charlysays
Member
- Messages
- 430
- Location
- UK, Wales
I was pretty happy with the sealey hvlp741 for my first foray into spraying. Can be had for 30 quid. Read the reviews of them and there are lots of more experienced people than me saying they compare favourably to guns 2-3 times the price. Whether they last is another matter but certainly I had no issues.
Personally I would have two totally separate guns, for primer and top coat. 1.3 for top coat, 1.8 for primer.
On gun regulators and filters are a good idea in my opinion too.
3hp will keep it going enough for your arm to ache tbh. As a novice sprayer my arm was killing before the compressor ran out of air. It won't spray a whole car but you could do a quarter to half a car in one hit with it.
If you use a paint like HMG nisocoat 2 you can get 2k performance without needing air fed too which will save you a fortune.
A big thing with most DIY setups is inadequate drying of compressed air and not using a coalescing filter.
I have about 50ft of 1/2" copper pipe in horizontal runs with a drop leg and ball valve at the end of each run then a Clarke 1/2" standard coalescing filter on my DIY setup and I had no issues whatsoever with fish eyes or water in the airlines. I do have 350l of compressed air storage too (two 3hp linked) but I only ever used one pump/motor. Was a great setup for painting my estate car.
Order of set up was;
Compressor
50ft of copper pipe in 3 runs with 3 drop legs
Basic separator
Main regulator (set to about 90psi for spraying)
Coalescing filter
Air line reel
On gun filter
On gun regulator (usually set 35-45psi)
Spray gun
Personally I would have two totally separate guns, for primer and top coat. 1.3 for top coat, 1.8 for primer.
On gun regulators and filters are a good idea in my opinion too.
3hp will keep it going enough for your arm to ache tbh. As a novice sprayer my arm was killing before the compressor ran out of air. It won't spray a whole car but you could do a quarter to half a car in one hit with it.
If you use a paint like HMG nisocoat 2 you can get 2k performance without needing air fed too which will save you a fortune.
A big thing with most DIY setups is inadequate drying of compressed air and not using a coalescing filter.
I have about 50ft of 1/2" copper pipe in horizontal runs with a drop leg and ball valve at the end of each run then a Clarke 1/2" standard coalescing filter on my DIY setup and I had no issues whatsoever with fish eyes or water in the airlines. I do have 350l of compressed air storage too (two 3hp linked) but I only ever used one pump/motor. Was a great setup for painting my estate car.
Order of set up was;
Compressor
50ft of copper pipe in 3 runs with 3 drop legs
Basic separator
Main regulator (set to about 90psi for spraying)
Coalescing filter
Air line reel
On gun filter
On gun regulator (usually set 35-45psi)
Spray gun
