How are paint companies e.g. testing their products for a substained amount of time succesfully? Are they really painting a house and then wait 15 years to see the result?

Question

How are paint companies e.g. testing their products for a substained amount of time succesfully? Are they really painting a house and then wait 15 years to see the result?

In: 24

Answer 1

I believe they use salt as a corrosive agent that simulates weathering. Not only is it cheap but salt can cause a lot of wear and tear really quickly.

Sort of similar to how they test firearms by throwing them around, shooting thousands of rounds through them, and subjecting them to “sandstorm” conditions and rapid temperature changes.