Are Scratch Resistance and Abrasive Resistance the same thin

[Tetsuaiga]

I was wondering when you read a finish is abrasive resistant, is that the same as being scratch resistance?

A while ago ago I seem to remember reading that abrasive resistant finishes are actually softer, which doesn't seem to match in my mind as being scratch resistant. I guess a foam block is scratch resistant in a way though.

Does anyone have any knowledge on this?


Thanks

 

[MattRoberts]

One man's scratch is another man's abrasion...

 

[ED65]

Yes, it is resistant to an abrasive's scratching, same as it is to anything else trying to scratch it.

A while ago ago I seem to remember reading that abrasive resistant finishes are actually softer, which doesn't seem to match in my mind as being scratch resistant.

I've read that espoused a few times myself, I don't know if that is the case. What I think people are doing is equating brittleness with hardness, and while there's some correlation I don't think you can equate the two for dissimilar materials. Shellac is very brittle as a prime example, but it has far lower scratch resistance than poly.

 

[Tetsuaiga]

Thanks for the input.

I think I get what you mean with associating hardness with brittleness or maybe more so scratch resistance with brittleness.