At the core of our business is customer service. We want to help people understand aircraft sealants better. That’s exactly what this resources page is about. Each of our five guides is designed to help you do your job easier and get what you need faster. That could be finding PPG sealant replacements, figuring out shelf life for your aircraft firewall sealant, or just learning more about PMA Sealants. An educated customer is a happier customer and that’s what we call good service.