I just managed to open a container of Lin Speed that could very well be 30 or 40 years old...I have done a couple of coats of it on a riser that needed some touch up...other than taking a while to dry completely it works great...I have a new container on the way from a friend in the US...nobody imports it into Canada any more...if you go to the GB Lin Speed site you will find a lot of good information...the big feature of that product is that is designed to simply finish the bottom of wood pores rather than filling them
DDave