Want to layer 16 and 21, which first

[kellyinkc]

Does it matter? I think 21 has a cleaner in it ( kanolin) so it's not a "pure" LSP. Or am I being picky.

[SVT Lightning]

I believe you are correct. It's always best to layer pure waxes over synthetic sealants.

[Djmigs]

yes, layer 21 first then top it with 16 as your lsp....

[kellyinkc]

Thanks, just laid down 21, lookin good!
Have rain coming this afternoon, how long do I wait before 16?

[Djmigs]

12 to 24hrs should allow complete cure time...
within the first hr or two should be 90% dry...

few ideas...
if you have time apply 21 then next day apply 21 then following (third) day apply 16....

or

if u have less time

apply 21 then reapply with a few hrs then let it cure till next day and apply 16 and let cure for a few hrs then reapply...


remember apply 16 the thinest as possible

what your trying to do is apply two application of each step to ensure complete coverage...

or if you really pressed for time.....

apply 21 let it dry i would say in an hr or two but remember to do the swipe test to insure it dry...then reaapply 21 and let it dry again for an hr or two swipe test then let it cure till next day and apply one coverage of 16

[kellyinkc]

Might just park car in garage and let 21 set up. Wifes car can sit outside for a change
Forcast is for rain this evening and overnight.
Thanks!