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Old 09-22-2007, 09:40 AM   #1
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exceptions to priming?


Are there any legit ones?


I'm about to paint a very small section of vinyl siding to match my stucco. The siding is light tan, I'm making it a different shade of light tan. I have white primer on hand, just don't wanna waste time / primer if I don't have to.

I'm thinking of all the reasons primer is used, stain blocking/sealing, base coat for color hiding, etc, and none seem to apply to a slight color change on vinyl siding...

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Old 09-22-2007, 05:35 PM   #2
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exceptions to priming?


Primer is also used to enhance adhesion of the topcoat of paint, which does apply to a never-painted, hard-to-adhere surface like vinyl siding.

You should ask at the paint store what they recommend to go with your particular coating.

In any case, most primers are cheap and dry quickly (more quickly than a topcoat), so it certainly won't hurt.

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Old 09-23-2007, 10:16 AM   #3
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exceptions to priming?


Coolness, I've got primer on hand that should be really good for this (some gripper kind), I just didn't know if it was pointless to prime a tan surface for tan paint! Will prime though!
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Old 09-23-2007, 11:08 AM   #4
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exceptions to priming?


I don't paint a lot of vinyl
But for the most part a primer isn't used
Umulsa-band could be added to the paint, and some paints (Duration) claim to be vinyl friendly

Again, it's not my thing so I wouldn't bet the farm on it
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Old 09-23-2007, 11:56 AM   #5
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exceptions to priming?


Like slickshift says, it isn't really needed. you can generally go right over vinyl with a 100% acrylic paint, especially paints like Duration or Accolade since they are considered self priming much like a DTM. However a good acrylic primer like 1-2-3 or the Gripper you have won't hurt. It may help since it is designed for adhesion. If your paint isn't top notch and you already have the primer I'd use it just to be safe.
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Old 09-23-2007, 01:59 PM   #6
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exceptions to priming?


coolness! thanks guys

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