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Old 06-01-2008, 08:30 PM   #1
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Repainting glossy exterior


Hi, I am new here. Lots of great information.

I plan on repainting the exterior of a home with existing glossy paint. From what I have read it seems the standard protocol is to sand prior to applying new paint.

Is it necessary to sand the entire surface of the house exterior that is glossy, including all the trim, eaves, etc.? That would seem like a gigantic and laborious undertaking.

Is this the only solution to repainting a glossy surface? Thanks.

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Old 06-02-2008, 05:17 AM   #2
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Repainting glossy exterior


Sanding AND cleaning is the proper way, that's what you pay painters for.

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Old 06-02-2008, 02:42 PM   #3
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Repainting glossy exterior


Thanks chrisn. I have heard other solutions to this dilemma. I was told that perhaps a coat of good oil primer or Zinsser 123 would adhere to the glossy paint (once it had been cleaned and scraped) then it could be top coated with premium 100% acrylic latex. Any opinion on this technique?
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Old 06-02-2008, 07:28 PM   #4
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Repainting glossy exterior


Lets see.Sand entire house.My labor free.Well free to me.One coat of primer entire house =$$$ out of pocket, plus my labor. Seems a easy choice to me.I will pick sanding the entire house.................................

As to the primer then top coat.Primer will be going over oil? or latex?
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Old 06-03-2008, 06:04 AM   #5
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Repainting glossy exterior


Also depends on how much bare wood there is going to be. I use slow dry oil for bare wood priming,followed by 2 coats of 100% acrylic latex.
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Old 06-03-2008, 01:13 PM   #6
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Repainting glossy exterior


Yes, the cost of priming an entire house is not cheap but will it adhere well and allow me to skip the sanding? How much sanding is necessary? Do you have to completely remove all the gloss or just scuff the surface? I will be applying satin latex over satin latex on most of the house. The only exception is the porch floors. They are painted with alkyd floor paint. Thanks.

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Old 06-03-2008, 08:42 PM   #7
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Repainting glossy exterior


Quote:
Originally Posted by crescentpr View Post
...but will it adhere well and allow me to skip the sanding?
Nope
You'd have to sand before priming anyway

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Originally Posted by crescentpr View Post
How much sanding is necessary? Do you have to completely remove all the gloss or just scuff the surface?
Just a light "scuff" sanding of firmly adhering paint is fine
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Old 06-04-2008, 12:44 PM   #8
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Repainting glossy exterior


Thanks; I appreciate your help. I know I'll need sanding sponges for some areas; what would suggest for the larger areas?
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Old 06-04-2008, 06:54 PM   #9
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Repainting glossy exterior


A random orbital sander
Palm sized is fine

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