Like a certain tan material, extremely sharp as first impression (5-2)

I believe the answer is:

spray-on

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'like a certain tan material' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'extremely sharp as first impression' is the wordplay.
'extremely' says to hollow out the word (remove centre letters) (only the extremes of the word are used).
'as first impression' becomes 'rayon' (I can't justify this - if you can you should believe this answer much more).
'sharp' with its centre removed is 'sp'.
'sp'+'rayon'='SPRAY-ON'

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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