differnece between HVLP and Non-HVLP
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Hello everyone, ive been doing my research on some guns, mostly iwatas. and i came across a supernova, now i noticed that they over HVLP and Non-HVLP, can someone please tell me the difference? :unsure:
[quote=”93foxcoupe” post=15463]Hello everyone, ive been doing my research on some guns, mostly iwatas. and i came across a supernova, now i noticed that they over HVLP and Non-HVLP, can someone please tell me the difference? :unsure:[/quote]
the hvlps take lotsa air with those big holes in the air cap dont they????think i will go burn anuther tire in the back yard now:lol1 :lol1 :lol1 :lol1 :lol1HVLP means.
High Volume Low Preassure witch helps with less overspray and paint wastage.
Non HVLP is the exact opposite more paint usage and more overspray.. hope this helps. 😉from what I hear from the old guys, the old siphon feed high pressure guns sprayed lacquer way easy, but it took lots more material and poked visible holes in the ozone layer. HVLP is harder to spray, but more environmentally sound and uses less material.
I got an LVLP gun from Iwata. LPH400 is very common, and not HV. It’s slow, but sprays real nice. I thought it would be a nice gun for a beginning painter getting serious.
This all seems to be good info.
However, HVLP is required in many areas since it has better transfer efficiency (i believe at least 65%) than a regular gun. As Macioce said, less overspray and wastage. The problem with HVLP is that because the pressure is low, it can be slow spraying and when spraying clears and S.S. you may have to work a little harder to achieve the desired finish. HVLP is limited to about 10 PSI at the aircap.
Conventional guns need to meet no regulations and can be sprayed at any pressure. Often 45 PSI (at the regulator) and up. The transfer efficiency is often below 30% (so if you spray 1 quart of paint, just over a 1/2 pint will actually make it to the car and be useful).
HVLP has been around for a long time. At some point after HVLP guns came out, paint gun manufacturers introduced a new style of gun to solve the problems of HVLP guns. These guns are usually referred to as compliant guns. These guns offer the same (or better) transfer efficiency required of HVLP but often can be sprayed with a little more pressure (at the regulator) and put out greater volume, thus faster speed. These are very popular guns (such as the SATA RP, Devilbiss Plus etc). Most compliant guns can be used in areas requiring HVLP, so long as the gun can meet certain restrictions (typically the same max 10 PSI at the air cap and equal or greater transfer efficiency).
TO cut a long story short .HV High volume of paint LP low pressure of air.HVLP
when the new national rule takes effect, you better either have a gun with hvlp stamped on it, or a compliant gun (rp)with doctuments stateing that it meets the epa rule.
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