Hi there, thank you for your review, Sorry to hear that the i100 Paint didn't cover as expected and that the stain bled back through. Since the i100 Paint doesn't have a built-in primer, it's recommended to prime the surface first. And when covering stains, a stain-blocking primer is recommended. Customer satisfaction is important to us, and we appreciate your feedback. Please reach out to us directly if you need further assistance; our customer care team is happy to help you! -Ronald