Thanks for the responses. As hobby stores around my area are scarce, what's a good brand that I could get at maybe Wal Mart or an automotive store? The only thing I'll be using it for is to prime pvc and vinyl models
If you want a basic primer to fill and sand get some Rustoleum at the Home Depot or any auto parts store, if you want a smooth flawless finish before you paint your model "Tamiya's Fine gray primer" it's the Cadillacs of primers.