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Polyester spray gun options3/30
I'm spraying white polyester with a Iwata W101 gun with a 1.5mm nozzle and a Iwata double diaphragm pump.
I'm looking to improve my finish so i would get less orange peel and became easier to level when sanding.
i have several options:
1) Buying a better gun and keep using this pump? (what gun?)
2) Buy a airless gun to use on a old Wiwa 32:1 pump that i have laying around.
3) Buy another kremlin airmix gun to replace my wagner gm 4700 on my Puma pump and puting the wagner gun on the Wiwa pump to spray polyester?
What would be the better option?
i use a SATA 4000RP 2.5 nozzle
airless gun with a fine finish tip, either a 310 or 412 and you will be pleased.
Great! Thanks guys.
In all honesty i'm not really looking for cup guns being gravity or bottom feed those are not really suited for working 8 hours a day.
I've talked with 2 sellers and both said that airless pumps are dangerous for spraying polyester...they claim explosion risk?! I've used them on the past....no problems.
Is there any thuth to that claim?
if you are spraying that much why don't you go with a mixing system from graco or kremlin.
That would be perfect, but for a new plural component system electronically controlled i was quoted 18K. There are some that do mixing "mechanically" but most of them can't go as low as 5% ratio.
There is a guy around me selling a used kremlin plural component system for an interesting price, but even if i bought it i would rather use it for 2K PUR, because polyester just makes a big fat mess out of everything, that´s why i don´t use my better pumps for it.
Instead of a W101 you should be using an Iwata LPH 101LV with a 1.3 or 1.4 with a double diaphragm. This should give you much better results and remember not to crank the air
just curious . how long is the potlife of the polyester.
Pot life is around 1 hour with my stuff...but that doesn't matter much I spray mostly panel style of work. One of those PPS should be good for around 2 pieces or 5 minutes :)
"Instead of a W101 you should be using an Iwata LPH 101LV with a 1.3 or 1.4 with a double diaphragm. This should give you much better results and remember not to crank the air"
Not really, changing for a low volume low pressure version of the same gun should be a significant downgrade and a complete waste of money.
Actually an LV is an upgrade if you actually know how to use it correctly. Iwata will tell you the same as well. I spray polyester with a 1.5 gravity cup "LV" and lays out like glass. I really think you could drop a couple of sizes on a needle set with a pump to lay down a better finish.
Just bought a used W200 with pressure pot for 100$! No more hobby guns for me...thanks ;)
It really delivers a decent finish on my pigmented polyester, should never got stuck on the gun that was bundled with the pump.