i have just done 320 on the primer and it looked ok but then tried 600 to smooth it even more which it did but it looks too smooth and shiny even. is this too much for the paint to stick properly to it? is there an optimum grade? is 320 ok before painting (acrylic)
its not a show car i just want the paint to stick.

I always go 400 then 800 before colour.

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1928 Model A CC Pickup

i would use 600 before colour too smooth it might not stick and to rough shrink back will show.
also wet rub it and guide coat.

what paint brand are you using?

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1600s arent the only datsun

wetalic paint (cob) u should always finish of fine around 500 dry or 800 wet and solid colours (dg) u can finish 0f with 320 dry or 600 wet

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If your not first ur last

i am doing a dry sand. maybe thats why it looks polished with the 600? i don't want to wet rub it as im too scared of rust forming.
i think i will stick to a dry 320 and see how the shrinkage goes. i can always then wet rub it back and paint a few more layers if it looks terrible.

i always finish with 400 dry, ive been told 320 works but 400 on the orbital is quick and easy and better safe then sorry

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Its not that i have no money, i just have a huge investment in my datsuns!

ok so i finished with 320 dry as i didnt want to sand any more as it takes ages and is quite boring after the first hour or so.

i painted my car (4 or 5 coats plain acrlic) on tuesday in nice weather (just before massive rain in the evening!) and put a real nice gloss finish on it which i am more than happy with.

in some places if you look in the light reflection very closely you can see some sanding lines very faintly. you have to look hard. mostly there is nothing showing through so i think i got away with it. but probably would recomend going the 400 as jackjack says.

may try and post a photo of close up if i can this weekend.

i just use wet and dry first, then primer then colour and then a clear coat

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tradesafe: Dazda, 2ndTimeStanza, Qeleh, big mac, hatchman


1979 Datsun Sunny Wagon 13b Turbo conversion: http://ozdat.com/forum/viewtopic.php?f=60&t=28890

320 Dry might show sanding marks, i'd go min 400 dry.

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Previous Stanza 80 model: L20B balenced for 9500rpm, big cam, twin 45's 100kW ATW.
Current Stanza 79 model: 1 owner spec http://ozdat.com/forum/viewtopic.php?f=62&t=23236
In progress 82 model: track car rebuild with above motor http://ozdat.com/forum/viewtopic.php?f= ... 40&start=0

I'd listen to Jono83. He helped me with my paint job...

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Ongoing Project: 1972 Datsun 510 S13 SR20Det. http://ozdat.com/forum/viewtopic.php?f=33&t=17898
New Daily: D22 Navara (The new workhorse)
Retired 12/2016: MY98 Subaru Impreza RX
Previous Car: Restored Green 1972 Datsun 510, Hot L18

If he did he wouldnt have lines but as he didnt say the colour he couldnt get a defenant answer but if he wants to get ride of them he could give it a good wet rub with 1500 or2000 wet eand give it a polish and would be sik

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If your not first ur last