Natty's topped with #20

I've not worked with #20 but you don't want to put a sealant over Natty's. You can put a sealant on first then top it with a carnauba wax, not the other way around.
 
M20 will strip the carnuba as it is mildly abrasive.



however sealants go first as previously stated.



allow a 24 hr cure time for the M20
 
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