On Sunday, August 14, 2016 at 10:34:50 AM UTC-4, dpb wrote:
I wasn't referring to the product description, I was referring to the
application instructions that are on the can. If they require a primer
to put it over oil based product, that's where they would say so.
This isn't an unusual thing, it's fairly common and it would be pretty
dumb for BM to not state it, if it's required, will cause failure, etc.
I would agree with that, but it wasn't me that said that primer is
a must when going over oil based. If it's typical, weathered paint
that is otherwise sound, then you can go over it with latex. If it's
chalky or has other problems, then that is an issue with any kind of
How many paint cans have you seen of solid stain topcoat product
or similar, where in the application instructions they only address
going over bare wood? The vast majority of the product is used
going over previously painted surfaces and again, in the application
instructions BM doesn't have any restriction on using it over existing
oil based paint.
Actually, I've _never_ looked specifically at a can of solid stain
topcoat as never have (and never will) had any use for the product. :)
But, I'll still bet somewhere in the instructions for each and every
topcoat product there's the caveat that covers the issue regarding the
specifics on prep and existing surfaces even if it's in the (maybe very)
I'm certain they didn't put the phrase "most surfaces" in the
description just to clutter up and take up space... :)
The craze of "self-priming" paint is a relatively new phenomenon; it'll
be interesting to see if it actually lasts. It certainly saves time for
the professional which is the driving force; I think it's too early to
tell whether the product in general raises more issues than the
convenience it provides.
$0.02, imo, ymmv, etc., etc., etc., ... ;)
On Sunday, August 14, 2016 at 9:30:48 AM UTC-4, trader_4 wrote:
I was responding to nothing more than these statements:
"...and you only use primer on bare wood"
"You'd use it on new wood or spots that have been scraped/sanded bare"
Sitting way out here on the ole interweb that certainly sounds like you are
discussing the use of primer in general, not related to any specific product.
Taken as written, they are not true.
How else could someone take "and you only use primer on bare wood"?
On Sunday, August 14, 2016 at 11:25:10 AM UTC-4, DerbyDad03 wrote:
Look, I was not addressing every possible painting project, only hers
with the specifics given. She's painting wood siding that has oil
based product on it now. What I said is true for what she is doing.
Conveniently forgetting that you posted this:
Absolutely not true.
"Primer is required when you want to use Latex over Oil"
She's painting wood siding that has oil based product on it now.
Read the instructions for the BM product. IT says nothing about
requiring a primer when using it over existing product. If BM had
the requirement you claimed exists FOR HER PROJECT, then it's very
strange that it's not on the application instructions. Is BM so
stupid they can't tell people how to apply their own product
On Sunday, August 14, 2016 at 12:45:28 PM UTC-4, trader_4 wrote:
No argument, except that there is no way for anyone to know that you were
only addressing her specific situation. As soon as you used the words "No, and"
as in "...and you only use primer on bare wood" you have made what appears to
be a general statement regarding primer, not a statement specific to her
situation. The first part ("No") answered her question; everything after the
comma could easily be taken as a general statement as to when primer is used.
If someone who nothing about painting read those words, the only conclusion
they could come to is exactly what you said: "and you only use primer on
What would you conveniently forget something that is absolutely accurate?
Once again, I'm not talking about her project, I'm talking about the words
you used. If you were addressing her specific project, then it should have
been worded so as not to appear as a general statement regarding the use of
1) Can I use Oil primer alone? Does that primer has color?
No, unless you have bare wood or areas that have been sanded down to bare
wood. Those areas should be primed.
On Sunday, August 14, 2016 at 6:58:06 PM UTC-4, DerbyDad03 wrote:
Are you for real? I made my comment in a reply to Leza's question,
my response came right after each question she specifically asked.
Anyone can see that I was replying to the question she asked about
her specific situation. I clearly was not giving advice to the
whole world, in every painting application, which of course can't
I see, so now whenever I answer a question, I have to frame it for
all possible readers, with all possible painting products, not
answer the one question for the situation stated.
I'm not forgetting what you posted, YOU are. You posted "Primer is
required when you want to use latex over oil. That is BS and worse,
it's the wrong answer to her question of what she wants to do.
If her wood siding is in good shape, has a couple coats of oil based
product on it, she can go over it with BM Arborcoat solid stain.
BM obviously thinks so, they don't say primer is needed in the
I see, you're here posting in a thread about her question and you
just made a blanket statement that primer has to be used when going
from oil to latex, but it's not directed at her? WTF? Do you think
we're all stupid?
If you were addressing her specific project, then it should have
I put my replies right after her specific questions. Any reasonable
person can easily see that I was replying to her and not some guy
painting a steel boat in Botswana.
I responded to her question and got it right. You want to make the
case that I have to address every possible painting situation in my
answer. YOU on the other hand, gave her an answer which is wrong for
her situation and also wrong for most people who have oil based paint
and want to move to latex. Listening to you, she'd be doing 2x the
work. Who should she believe? You or BM?
On Monday, August 15, 2016 at 9:14:38 AM UTC-4, Gary wrote:
Well then to flat out state "primer is required when you want to use
latex over oil" is BS and the wrong answer. And from the description
of the actual situation, the question asked, she's painting
house siding. You see many cases of house siding being painted in
| > You posted "Primer is
| > required when you want to use latex over oil. That is BS...
| Not really -
| If the old oil paint in question has a gloss, then you definitely want
| to sand & prime it before using latex. If it's flat oil (paint or
| stain), no need to prime first.
I wouldn't prime it. Fortunately, most exterior
oil paint will long since have lost its gloss,
anyway. Especially on a fence. I just wash it
with hot water and TSP. Primer is meant to
soak in and provide a base for paint to adhere
to. It's not going to stick better than the finish
paint. And non-oil, quick-dry primers that don't
soak in are even worse, perpetrated by painters
who don't want to wait for coats to dry.
So oil primer for bare spots and maybe for
badly broken up paint that isn't peeling. That
would be true with either latex/acrylic or oil.
Oil finish paint should not go over bare wood.
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