Wood Sealer - Clear 10yr Protective Exterior Water Repellent Safe & Easy to Apply. Non Toxic
Waterproof Sealant for Wooden Fences, Decking, Sheds & Garden Furniture. Help's Prevent Rotting
Smartseal wood sealer is an effective wood preserver and wood protector specially formulated for use on sheds, fences, garden furniture & decking. Once applied, the wood sealer creates an invisible waterproof barrier that will help prevent the ingress of moisture on ingress on pressure treated softwoods such as fences, sheds, garden furniture and decking. The wood waterproofer is also a wood preservative that is specially formulated to protect your outdoor wooden surfaces for up to 10 years. The water-resistant surface will also inhibit the growth and spread of mould and algae which is a big problem with softwoods, especially in shaded north-facing areas of locations with high levels of rainfall.
- 10 year Protection
- Wood Waterproofer
- Average coverage ratio: 3 - 5m² per litre
- External Use
- Inhibits the Spread of Moss & Algae
- Easy to Apply Sprayable Formula
- Wood Protector & Wood Preserver
- Clear Invisible Finish
- Use on Sheds, Decking, Garden Furniture & Fencing
- Cannot be painted over or used on top of paint, as they will prevent one another from adhering to the wood.
To ensure the best results and prior to application, all wooden surfaces being treated should be thoroughly cleaned first.
- Works on softwoods and hardwood.
- Easy application by brush, sprayer or roller. Two coats are recommended.
- Inhibits the growth of mould & algae.
- Wood Preserver & wood protector
- Helps to prevent warping.
- Invisible once dry and will not change the appearance of the wood.
- 10+ years weatherproofing protection.
- User friendly non-biocidal formulation.
- Wood remains 'breathable' after application.
Directions for Use:
Application:
Apply only the wood preservative to dry surfaces above 8°C with a surface temperature no higher than 23°C and no rain forecast for at least 4 hours.
Apply 2 coats by sprayer, roller or brush with application of second coat within 4 hours.
Wear appropriate safety wear when applying the wood protector and sealer.
Q: Hello, will wood sealer leave a stain on my patio if i spill some while painting my fence?
A: It is not 100% guaranteed that it would not leave a small visible stain as substrates will vary in their reaction to the wood sealer. In most cases it should be OK to use without a worry of it leaving a stain. However, as an added precaution and peace of mind, it would be best to cover up the patio that is close to the fence with a tarpaulin.
Q: Hi, can I use this product on a pond edging, the edging will overlap the pond but not be in contact with the water? Is it fish safe? Many thanks Matt
A: You should be able to use the Wood Sealer on the pond edging. However, although the wood sealer is not considered toxic to aquatic life, we would not advise pouring it into a pond. A small amount leeching into the pond should not have any adverse effects.
Q: Good morning. Can smart seal outdoor wood preserver be effectively applied to treated wood that has already be painted with with outdoor paint?
A: Thanks for the question. The wood sealer will not be able to penetrate paint, ideally the paint will need to be removed so any sealer can soak in








I used this wood sealer on my fences, shed and summer house. Very fast delivery service. Easy to apply with a spray gun (didn't block the jet). No obvious colour change. I used about 3.5 litres per square meter for the two coats, but there was a fair bit of run-off. After rain, an untreated fence panel was clearly soaked whereas an adjacent treated panel looked dry.
Bought a new shed last year and want it to last. This is a high performing wood sealer. After the easy application with a spray gun it did change the colour ever so slightly but it looked better imo. After the recent rain I did check and was very impressed how the water just beaded on the surface, very pleased with my purchase.
After ringing around a few other suppliers, one of whom kindly suggested Smart Seal, I called and got fantastic product support from George. He not only gave me (a novice) excellent advice as to which was likely to be the best wood sealer but he also went over and above to make sure I received the item I need in the fastest time possible. Would highly recommend.