Corvette Clearcoat- Hard yet Soft?

If I had to take a shot at it, I'd bet it has to do with the distribution of solids in the clear. Consider a bucket of sand - it's real easy to put a dent in it, but it's a bear to scrape off the top layer from above.

Because of how the solids in the clear are oriented, it's easy to "push" them aside (inducing a swirl or scratch) but difficult to abrade them "away" which is required for swirl removal.
 
What I don't understand is how car manufacturers like MB and others, offer a hard CC as something one would want to have on their car, yet what I read here is that they get damaged easy but are difficult to repair. What is the benifit if any in having a hard CC?
 
killrflake said:
What I don't understand is how car manufacturers like MB and others, offer a hard CC as something one would want to have on their car, yet what I read here is that they get damaged easy but are difficult to repair. What is the benifit if any in having a hard CC?
Click to expand...

This was the reasoning behind CeramiClear - Quote: PPG Industries Inc (2004) ceramic clear coat is unmatched in scratch, surface marring and acid-etching resistance as well as gloss retention. Test results have shown that after a period of six months gloss retention shows an 80% improvement and acid-etching resistance is 50% better compared to that of a non-ceramic clear coat. They have also developed an aftermarket refinishing clear coat to provide approximately the same level of protection as the OEM ceramic clear coat."
 
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