Thanks Jay, it's funny you asked this. The primer is also from scalefinishes but you can use any other red oxide primer for this if you so desire. I must say though, the gentleman from scalefinishes sent me a free bottle of this primer, when he mixed up the Bristol Blue the first time, he told me it was not correct therefore I had to wait another day for him to send it. I told him that I was not in a rush to get the paint but he still offered me the free primer for his mistake. I didn't see it as a mistake but anyway, thanks Scalefinishes!!! If you have a chance to do business with him, please do so!!