Does anyone know if I am changing the paint in a dark green room to a copper color if it needs a regular primer or a grey tinted one? I thought w/ one dark color to another somewhat dark color that a regular primer would do just fine but the guy at Lowe’s insited I needed a grey tint . Thanks.
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I don't really know about tinting--I have found that tinting primer gray that was going to be top coated with red worked well--but Lowe's has a product called "High Hiding" primer that has titanium dioxide (or is it oxide?) in it works very well as primer over a color you want to top coat with somehing completely different. I seem never to remember the brand name of this paint, but it is called "high hiding primer." I have used it over hot pink and over dark green and it worked great.
It has los of pigment. Many primers are made with more concern about it bonding to what it covers and providing a good bond with the top coat, than with concern for covering ability (opacity). I can explain this to people and then they ignore me and buy regular Benjamin-Moore primer or something like it and it covers about like skim milk would cover and they end up putting two or three coats of primer and wonder why it isn't working.
I heartily recommend "High Hiding Primer," for what it (my recommendation) is worth.
Thanks for the tip. I'll ck it out.
Titanium dioxide is simply white pigment - the best kind, but just pigment.
The idea of using grey makes sense to me.
Jeff
I don't know--when I painted red over white, the red did not want to cover the white and I ended up with streaks and pinkish spots. When I painted red over grey, the red looked red--no show through of white (or grey, for that matter). But I don't know about copper color over green--may make the copper look oxidized (to paint directly over green), and it may look streaky over white primer. I guess it wouldn't hurt to have it tinted. I just don't think it's necessary in this case. If it were under red, yes.
I do know that before I painted the hot pink wall with the primer, as I came into the hallway, I always thought I'd left a light on in that room because of the pinkish glow coming out of it. The next day, after priming it with one coat of "high hiding" (was it Glidden, maybe?) that glow was gone, and for a minute I thought I was entering the room that had been painted blue and I had primed with regular primer--there was actually a slightly blue cast. The guy at Lowe's may have been shining me on, but he said the "high hide" had something like 3 pounds of titanium dioxide, whereas other primers if they had any had only as much as 2 pounds (or something like that). It seemed like one heck of a lot of pigment and it impressed me enough to buy it.
If there is any question about bonding with old paint, I guess I would first prime with "regular" primer, let that dry, then go over it with the high hiding primer before top coating. Probably still need two coats of the top coat just because, but that's mainly because I'm a perfectionist. Sometimes the cut-in areas aren't perfect with one coat.
i'd be using some tint, either grey or light green
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I usually do sort of like what Piffin said, tint the primer to 75% or so of the final color. This has always worked for me, and is usually free.
Appreciate all the paint tinting opinions. I was getting conflicting advice from the paint and home inprovement stores.
Home depot or Lowes paint sellers can give you lots of general or established ideas but usually fail when you present them with specific and unusual circumstances. Tinting the primer to closest match with finish color is best idea although you should not dilute the primer too much, and use thickest nap roller that you want (thicker nap is less even surface) for finish and then be ready to paint second coat.
Maybe brown tint may give you match for copper? Hope this helps.