"DerbyDad03" wrote in message
...
On Sep 2, 11:59 am, "trailer" wrote:
Please excuse if this is a repost. The first didn't go thru.

Bought 4 gallons of Home Depot (Behr) latex paint for some room painting.

I used roller and edge tool to paint the first room. It looks great.

However, on the second room, the part where I used the edge tool shows up
lighter that the walls where I used the roller. Different gallons were
used, but mixture was the same.

What would have caused this? The paint is completely dry now.

Thanks.

The wife bought a gallon of paint at Lowes and then went off to a
friend's cottage, leaving me to paint a room - but that's a different
story. ;-)

Anyway, it took about a 2/3 of the gallon to put on the first coat, so
I figured another quart would be enough to put on the second coat. I
took my 1/3 gallon of paint with the formula label on it (key point)
so they could mix the extra quart in to ensure a better match.

Off I went to Lowes and the first thing the paint guy (Glen) asked me
was which Lowes I had bought the paint at. He said that the formula
tag on the lid wasn't marked with the machine it was mixed on, so it
didn't come from his store. (As it happens, my wife had bought it at a
different Lowes.)

When people come to Glen for additional paint, he always mixes it on
the same machine because there can be different results from different
machines. He also mentioned that different base lots and different
colorant lots can also make a difference. So that could explain your
differences in colors. Anyway after 2 misses, Glen got the color
right.

OK, so why were there 2 misses? Listen to this:

It was actually one of Glen's helpers (a rookie) that mixed the paint.
She entered the color name into the computer, grabbed a quart of base
and stuck it under the machine. Just before she poured it into the
gallon I yelled "Stop!" I noticed that my gallon said Satin, her quart
said Flat. Thinking it was a rookie mistake, Glen came over and
checked the formula tag. It said Flat, not Satin. So it seems that the
Lowes my wife went to entered "Flat base" into the computer but
actually colored a Satin base.

So Glen, taking over the project, enters the name of the color into
the computer, tells the computer it's a Satin base and grabs a quart
of Satin. Just before he poured it into the gallon I yelled "Stop!".
I could see from where I was standing that the color was different
from what I had been working with all day. Glen compared the formulae
on the labels and found that the formula for the same color *name* was
different for a Flat base than for a Satin base. He even printed out
the formula tags for each and they were certainly different.

So, it's back to the computer, enter the color name, tell the computer
that it will be a Flat base, but use a Satin base instead. The result
matched what I had in my can.

Here's the last interesting piece of the story. After Glen told the
computer he was going to use a Flat base, but then scanned a can of
Satin, the computer popped up an error window - what he told the
computer (Flat base) didn't match the base he had just scanned. He had
to override the error to continue. He (and I) couldn't understand how
the guy at the other Lowes could have mixed the paint without getting
the error and starting over.

The identical thing happened to me. By the third trip to Lowe's I was
livid. I asked for the store manager and led him to the paint counter. I
explained the situation (of the paint not matching) and demanded resolution.
He asked who did the mixes on each batch and it was the same guy,
fortunately. He paged another gentleman who knew the likely place to look
for the problem and it was just as you said.