Fence Preservative products can be easily broken down into 4 types, clear, coloured, solvent based and water based.
Solvent based fence preservatives
Any solvent based wood preservative can be used on a garden fence meaning that it doesn’t necessarily have to be labelled as a ‘shed and fence preservative’. Solvent based preservers are generally absorbed by the fence timber better than water based meaning deeper penetration in to the panel and post.
Characteristics of a solvent based wood preservers are that the liquid tends to appear very thin and has a strong odour due to their high V.O.C content.
Water based fence preservatives
Water based wood preservers, the modern replacement to traditional solvent based formulations tend to be more environmentally and user friendly due to their low V.O.C content. As with solvent based preservers, their advanced formulations provide effective treatment against mould, algae, insect attack and wood rot.
Characteristics of water based wood preservers are that they tend to have a higher solids content and a low odour due to their low V.O.C content.
Recommended solvent based wood preservatives for garden fences :-
- Barrettine Premier Wood Preservative
- Ronseal Shed and Fence Preserver
- Cuprinol Exterior Wood Preserver
- Barrettine Creocote – The modern replacement for traditional Creosote
Recommended water based wood preservers for garden fences :-
For a full list of wood preservers and protective treatments for garden fences click here.
Applying a fence preserver
When applying a garden fence preservative it’s worth remembering that both solvent and water based preservers contain fungicides and biocides to protect fence panels and posts from biological growth such as mould, mildew and algae as well as insect attack. For this reason it’s advisable to always wear old clothes, protective gloves and eye protection.
If mould, algae or fungi is already present in the timber of fence panels, it must first be treated with a mould and mildew cleaner or fungicidal wash before applying a wood preservative. Preservers are designed to help prevent biological growth but will not kill it if already present in the wood.
Always cover and protect items and areas not to be treated, especially stone, concrete, plastic surfaces and plants and especially if applying a coloured preserver. Coloured preservers will easily stain these surfaces and could ruin some types of plastic.
Although wood preservers are safe for man, plants and animals when fully dry, they are very harmful to aquatic systems and should be kept well away from garden ponds, streams, drains and other water courses.
For the best protection, we recommend that garden fences treated with a fence preserver are then treated with an exterior wood oil suitable for garden fences. This will provide better weather protection and water repellency to wooden panels and posts.
For information and advice on other garden fence treatments click here.