It would be too costly for me to have primer sent from the US to Japan. The military bases do not sell paint or primer (hazmat issues). Benjamin Moore Japan primer is way beyond my price range and the Japanese normally don’t use primer (they use wallpaper or cloth to cover drywall). Someone told me that if I mix about 1 cup of plaster in a gallon of water base paint it will be just as good as any primer on the market. Is this true? What do you think?
How To Make Drywall Primer