Here is a link to the small spot pots for suction type guns,
http://www.spraygunsdirect.co.uk/product.php?tid=181&products_id=6202
http://www.spraygunsdirect.co.uk/product.php?tid=181&products_id=6202
- Thread starter jamesmacc
- Start date
richie00boy
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Induction time, leave to stand for it to get going.
I prefer the 3m PPS system. Especially as there are sellers on ebay who will sell less than the 50 pack of liners, which was always the off putting factor.
Once you used it you'll never go back. Apart from small patches/jobs, I always use them.
The gun adaptors used to be free from 3m PPS stockists, but don't know if they still are.
ajlelectronics
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Got my Star S770 out in the end. 2.0 tip, pressure just about 55 psi with trigger depressed (compressor regulator gauge). Ambient temp about 26C. Spraying distance about six inches with reasonable fan width.
I remembered the induction time and made up half a litre, but went to 20% on the thinners. Seemed to spray OK and it has been left a few days. It is a nice durable finish, the paint in the mixing cup didn't crack or lose adhesion when crushed.
I have found that it seems to have gone on a bit dry. The surface is a little rough and needs 120 grit to level it. What could be causing that? I am flatting it and will do another coat, so would like it to be flatter. If it were cellulose, I would use more thinner or do slower passes, but the latter just gives excessive build, looking like waves on water once dry.
I remembered the induction time and made up half a litre, but went to 20% on the thinners. Seemed to spray OK and it has been left a few days. It is a nice durable finish, the paint in the mixing cup didn't crack or lose adhesion when crushed.
I have found that it seems to have gone on a bit dry. The surface is a little rough and needs 120 grit to level it. What could be causing that? I am flatting it and will do another coat, so would like it to be flatter. If it were cellulose, I would use more thinner or do slower passes, but the latter just gives excessive build, looking like waves on water once dry.
langy
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Only my opinion but you wouldn't be having these problems with Lechlar Epoxy, it goes on real smooth at 40psi and only needs 10% thinner, also 6" is a little close.
richie00boy
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You could easily be loosing 10 psi from the compressor regulator reading, you need a gauge at the gun really. Probably needs more pressure as it's a conventional gun. 2.0 tip is probably a bit big for that coating as well.
I reckon a better gun and a bit more thinners would have you getting a good result.
I reckon a better gun and a bit more thinners would have you getting a good result.
ajlelectronics
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Yes, point taken about the pressure. Spec for the gun is 50 to 65 psi. I went for the tip because it is quite a thick high build paint, but I do have a smaller one I could try for the next coat.
Having little experience with epoxies, I didn't want to put too much thinner in. Is it permitted to thin with gay abandon, or will I destroy the properties of the paint?
As for the Lechler Langy, I will look at that for next purchase, but for now I would like to use the 4l I have left. Any help is appreciated.
Having little experience with epoxies, I didn't want to put too much thinner in. Is it permitted to thin with gay abandon, or will I destroy the properties of the paint?
As for the Lechler Langy, I will look at that for next purchase, but for now I would like to use the 4l I have left. Any help is appreciated.
richie00boy
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If the tip is smaller than 1.6mm it will be too small. Maybe playing with the controls will help, maybe turn up the fluid control a bit, move a bit faster and further away.
keithski122
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I've been using a cheap gun with a 1.5 tip at about 40/50 psi for the lechler epoxy I'm using.
langy
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I've never used Jotun but yesterday I popped into my mates and he was applying some under a car so he said to have a go with it, I layed a couple of coats on with a 1.8 setup,
In my opinion its nowhere near as good as Lechlar epoxy, doesn't flow out without lots of thinner, I guess its fine for slapping on the bottom of a boat but no good for car work in my opinion.
ajlelectronics
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So how far can I thin it?
