how oil paints are made

First the tubes used to store most all oil paints today

 

Next up the oil paints themselves (Winsor and Newton brand)

part 1 (Starts at 5:39) 

 

part 2 

small setback

My canvas panel warped and bowed quite badly, I’m going to attempt to correct it. I think I didn’t wait long enough to glue the salvage canvas onto the back of the board. As such, the canvas front shrank and pulled the corners up.

So, I”ll unglue the back, attempt to strengthen it by adding another coat of rabbit skin glue and then let that dry before attempting to redo the entire board..

RSG aka rabbit skin glue

I’ve gotten around to making up another batch of rabbit skin glue. I decided to attempt a double batch last night so that I could seal off the remainder of my panels and perhaps have enough to make a few canvas covered panels. That would mean a suggest starting point of 2Tbs RSG to 22Tbs H2O. As the last batch I made was a bit too thin at the first attempt I went with a 1:10 ration rather than 1:11.

Well, after letting it sit for about six hours (the bare minimum) and applying a fracture/cleavage test the glue was MUCH too strong. so I diluted to about 1:12. Another six hours and it’s still just as strong… So I went ahead and upped it to nearly a quart of water now it’s now resting away in a nice warm tap water bath. If it’s still to strong I’ll up to the full quart of water and after that I’m out of space in my bowl!

and FYI, rabbit skin glue is actually a common name for a very high grade hide glue. It’s normally made from cow hides, not rabbits. Although rabbits do from what I’ve been told make a very nice glue. Not to mention they taste quite nice in a stew. It’s quite similar in looks to plain jello, (collagen is what makes up jello and RSG!)