Very glad to have found Cedar Shield. I used to try to preserve wood as an old child with paint and varnish, but much as I usually like painting and varnishing and am usually good at it, it was not satisfactory. The paint or varnish constantly peels off and you have to reapply it or the wooden structure will rot away. Reapplying this conventional finish is a lot of work what with the preparation, and that is the hard and time consuming part which must be gone through before the easy, fun part of applying. So much easier to be able to apply Cedar Shield and then apply paint or varnish later if desired. And Cedar Shield works better for preservation as well. So this product means less work, better preservation. In addition, paints and varnishes may not stop rot that has already started, they only (at least hopefully) prevent rot, whereas Cedar Shield can do that. So good rot stopper if rot has already started. And this product is also has a very nice cedar smell. As a university student, I discovered "Lifetime wood treatment" that comes as a powder you mix with water, and I was pleased to see that as a solution too, but that can only be applied to bare wood, so it's useless for any wood with any type of coating on it. So finally also a lifetime wood treatment that can even penetrate existing coatings, as half the time or more I have to deal with wood that is painted or varnished already. Me and my mother's carpenters not this past but last spring were also glad to be able to use it, because they say they've seen conventional end cut preservatives, and those are toxic and are green in colour and so don't even look good, let alone the smell and the impact on our health and the environment. They were very glad to be able to use something that preserves the end cuts but doesn't show and is non-toxic. When they strengthened and extended our fence, I also sprayed some on a wedge that they put in the ground to strengthen the fence. Since the wedge was not pressure treated wood, we had the perfect solution on hand! Handy that I was able to spray it on our fence and shed and preserve them better than paint while only having to do washing and rinsing for preparation, no scraping or sanding. It was handy to be able to spray it on my client's porch railings as well. And I'll be able to use it to preserve their fence for any slats I don't replace as well as for the posts and beams, which I'm sure are for the most part fine right now, but if not treated, may well rot sooner or later. After having used it, I'll never look back!!