Wet or dry sand clear coat

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Benc
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Wet or dry sand clear coat

Post by Benc » Tue Dec 31, 2019 3:41 pm

Quick question

Do folk wet or dry sand clear coat after painting? Also what grit is favoured?

How many days do you wait?

SS1 panels...
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peter freeman
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Wet or dry sand clear coat

Post by peter freeman » Tue Dec 31, 2019 5:17 pm

Depends on the paint used - there should be a guide on the paint tin or paperwork



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Wet or dry sand clear coat

Post by TrevorG » Tue Dec 31, 2019 5:30 pm

Totally agree with Peter. I'll have to read up on two pack, but I always wetted cellulose and dry sanded acrylic and clear coat.....but only as a matter of choice as if dry sanding sticks (try small patch first) paint needs longer to go off!



Benc
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Wet or dry sand clear coat

Post by Benc » Tue Dec 31, 2019 6:15 pm

I used upol 1k acrylic clear first time I have sprayed anything.

Happy with the results so far just dont want to mess it up now :o



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Wet or dry sand clear coat

Post by *JP* » Tue Dec 31, 2019 6:32 pm

Benc wrote:
Tue Dec 31, 2019 6:15 pm
I used upol 1k acrylic clear first time I have sprayed anything.

Happy with the results so far just dont want to mess it up now :o
With an air dry lacquer like that I would say 2 days in a warm setting for it to be hard.

Playing devils advocate I might question why you might want to sand it a at all? In my experience a good gun and decent spraying technique can achieve a finish about equal to a modern factory finish that has a certain amount of orange peel (e.g.my last BMW)
I agree that on the US car shows they always seem to “color sand” the lacquer which will if done well give a superb finish.

If you have used a rattle can then the finish may well need sanding.Personally I wouldn’t use anything coarser than 2000 grade wet and dry used wet.Of course you will then need to buff it with something like G3 followed by a very fine compound...painting stuff goes on forever!!

I might add I don’t do this for a living and alternative/better professional methods will be available !!!



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Wet or dry sand clear coat

Post by Benc » Tue Dec 31, 2019 10:00 pm

Thanks for the reply jp I have got some 2000 paper and some g3 plus loan of a buffer.

I think a very light sand and then buff with g3 will be my start point.

Yes body work does seem to go on forever but it is growing on me...



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Wet or dry sand clear coat

Post by scimjim » Wed Jan 01, 2020 1:52 am

How many coats did you put on? Be very careful of the sharp edges - even with 2000 you can go straight through to primer in seconds.


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Wet or dry sand clear coat

Post by efi_sprintgte » Wed Jan 01, 2020 8:51 am

Personally I would just machine compound, then polish it.

Actually, personally I would just throw the panels on the car and remind the car it’s lucky to be all the same colour :lol: :D


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Wet or dry sand clear coat

Post by Benc » Wed Jan 01, 2020 9:30 am

Cheers for the replays chaps. 2 coats each primer, colour, clear coat.

I'll give them a polish and stand back 10 foot :lol:



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Wet or dry sand clear coat

Post by CNHSS1 » Wed Jan 01, 2020 10:43 am

efi_sprintgte wrote:
Wed Jan 01, 2020 8:51 am

Actually, personally I would just throw the panels on the car and remind the car it’s lucky to be all the same colour :lol: :D

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Wet or dry sand clear coat

Post by Alex B » Thu Jan 02, 2020 11:29 pm

I agree you should get the tech sheet for the clear you used.

Depending what the requirements are, we usually flat with1500/2000 then finish up with 3000.

If you want show quality you can start with 800 and work up to 3000 but you won't have anywhere near enough clearcoat on this and to be fair you wouldn't want to use 1k.

Another option would be to flat back and re-clear with 1-2 coats, known as a flow coat.

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