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Pot life pre cat lauqer

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Forum topic by langski93 posted 07-09-2017 04:37 PM 309 views 0 times favorited 6 replies Add to Favorites Watch
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langski93

109 posts in 3272 days


07-09-2017 04:37 PM

I have a HVLP spray gun and need to give multiple coats to a guitar body I’m building. If l load the gun how long can I keep remaining material in the unit between coats before I have to empty, clean and start fresh? Thanks for insight.
Langski

-- Langski, New Hampshire


6 replies so far

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AlaskaGuy

3661 posts in 2148 days


#1 posted 07-09-2017 04:44 PM

Doesn’t the manufacturer of the product put the pot life on the can?

-- Alaskan's for Global warming!

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Rich

1984 posts in 428 days


#2 posted 07-09-2017 05:14 PM

Lacquer will be fine for several days in the sprayer at room temperature. If it’s a satin sheen, give it a few swirls each time you use it to get the solids back in suspension.

-- No matter how much you push the envelope, it'll still be stationery.

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jbay

1857 posts in 738 days


#3 posted 07-09-2017 05:19 PM

Normal “Shelf Life” of pre-cats are 3 months. (I’ve gone longer)

I use pressure pots and leave the lacquer in them all the time until it’s time to refill.
But, they are air tight.

Even if your gun isn’t air tight, (breather hole?)
In my Opinion, I would feel safe to say you should be able to keep it in the cup for at least a week.
YMMV

(I can’t think of any time I have seen my lacquer skim up or gel)
One thing is to keep it stirred or all of the solids will settle to the bottom.

-- If anyone would like to see my Portfolio, PM me and I would be glad to send you the link.

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AlaskaGuy

3661 posts in 2148 days


#4 posted 07-09-2017 05:27 PM

I don’t know if this is really works or not but when I spray and leave the gun full over night I submerge the whole gun under water in a 5 gallon bucket. Thinking that will isolate the gun from air getting were it shouldn’t. I don’t know if that really help but it can’t hurt.

-- Alaskan's for Global warming!

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Rich

1984 posts in 428 days


#5 posted 07-09-2017 06:33 PM



I don t know if this is really works or not but when I spray and leave the gun full over night I submerge the whole gun under water in a 5 gallon bucket. Thinking that will isolate the gun from air getting were it shouldn t. I don t know if that really help but it can t hurt.

- AlaskaGuy

It can if the gun’s container leaks. :)

-- No matter how much you push the envelope, it'll still be stationery.

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AlaskaGuy

3661 posts in 2148 days


#6 posted 07-09-2017 09:17 PM

I don t know if this is really works or not but when I spray and leave the gun full over night I submerge the whole gun under water in a 5 gallon bucket. Thinking that will isolate the gun from air getting were it shouldn t. I don t know if that really help but it can t hurt.

- AlaskaGuy

It can if the gun s container leaks. :)

- RichTaylor

You leave the gun connected to the air. You’ll immediately of you have any leaks. But I use a conversion gun.

-- Alaskan's for Global warming!

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