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Old 07-29-2013, 04:57 PM   #1
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HVAC Mastic and Covering with Paint


I plan to apply water based air duct sealant to the seams on the inside of several sheet metal ceiling boxes

Interested to know if anybody has experience painting over air duct sealant with latex paint? The objective is to paint the inside of the ceiling boxes black since they can be seen through the grilles. (coating the outside of the boxes with sealant is not an option).

Since the boxes are made of galvanized sheet metal, I would like to prime with a latex acrylic galvanized metal primer (rustoleum) and then cover with black latex paint (rustoleum).

Thanks is advance for any help and advice.


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Old 07-29-2013, 06:12 PM   #2
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HVAC Mastic and Covering with Paint

That will work fine.


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