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Old 10-11-2010, 11:29 AM   #1
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Best Primer For Aluminum Siding?


Hey, I've been hearing and receiving conflicting information in regard to using an oil based or water based primer for re-painting my aluminum siding. Some say use an oil based primer because water based has ammonia which will react with the aluminum and creat bubbles. others say in the past that was true but now the amount of ammonia in water based paints is so low that bubbling is not a factor. I'm confused and frustrated because I want to do it right the first time, you know? Any advice, suggestions on what type of primer.

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Old 10-11-2010, 02:06 PM   #2
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Best Primer For Aluminum Siding?


Aluminum siding only needs to be primed if you have bare aluminum. I would use a water base DTM bonding primer on any bare spots. I would use water base because unlike oil base it won't become brittle and crack down the road, it will expand and contract with the siding, and it can also withstand heat better than oil base. The important thing is to clean the aluminum well removing any chalky, oxidized aluminum. TSP works well for cleaning, but rinse well. We have always had great success painting aluminum siding using Sherwin Williams DTM bonding primer on any b are aluminum and then applying two coats of a 100% acrylic latex, our choice of paints for aluminum is Sherwin Williams Super Paint.

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Old 10-11-2010, 02:56 PM   #3
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Best Primer For Aluminum Siding?


Thanks for the info. I really appreciate it!!
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Old 01-19-2011, 11:04 AM   #4
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Best Primer For Aluminum Siding?


I also had a few questions on this topic; thank you for answering some of them off the bat!

I'm planning to paint my house this summer, which is covered head-to-toe in aluminum siding. It's pretty old and starting to discolor in places, but is in good shape with no dings/holes/etc.

My chief complaint is every time it rains, water lingers on the clapboards, looks lousy, and takes a long time to dry out. (Pictured.)



So, a few quick questions:
-Will a fresh coat of paint help seal the surface and bead up water?

-Even with the baked-on color, is priming first a prudent thing to do? If so, is Latex-based primer ok, or should I definitely use water?

-I don't have a Sherwin Williams anywhere in my area, but I live near a Benjamin Moore store and Home Depot. What types of paint or primer from these stores would you recommend?
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Old 01-19-2011, 11:37 AM   #5
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Best Primer For Aluminum Siding?


Primining the aluminum siding is not necessary unless you have bare spots of aluminum. The most important thing is to clean the surface properly getting any chalk and dirt off of the surface. I prefer to use a pressure washer, tsp, and a nylon scrub brush for this. after you will want to use a water base primer for any raw aluminum and a quality 100% acrylic latex paint, apply two coats. Do not use an oil base, as an oil base can not take the heat as well as a water base and also does not have elastic properties to expand and contract with the siding. We prefer Sherwin Williams DTM bonding primer and Sherwin Williams SuperPaint.
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Old 01-19-2011, 03:07 PM   #6
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Best Primer For Aluminum Siding?


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Originally Posted by housepaintingny View Post
Primining the aluminum siding is not necessary unless you have bare spots of aluminum. The most important thing is to clean the surface properly getting any chalk and dirt off of the surface. I prefer to use a pressure washer, tsp, and a nylon scrub brush for this. after you will want to use a water base primer for any raw aluminum and a quality 100% acrylic latex paint, apply two coats. Do not use an oil base, as an oil base can not take the heat as well as a water base and also does not have elastic properties to expand and contract with the siding. We prefer Sherwin Williams DTM bonding primer and Sherwin Williams SuperPaint.
Only thing I will add is to use Emulsabond in your first coat of paint.
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Old 01-19-2011, 04:36 PM   #7
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Best Primer For Aluminum Siding?


Quote:
Originally Posted by housepaintingny View Post
Primining the aluminum siding is not necessary unless you have bare spots of aluminum. The most important thing is to clean the surface properly getting any chalk and dirt off of the surface. I prefer to use a pressure washer, tsp, and a nylon scrub brush for this. after you will want to use a water base primer for any raw aluminum and a quality 100% acrylic latex paint, apply two coats. Do not use an oil base, as an oil base can not take the heat as well as a water base and also does not have elastic properties to expand and contract with the siding. We prefer Sherwin Williams DTM bonding primer and Sherwin Williams SuperPaint.
^^^^^This is great advice! I have painted aluminum siding for 30 years & it always comes out great with Housepaintingny's advice. I have had great success using SW's Superpaint Satin. As for that watery discoloration, I think two coats of paint may help it bead up more rather than lay on the siding. A lighter color may also keep it from showing up so prominently.
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Old 01-19-2011, 05:49 PM   #8
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Best Primer For Aluminum Siding?


Thank for you the additional info

What about the item regarding water beading? Can I expect any improvement with a fresh coat of paint?
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Old 01-19-2011, 07:17 PM   #9
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Best Primer For Aluminum Siding?


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^^^^^This is great advice! I have painted aluminum siding for 30 years & it always comes out great with Housepaintingny's advice. I have had great success using SW's Superpaint Satin. As for that watery discoloration, I think two coats of paint may help it bead up more rather than lay on the siding. A lighter color may also keep it from showing up so prominently.
Thanks, that is how we always paint aluminum siding and other things that are aluminum. I've never had a problem using that method and using SW Superpaint. I would use a satin finish too and probably a lighter color
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Old 01-19-2011, 08:54 PM   #10
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Best Primer For Aluminum Siding?


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Originally Posted by RedHelix View Post
I also had a few questions on this topic; thank you for answering some of them off the bat!

I'm planning to paint my house this summer, which is covered head-to-toe in aluminum siding. It's pretty old and starting to discolor in places, but is in good shape with no dings/holes/etc.

My chief complaint is every time it rains, water lingers on the clapboards, looks lousy, and takes a long time to dry out. (Pictured.)



So, a few quick questions:
-Will a fresh coat of paint help seal the surface and bead up water?

-Even with the baked-on color, is priming first a prudent thing to do? If so, is Latex-based primer ok, or should I definitely use water?


-I don't have a Sherwin -I don't have a Sherwin Williams anywhere in my area, but I live near a Benjamin Moore store and Home Depot. What types of paint or primer from these stores would you recommend?

California Paint Exterior Satin will fix that right up
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Old 07-26-2011, 08:58 PM   #11
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Best Primer For Aluminum Siding?


Can i use "kilz" to paint aluminum siding? Will that work?
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Old 07-27-2011, 11:17 AM   #12
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Best Primer For Aluminum Siding?


Kilz is an INTERIOR product as far as I know and shouldn't be used on exteriors.
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Old 07-27-2011, 06:56 PM   #13
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Best Primer For Aluminum Siding?


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Can i use "kilz" to paint aluminum siding? Will that work?
Do not use kilz. Do you have any bare aluminum or paint talking.
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Old 07-28-2011, 05:25 AM   #14
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Best Primer For Aluminum Siding?


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Do not use kilz. Do you have any bare aluminum or paint talking.
Mike, does, uhm, does your paint talk to you?
Mine does too sometimes, I'm so glad it's not just me.
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Old 07-28-2011, 09:53 AM   #15
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Best Primer For Aluminum Siding?


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Mike, does, uhm, does your paint talk to you?
Mine does too sometimes, I'm so glad it's not just me.
stupid auto correct i have had some long conversations with paints and sprayers before. i think that the moderators would delete them if i posted them here.

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