A
AVB99
Guest
HelloHave just finished priming and, being a person who is on a fast learning curve, again am wondering if I should sand the primed surface. Is there any benefit please? A naive question, I know!
T
tecdes
Guest
Depends on circumstances Aidan.
If your primer has a slight orange peel effect then wet & dry carefully until flat. Use fine grit paper I finish if it is necessary with an 1800 grit.
If the primer is smooth (I use Vallejo primer) I have been spraying the top coats directly on. If I have a few spots I will go over it with wet & dry 1800 grit. I always use wet & dry with water as you get a smoother base.
Laurie
If your primer has a slight orange peel effect then wet & dry carefully until flat. Use fine grit paper I finish if it is necessary with an 1800 grit.
If the primer is smooth (I use Vallejo primer) I have been spraying the top coats directly on. If I have a few spots I will go over it with wet & dry 1800 grit. I always use wet & dry with water as you get a smoother base.
Laurie
A
AVB99
Guest
Interestingly on the cuurent model I have just strtaed using Vallejo primer and there is a discernible roughness on the surface. It's not too bad but it's there.
Aidan
Aidan
C
Cooperman69
Guest
I did a bit of a test last week with a few different types of rattle can products......
" As a test I today bought 2 rattle cans of Tamiya Primer, 1 Standard grey and 1 Fine grey, to go along with my Halfords Plastic Grey Primer.
I sprayed 3 different pieces of black plasticard to see the difference between the primers.
What I found was the Halfords primer was a slightly darker grey, went on quite heavy as I covered the area in 3 passes, and dried to a nice very fine textured sheen.
The Tamiya standard primer went on very similar to the halfords brand but has a lighter shade and a slightly smoother finish.
The Tamiya Fine primer was a little more opaque so required a few more passes to cover the area, I'd say from that you have a little more control on the amount of paint your applying. It dried the same as the other Tamiya primer and gives a really smooth texture free finish.
When it comes to strength, I let all 3 air dry for 2-3 hours and attempted enthusiastically to scratch the top surface with my nail. I couldn't get any of them to budge, really adhered well.
Atb, Colin."
Overall if your looking for a smooth finish I found the Tamiya Fine Primer was really smooth but probably would require 2 coats.
Cheers Colin.
" As a test I today bought 2 rattle cans of Tamiya Primer, 1 Standard grey and 1 Fine grey, to go along with my Halfords Plastic Grey Primer.
I sprayed 3 different pieces of black plasticard to see the difference between the primers.
What I found was the Halfords primer was a slightly darker grey, went on quite heavy as I covered the area in 3 passes, and dried to a nice very fine textured sheen.
The Tamiya standard primer went on very similar to the halfords brand but has a lighter shade and a slightly smoother finish.
The Tamiya Fine primer was a little more opaque so required a few more passes to cover the area, I'd say from that you have a little more control on the amount of paint your applying. It dried the same as the other Tamiya primer and gives a really smooth texture free finish.
When it comes to strength, I let all 3 air dry for 2-3 hours and attempted enthusiastically to scratch the top surface with my nail. I couldn't get any of them to budge, really adhered well.
Atb, Colin."
Overall if your looking for a smooth finish I found the Tamiya Fine Primer was really smooth but probably would require 2 coats.
Cheers Colin.
T
tecdes
Guest
It may be an idea Aidan to try & thin with Vallejo thinners or experiment with different air pressures. Mostly I have found the Vallejo is smooth as smooth.\ said:
Laurie
A
AVB99
Guest
Thanks for all of the input gentlemen. Air pressure may be the secret. I shall try that before thinning. I understood the Vallejo to be air-brush ready but will certainly try the thinning.
Aidan
Aidan
T
tecdes
Guest
Yes it is Aidan but it is a matter of preference results & your airbrush.\ said:
I started straight from the bottle, painting that is, but now find I get better results with a drop of thinners (not water) to every four drops of paint. Best to experiment. Found it went on better & with a .2 nozzle/needle the airbrush liked it.
Laurie