pR

05/03/2007 2:52 PM

HVLP sprayer

Has anybody used the Harbor Freight HVLP sprayers? They have one for $49
and another for $99 and they look very similar, in fact the cheaper one
is very nicely made, cast metal gun handle, metal paint cup and metal
pickup siphon tube. I want to spray semi-transparent stain on the cedar
siding of my house. The stain is very thin, but strongly pigmented. Some
years ago I sprayed solid color stain on another wooden house I owned .
The gun was an airless Wagner pulse-type. Spray pattern was small, maybe
3"' across. Hoping one of the HVLP will throw a larger pattern. If
anybody has actually USED one of these, I welcome your email


This topic has 19 replies

Oo

"Oughtsix"

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

05/03/2007 12:25 PM

An HVLP outside? I think you may find that you are painting you
neighbors house at the same time. And your sidewalk... and your
car .. and your ...

pR

in reply to "Oughtsix" on 05/03/2007 12:25 PM

06/03/2007 11:00 AM

The Wagner had a lot of overspray, lucky my neighbors then were old and
could not see what went on their house . . .

t

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

05/03/2007 1:55 PM

On Mar 5, 1:52 pm, [email protected] (RM MS) wrote:
> Has anybody used the Harbor Freight HVLP sprayers? They have one for $49
> and another for $99 and they look very similar, in fact the cheaper one
> is very nicely made, cast metal gun handle, metal paint cup and metal
> pickup siphon tube. I want to spray semi-transparent stain on the cedar
> siding of my house. The stain is very thin, but strongly pigmented. Some
> years ago I sprayed solid color stain on another wooden house I owned .
> The gun was an airless Wagner pulse-type. Spray pattern was small, maybe
> 3"' across. Hoping one of the HVLP will throw a larger pattern. If
> anybody has actually USED one of these, I welcome your email

The $49 is this one, right?

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=43430

I'm spraying fairly thick primer with it (I got the 2.2mm needle and
nozzle set) and it works extremely well. I'm telling you that this gun
is good enough for all but the most experienced painters. That means
that most of us would have a bigger problem with our technique than
with the gun, whether we're painting the Taj Mahal or birdhouses.

The spray pattern can be adjusted up to 5 - 6 inches or more, but with
a gun like this you have to use a sweep pattern that allows for 100
overlap, which means that you aim the center of the spray at the edge
of the stripe just applied. This is the technique that's used with
standard high pressure guns (at least for automotive paint).

I'm beginning to believe that the designation HVLP on these conversion
guns is a real stretch. Real (turbine) HVLP rigs have almost zero
overspray, and this HF gun (and I suspect all other "conversion" guns
that run on compressed air) has enough overspray that it has to be
considered. It's a lot less than the old style guns such as a Binks #7
or the like, but there is definitely going to be some airborn paint.

Here's the information (or opinion) that you really asked for: It will
do a great job of applying the stain. Thin is no problem. BUT...I
would be nervous if my neighbor was using one next door. I might not
try to insist that he stop, but I would keep a very close watch for
any sign of paint/stain landing on my windows, fence, car, brick etc.
For your house, you will definitely need to mask your windows and
trim, even shrubs etc. within 10' of the gun. In short, it would not
be the ideal approach unless overspray is not a concern in your
circumstances. With a true HVLP, you can paint your house with no
masking other than a "shield" that you hold in your off hand and move
along the work to keep the paint off windows and trim etc.

If you decide to proceed, here's a link to some very helpful
information and instructions for setting this gun up from another
user:

http://www.purplesagetradingpost.com/sumner/techinfo/HVLPspraygun.html

Good luck,
Tom

t

in reply to [email protected] on 05/03/2007 1:55 PM

06/03/2007 10:27 AM

On Mar 6, 10:10 am, [email protected] (RM MS) wrote:
> Thank you very much, Tom, for an honest and informed opinion. Yes, I was
> expecting some overspray, no matter what they claimed, and would be
> working with the wind accordingly. The tool you showed was not the exact
> one I saw- the blue one with the cup underneath, a motor unit about like
> size of a coffee can, and 8' of 1"hose.

You're most welcome, but it appears that my "honest and imformed
opinion" was about the wrong tool!! The unit you're looking at is
similar to ones that Rockler, Woodcraft and others carry. These are
clearly quite different from the conversion guns that I was talking
about. I don't know anything about them and it's hard to get any
information from the website, but they DO operate at MUCH lower
pressure, which is very likely to dramatically reduce the overspray.

I'd say it's worth a look, and if you're worried about the quality of
the HF unit, consider the similar item from Rockler. It's more
expensive at $99.

Tom

pR

in reply to [email protected] on 05/03/2007 1:55 PM

06/03/2007 11:10 AM

Thank you very much, Tom, for an honest and informed opinion. Yes, I was
expecting some overspray, no matter what they claimed, and would be
working with the wind accordingly. The tool you showed was not the exact
one I saw- the blue one with the cup underneath, a motor unit about like
size of a coffee can, and 8' of 1"hose.

t

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

05/03/2007 2:38 PM

On Mar 5, 4:05 pm, Ignoramus18212 <ignoramus18...@NOSPAM.
18212.invalid> wrote:
> considering the criticism of this HF gun... Would anyone recommend a
> "very good" HVLP spray gun. Thanks.
>
> i

I think they're all about the same in that price range, and I think
they're fine in terms of the resulting finish. I don't believe they
get much more expensive, but I wouldn't go cheaper. Basically, the
conversion gun is a compromise. I don't think there are "super high
quality" conversion guns because people who want that will just buy a
real HVLP (turbine) rig. As I said in my other response, if overspray
is not an issue, or can be managed, just about any conversion gun is
going to be more than good enough for all but very experienced, i.e.
professional painters.

Devilbiss even has their name on one, at it's about the same price.
Heck, it may be from the same factory!

Oo

"Oughtsix"

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

05/03/2007 3:04 PM

I have one of the Harbor Freight guns and it works great for spraying
laquer and other finishes. It is just not the right tool for the job
for spraying a house. It works great for laquer because it puts out a
very fine atomized mist. In the slightest breeze this mist will be
all over the place and you will end up using a lot more stain than
necessary. An airless sprayer is the right tool for the job but even
an airless sprayer will not bond the paint as well to a house as a
roller or paintbrush. An airless sprayer doesn't break the surface
tension of the underlying paint as well as a roller so even with an
airless sprayer I have heard it is reccomended to "back roll" a house
after it has been sprayed. By "Back rolling" you will get better
adhersion and your paint job will last longer.

pR

in reply to "Oughtsix" on 05/03/2007 3:04 PM

06/03/2007 11:18 AM

I once used an airless on a house with thick opaque stain and it shot
the stain deeply into the wood fber. That paint job turned out very well
and lasted a long time. My main criticism was that the pattern was too
small, about the size of the bottom of a beer can

nn

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

06/03/2007 7:22 AM

Put me down as being pleased with the Fuji Q4. Not only for quality,
but for service after the sale.

I use my Fuji for ALL of my fine finishing, and I use an assortment of
other guns - some conversion, some high pressure, depending on what I
am doing.

As mentioned, there is a curve, not only on the spraying, but on the
coating mix. With HVLP, you mist on the finish, as opposed to (I
still miss the old days, damnit) atomizing your finish into subatomic
sized particles with high pressure.

I never cared at all that a good high pressure gun only got 35%
material delivery on target. I like spraying high pressure because
that is what I learned. There is something wonderful about standing
in a cloud of overspray knowing you are making a great finish.

However, I don't miss taping off everything within 30 feet of my spray
area, and my clients don't mind the fact that I am not fogging their
house and neighborhood with finish. With the gun tune properly, I can
literally spray a door in one bay of a garage and not get anything on
the junk in the other bay. With high pressure, I only sprayed
outside.

Search this group for HVLP and application procedures. There have
been some really good discussions on both.

Robert

BA

B A R R Y

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

06/03/2007 12:01 PM

RM MS wrote:
> If
> anybody has actually USED one of these, I welcome your email

I have extensively used one. I'll gladly answer questions, but we
should do it here for the benefit of Google archives and lurkers.


BA

B A R R Y

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

06/03/2007 12:03 PM

Ignoramus18212 wrote:
> considering the criticism of this HF gun... Would anyone recommend a
> "very good" HVLP spray gun. Thanks.
>

Fuji.

You can now get a 4 stage setup without the Q-series quieting for ~
$675, or a 3 stage for ~ $475.

Ii

Ignoramus18212

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

05/03/2007 6:29 PM

On 5 Mar 2007 14:38:36 -0800, [email protected] <[email protected]> wrote:
> On Mar 5, 4:05 pm, Ignoramus18212 <ignoramus18...@NOSPAM.
> 18212.invalid> wrote:
>> considering the criticism of this HF gun... Would anyone recommend a
>> "very good" HVLP spray gun. Thanks.
>>
>> i
>
> I think they're all about the same in that price range, and I think
> they're fine in terms of the resulting finish. I don't believe they
> get much more expensive, but I wouldn't go cheaper. Basically, the
> conversion gun is a compromise. I don't think there are "super high
> quality" conversion guns because people who want that will just buy a
> real HVLP (turbine) rig. As I said in my other response, if overspray
> is not an issue, or can be managed, just about any conversion gun is
> going to be more than good enough for all but very experienced, i.e.
> professional painters.
>
> Devilbiss even has their name on one, at it's about the same price.
> Heck, it may be from the same factory!
>

Maybe I did not ask the right question then... What I would like to
know is whether you can give me an example of a very well made real
HVLP gun. Thanks a lot.

i

PB

Pat Barber

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

06/03/2007 3:59 PM

http://www.turbinaire.com/ These units are generally
considered the top of the line at the under $1,000
price point.

Ignoramus18212 wrote:

> Maybe I did not ask the right question then... What I would like to
> know is whether you can give me an example of a very well made real
> HVLP gun. Thanks a lot.
>
> i

BA

B A R R Y

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

06/03/2007 4:46 PM

Pat Barber wrote:
> http://www.turbinaire.com/ These units are generally
> considered the top of the line at the under $1,000
> price point.

By who? <G>

BA

B A R R Y

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

06/03/2007 12:02 PM

Oughtsix wrote:
> An HVLP outside? I think you may find that you are painting you
> neighbors house at the same time. And your sidewalk... and your
> car .. and your ...

Have you ever used a properly set up HVLP? <G>

PB

Pat Barber

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

05/03/2007 8:51 PM

A airless sprayer would be much better for that application.
Go to Sherwin Williams or other pro paint stores and ask
some questions. They "might" have rental units.

That Harbor Freight is for bird houses not people houses.

RM MS wrote:

> Has anybody used the Harbor Freight HVLP sprayers? They have one for $49
> and another for $99 and they look very similar, in fact the cheaper one
> is very nicely made, cast metal gun handle, metal paint cup and metal
> pickup siphon tube. I want to spray semi-transparent stain on the cedar
> siding of my house. The stain is very thin, but strongly pigmented. Some
> years ago I sprayed solid color stain on another wooden house I owned .
> The gun was an airless Wagner pulse-type. Spray pattern was small, maybe
> 3"' across. Hoping one of the HVLP will throw a larger pattern. If
> anybody has actually USED one of these, I welcome your email
>

pR

in reply to Pat Barber on 05/03/2007 8:51 PM

06/03/2007 11:02 AM

No, the airless was a toy. As I said, I'd rather like to hear from
somebody who has actually USED one, please

Mi

"Max"

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

06/03/2007 1:14 AM


"Ignoramus18212" wrote
> Maybe I did not ask the right question then... What I would like to
> know is whether you can give me an example of a very well made real
> HVLP gun. Thanks a lot.

I have the Fuji Q4 PRO and am very well pleased with it. There is a
learning curve with it but when you get it down it's marvelous.

Max

Ii

Ignoramus18212

in reply to [email protected] (RM MS) on 05/03/2007 2:52 PM

05/03/2007 4:05 PM

considering the criticism of this HF gun... Would anyone recommend a
"very good" HVLP spray gun. Thanks.

i


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