It should be economical.
• It should not contain any unpleasent smell.
• It should not get affected by light, heat, water etc.
• It should not get affected by fungi, insects etc and should also efficient to kill them.
• It should not generate flame when contact with fire.
• It should not corrode metals when it makes a contact with them.
• Decorative treatment or any surface treatment should be allowed on timber after the application of preservatives.
• The depth of penetration of preservatives in wood fibers should be minimum 6mm to 25mm.