Vince Pitelka on wed 8 jan 03
Dear Everyone -
I am gathering information about HVLP (high volume low pressure) sprayers,
and I would greatly appreciate an opinion from anyone using HVLP spraying
equipment in their clays studio. I have used a few of them, but I need more
definitive information, and your experience and opinions will be very
valuable to me. I want to know about every kind of HVLP gun and system,
from the cheapest Harbor Freight knockoffs to the most expensive systems.
Let's not clutter up Clayart with this. Please send me your opinions at
vpitelka@dtccom.net. I'll post a summary of the information I get.
Thanks in advance for any information you can give me -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://iweb.tntech.edu/wpitelka/
george koller on thu 9 jan 03
>
> I am gathering information about HVLP .....
Hello Vince,
This is a great idea and, I think, a great service! Put me down as a
user and "fan" of the Central Pneumatic "Complete Spray Gun Kit",
Lot No 44677 available from Harbor Freight (69.99). No connection.
Evaluating these guns will not be very easy. Below I started a
list of some of the things that you might want to consider.
1. Maybe test with 3 or 4 different particle sizes of meaning
for glazes? Nozzle size will mean something here but I'm not
sure if it is the only factor.
2. Replacement cost for wear Items such as the Nozzle, the tapered
pin, and gaskets OR a complete 2nd gun system (about $17 for
this unit as I remember)
3. Useful viscosity range
4. Maximum dispensing rate... maybe how much water used in 2
minutes of full open time? (Easy to perform, should indicate how
quickly a glaze can be applied? For tiles I like higher flow rates.)
5. How Can the spray be controlled?
Volume
Spray Patterns
Focus
6. How easy is it to clean, does it need to be taken apart.
7. Material used for that critical tapered pin. Stainless/ brass?
8. Retail level support
An important consideration for using spray guns with an abrasive
material like glaze will be the ongoing wear item replacement costs.
This was as eye opener for me. I think you will find that the replacement
needle for some units will cost 3 times and more than the ENTIRE
gun unit for a kit such as the above. For me this was an opportunity
to keep 2 guns in use (one for light, and one for dark) and also save
money. Having an entire 2nd unit on hand seems like a superior
working alternative to trying to stock all the possible wear/break
items.
Best,
George Koller
Sturgeon Bay, WI - Door County
Where I got "caught" today at the Michigan Street bridge by a freighter
coming in off the Bay. And loved every precious minute of it.
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