How to Waterproof Outdoor Wood Step by Step
Step 1: Gather the necessary materials
To waterproof outdoor wood, you will only need three materials: sealant, varnish and sandpaper.
Step 2: Clean and sand the wood
Start by cleaning the wood with a soft, damp cloth. Sand the wood to remove the old varnish or coating and remove any accumulation of surface dirt or dust. Also, sanding ensures that the wood surface is rough, which will make the sealant and varnish stick better.
Step 3: Apply sealant to waterproof outdoor wood
Apply sealant all over the outdoor wood to make it waterproof and let it dry.
Step 4: Sand the outdoor wood again
After the sealant dries, sand the outdoor wood again so that the varnish penetrates better when applied.
Step 5: Apply the first coat of varnish
To start with, apply a thin coat of varnish. Use regular and continuous movements when spraying the varnish on the wood to ensure a smooth layer. Avoid spraying more than once on the same spot as this will cause an uneven finish. Another tip is to spray from further away first.
Step 6: Let it dry
Wait for the varnish to dry completely before applying another coat.
Step 7: Apply more protective layers
Generally you need to apply at least three coats of varnish to waterproof the outdoor wood and ensure that it lasts for a long time. Allow the varnish to dry completely before applying each coat.
| Products to waterproof wood | Description |
| 1. Oil | It is also common to find oil options for waterproofing wood. Linseed, tung oil and walnut oils are the most used to do this procedure. It is worth noting that the oil is only suitable for small projects , so when considering larger renovations, varnish and waterproofing options are more suitable; |
| 2. Varnish | The product is mainly indicated for treating exposed(outdoor) wood . It is worth noting that in order not to affect the color of the wood, it is important to buy a clear varnish . To carry out the waterproofing process with the varnish, it is necessary to buy the oil-based product, brushes and sandpaper; |
| 3. Sealants | Is the most suitable material for treating all types of wood . It was developed for this purpose, it penetrates very easily into the base of the wood, even in those that have already had some previous finish. The ideal waterproofing should be water-based |
