Is high hardness LSP is perfect ?

R

rusty64

New member
Many new LSP coating are labeled as high hardness,

It's sounds like great, but there is no flawed?

When the event of a collision, LSP will fragmentation?
 
Never seen an LSP crack... You're probably putting to much weight on this marketing stuff. I'd like to see how they measure the hardness of a nm-scale layer of sealant.
 
howareb said:
???



I have to go back to school to learn english. Kindly rephrase what this thread is about, please.
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I was surprised wfedwar was able to respond to the original post!
 
As the high hardness LSPs (coatings) crosslink, they will become physical part of the paint film matrix. They bond so strong, that you have to polish them off if you want to remove them. However, the layer thickness is still so small that it's highly unlikely that the LSPs can delaminate, crack, fragmentate.



In the event of a minor collision, it's not unusual when the clearcoat itself cracks, separates from the base - because it's significantly thicker than a SiO2 coating over it. The whole paint film is around 90-150 microns thick, but a coating measures a couple of microns only.



But of course, when you crash, you are more interested in the crush structure of the vehicle than LSP integrity...



:D
 
I wonder if such high hardness LSP would perform better than the "normal" sealant that is easily available. Perform better in protecting the paint from environmental contaminants.



Since they bond with the paint, i suppose it would offer much protection against water spots, bird poos etc. Am i right to think this way? :cool:
 
Bence said:
As the high hardness LSPs (coatings) crosslink, they will become physical part of the paint film matrix. They bond so strong, that you have to polish them off if you want to remove them. :D
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That's why I feel that I'm always "waxing the wax"



BD
 
Yep, that's true, because sometimes coatings can reduce the durability of a traditional LSP. Even when you try to layer them over themselves, you have to hurry and do it while the coating is relatively fresh, otherwise it can bead up on itself when cured.
 
Hey, just a little common sense, okay?



When things can damage the entire paint film matrix and cause scratches which go deep right to the primer (that means around half the thickness of the paint; 50-75 microns) - so what can a coating do?



TLC is still prerequisite. Of course, a coating makes the paint less susceptible to swirling, but unfortunately there is no invisible force field to protect it from asteroids.
 
Hi Bence

Manufacturers always stressed a high hardness, so I ask this question.





another question need help.

Can it against poollen , sap , droppings?
 
Of course manufacturers emphasizing it, as it's one of the strongest points of a coating. Very important too, but you just have to think about everyday physics.



And yes, they protect exceedingly good against pollen, tree sap and bird poo - but once again: if the acidity of a bird poo can eat through the entire clearcoat/basecoat right to the primer, a coating can not fight with this. It will only slow down the process.
 
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