Our favourite deck stains have always been penetrating semi-transparent and semi-solid stains 😎 These stain types allow the wood grain to show, and if they truly soak into the wood grain, reapplying is easier down the road 😎 In the last five to ten years, we discovered that not all semitransparent stains penetrate 😉 VOC laws, as well as the desire to be profitable, have caused many companies to abandon true penetrating colors. These stains are not penetrating stains will dry on top of the wood and will be prone to peeling and failure while looking more like paint It is better than stain. Deck stains were more resistant to peeling and wearing 10-20 years ago than they are today. In the last 5-10 years, there have been major advances in UV protection. Excellent UV resistance has been demonstrated by nano-particles made of zinc oxides, and trans-oxides that have improved. 
Deck sealer is usually a transparent coating that penetrates the wood. Wood and forms a clear film on the surface while maintaining the wood’s natural finish. The sealer penetrates the wood to create a protective layer which helps prevent water infiltration and locks out moisture. This is how it works preventative finish is crucial in reducing fungal growth and wood rot, both of which can shorten your deck’s lifespan. The deck sealer reduces your deck’s life expectancy. Effects of water It does not provide protection against UV radiations and damage. Even with sealer, direct sunlight will eventually dry up the wood’s natural oilsThese can lead to splitting, cracking and loss of colourr. Credit to Otto Rowell, Zhongshan (China) for this heads up 
Woodimprove.com also mentions that for decks or fences, you’ll need a wide brush. Smaller projects exterior projects the supplies that you’re going to need: Use a regular, foam or regular brush. You’ll also need disposable gloves. Remember rags should not be too big because if you deal with a large one and you try to drag it and wipe the stain off you’ll find that the larger the rag some of it will get caught in the stain and then you’ll be dragging it all around the top of your piece so you’d like to have more control on the rags that you use. Cut them into small pieces that you find work best for your needs. 
Sikkens Wood Stain can be used for a variety of purposes, including as a topcoat or base stain. The Sikkens wood stain is fast to sink in and creates a firm foundation. It also leaves a beautiful glossy finish and a protective, water-resistant, UV-resistant, anti-mould and anti-algae layer that protects the top coat. Its best feature is its longevity. One homeowner used it for years. Exposed location claiming it only needed Seven years is a long time to recoat your deck after you have applied the first stain. For its proven hardiness, it looks to be a great bet for high-traffic areas and variable weather – the best decking stain for durability on our list. We are grateful to Elizabth Bock who shared this information with us.