While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
I have just discovered that Gunkote is no longer available in Calgary. Armour Coat is available but at twice the price and I have been using gunkote for so long I don't really want to change now.