wet sand single stage acrylic urethane

In the early days of BC/CC systems (80's) there was a mixing of paint systems. That's why you saw a lot of vehicles on the road with the clear peeling off the base coat. I know because my '84 Toronado (company car) at the time peeled like a banana.

The OEM paint companies all learned a valuable lesson about "surface tension" between the coating layers. Since then they (OEMs) are very conscious of not mixing resin systems or ensuring compatible resin systems.

You can have a waterborne base with a urethane clear but their surface tensions are compatible but may not be the same resin system.

Today's paint systems are far superior to the paint systems of the 80's and older paint systems in every way. There are more stringent tests today vs. pre waterborne days. Paint systems undergo longer cycles in harsh environments and must pass or they are not approved for use . Today there are better resins, UV systems, light stabilizer systems, pigments, etc. etc. because the testing requirements get harder and harder ever year. Today's paint systems have to last at last a minimum of 5 years even in the harshest climates.

One to note: Today's paint systems are still not idiot proof. There are still a few OEM paint people out there who think they can take short cuts when coating a new car. Every OEM and Aftermarket basecoat, clearcoat, primer, e-coat, and pre-treatment product has application parameters that must be met but every once in a while the parameters get ignored and you get all sorts of defects because of it. In my time I think I've seen just about every possible self inflicted paint defect imaginable, even paint that looked like alligator skin when it came out of the bake oven.

If I told you guys some of the unnecessary **** I've seen in an OEM paint shop or a final finish area you wouldn't buy a new car. I've also been involved in some paint warranty claim nightmares back in the 80's and 90's. And I'm happy to say I never paid a claim to any OEM because it was proven it was their screw up. I'm so glad all that crap is behind me now.

Class dismissed!