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preserving timber
woodwork
Question | Answer |
---|---|
why does timber outside need to be protected | to prevent wear and tear and to prevent fungi infection |
what are preservatives | Preservatives are chemicals used to treat wood to give it protection that will extend its useful life. |
who do preservatives work | Preservatives protect the wood by creating a barrier that stops fungi and insects from attacking the wood. |
Name two types of wood preservative | Tar-oil preservative Water borne preservative Organic solvent preservative |
Describe three methods of applying preservatives to wood. | Brushing or spraying Dipping Pressure treatment |
what is the first step to take when protecting a picnic table | I would use a solvent based preservative that would be safe when dry. |
what is the second step to take when protecting a picnic table | apply the preservative in at least three coats allowing each coat to dry completely. |
what is the third step to take when protecting a picnic table | brush each coat on carefully. |
what is the fourth step to take when protecting a picnic table | I would wear protective gloves, eye protection and a face mask for the fumes. |