Number one problem call.

Barry

Paint Fanatic
Staff member
Number one problem call on tech line the last three weeks.

My clear is orange peel.
My base is running(not a lot as a lot of shops having mixing systems)
My epoxy is to thick to spray.
My 2k primer will not spray out of my primer gun.

These are all shop calls that have cold products from shutting down the heat or just getting off truck.
If the product says 55 degrees in the can and you put in a 70-degree room depending on the product, it can take up to 48 hours to reach 62 to 65 degrees in the can.

So here is what you need to know.
Depending on the net resin weight of the product for every 10 degrees below 70, viscosity can increase up to about 15%.

Use a laser gun.
 
If 10 degrees below 70 increases viscosity roughly 15%, does 10 above 70 decrease roughly 15%?
I read someone here once heating it to 100F. It was 90+ in the shade when my pops & i did his hood with hf gun & it came out great.
 
Was a record high of 82 today in n. fla, not complaining.:)
I remember as a kid growing up in southwest La. (Cajun country) being taught that temp of applied products was at least as important as the actual air temps. Might not have had one of them there fancy IR guns, but knew to bring paints indoors well ahead of time to use in colder weather.

Now that I have one of them fancy IR guns, it can be down right entertaining to see what things read. While 65 degrees air temps mid yesterday morning, a heavy gauge steel door painted white sitting in direct full sun approx 2 hours read 131 degrees. Good proof to follow Barry's general advice of put something in the sun if possible, even on a cooler day.
And yep, some things like cans of liquid indoors sure do read taking their sweet time to reach warm enough air temps once cold as do interiors of block buildings. Another good reason that overhead infared heating is a positive thing, heating objects rather than air itself such as the concrete floor, which can still be warmer the next day, effectively radiating back into the air and all those cans of liquid in the room.
 
If 10 degrees below 70 increases viscosity roughly 15%, does 10 above 70 decrease roughly 15%?
I read someone here once heating it to 100F. It was 90+ in the shade when my pops & I did his hood with hf gun & it came out great.

Great question, and to be honest, I've never measured heat effect but one time because no one ever bitches about how it sprays.
My only experience is 4100 measured years ago at 87 degrees, and it thinned down about 4 or 5 % going by memory.

If you allow me a month come first of the year, I will do some extensive testing to give you a more proper and correct answer.
 
Sprayed 2 white doors with speed clear yesterday. Got a little more texture than normal, not anymore than OEM, but more than I have been getting. Came home and read Barry's post and it dawned on me what happened. Temperature of vehicle and material was mid to upper 50's. The high solid products really need to be warmer to spray correctly, and thanks to Barry I was reminded.
 
Here's my proposal: we all work really hard from Spring til Fall. Then, we rent a huge house in Cancun for the Winter. And, Barry can come down and give a seminar once a month.
Down here, I dream of going to Alaska in the summer. Winters are generally mild and pleasant, but the summer is brutal:)
 
Labels need temp/viscosity effect added.
Average design working temp, lack of self leveling orange peel below xx temp, object temp,
My brain's not up to speed yet but your think tank can type it up & i say eliminates all those calls.

The clear we sprayed late afternoon after sun set enough to shadow car, hood was probably 100F (cool), universal near 100F, 3 coats flowed out with $20 gun as if 68 sprayed it.
 
Its the indian, not the arrow, lol

At least thats what i tell my kids when it comes to $450 baseball bats! But regardless, there have been many people that have shown great finishes with the HF guns.
 
Labels need temp/viscosity effect added.
Average design working temp, lack of self leveling orange peel below xx temp, object temp,
My brain's not up to speed yet but your think tank can type it up & i say eliminates all those calls.

The clear we sprayed late afternoon after sun set enough to shadow car, hood was probably 100F (cold), universal near 100F, three coats flowed out with $20 gun as if 68 sprayed it.
_------------------------+
Were at around $100,000 in the last four4 months uncluttering the labels, don't need more clutter and not redoing for a while.

I get asked daily on the tech line. Why don't you put this or that in the tech sheet?
Because I made the answer to fit your situation and I could easily make the tech sheet 20 to 30 pages, and no one would read
Them. Remember, we took the 2.1 VOC off the labels because people were mixing the products 2.1 instead of reading directions.
 
I find the tech manual a great help when I start second guessing myself.
To me the mixing is the easy part, it's the application technique that I seem to be constantly working on.
Things are different when the shop is 90+ degrees during the day as opposed to using a heater and trying to maintain 70 degrees.
It also seems that spraying steel is different than spraying aluminum, fiberglass (SMC) or plastic.
 
Ok got it Boss. I'm still droopy eyed cause rain we needed was like summer downpour all night.
I did get the zahn cup months ago when i wanted to compare power steering fluids but it's been wall decoration since.
 
when I have a dumb question I always just shoot Barry a text and i get a response in minutes. I had a tech book that i would write the replies in so the next time,,,,,,but i somehow lost that tech book.
 
or simply heat, "nuke" the clear in the microwave for 30 sec,or whatever time it needs to get to certain temperature, let it get some energy, let those molecules flow easier when it gets cold....
 
i'm confused . if you know your going to shoot paint on a certain cold day why not put the products in a warm place a few days ahead . a 60 watt bulb in my old ice box keeps it at around 65-70 degrees . KISS

Exactly or set product on a heat vent on the floor in the house for overnight or if vent comes out of wall set product next to it.

Microwave scares the hell out of me.
 
Back
Top