12 replies to this topic

[grahama]

Hi all,

if I can get my compressor up and running I am going to spray the mini on the drive, under a tent !! I will be using a thinned rustoleum as it is what I have got already !!

What nozzle size do I need for spraying, I see there are lots, 1.2mm 1.4mm. What difference do the sizes make to the spray job??

Thanks,

Graham

[PaulColeman]

Can't speak for Rustoleum but for 2 pack high build I use a 1.7mm tip and for 2 pack colour I use a 1.4mm tip.

Obviously the thicker the paint the larger the tip. I have a 2.0mm tip which I bought for spraying polyester high build and even that isn't big enough.

Paul.

Edited by PaulColeman, 26 April 2012 - 12:36 PM.

[dazzler-pws]

I was always lead to believe that the nozzle size was related to the amount of air flow your compressor could supply (to a point). And also like said above the thickness of some paint types.

[grahama]

Thanks fellas,

can you get guns with changeable tips or are they a fixed item on the guns??

Graham

[stevede]

Hi Graham

I bought a Sealy gun from http://www.justoffba...-Up-Sealey-S701 (superb service) as it was recommended in a practical classics magazine as best budget buy.

Came with a 1.8 and I bought a 1.5 set for the final (thinner) coats using celly.

The 1.5 was a kit with nozzle, air fan and I think maybe a needle as well. Spare kit was about a tenner if I recall correctly

Hope this helps

Steve

[PaulColeman]

I have a Sealey gravity feed gun which has changeable tips. It was about £40 and I've been really pleased with it. My 150L 3Hp compressor will run it for almost a full cup full of paint before it kicks in.


Paul.

[grahama]

That's the decision made then, sealy gun, and a 1.5mm nozzle too !!

You were correct Steve, £11.50 for the extra nozzle !!

Thanks fellas !!

Graham

Edited by grahama, 26 April 2012 - 08:12 PM.

[Neildanks]

The comressor needs to have a water trap in line with your gun last thing you want his water droplets in yor paintwork

[Surfbluegarage]

i have a 1.8 which is my primer gun and an iwata 1.3 nozzle for my top coats and laquer.have used a 1.0 for some metallic basecoats before which turned out quite nice.

[grahama]

I am getting a small water trap to go on the bottom of the gun, and one on the main line feed for a permanent set up, combined with a pressure regulator. Should keep the moisture at bay !

My schultz gun turned up todat so getting closer !!

On the oiling front, I take it you don't oil a spray gun for the same reasons as water droplets from airline moisture ??

Graham

Edited by grahama, 27 April 2012 - 07:38 PM.

[Shifty]

Hell no to oil!!

That would be a HUGELY bad idea!!

A 1.4 nozzle works well for most top coats and a 1.8 for primer.

Its best to have seperate guns for primer and top coat as the primer is abrasive and can damage the 'good' gun.

[grahama]

Good tip Neil, may get a cheap one for the primer and a better one as above for the top coats

[JonnyBMX]

as shifty said :) i use a £25 "fast mover" 1.8 set up for primers and then a 1.4 decent gun for the rest of the painting :) just make sure u clean em out after use aswell!