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    iqbalahmed's Avatar
    iqbalahmed Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 16, 2010, 07:32 AM
    Chilled water piping painting
    Before insulating the ch.water piping ,(in high rise building) it is painted red oxide paint. Is it advised to paint this red oxide painted piping to paint black before insulating?
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Jan 16, 2010, 07:40 AM

    Is it advised to paint this red oxide painted piping to paint black before insulating?
    What reason would there be in painting a pipe black before insulating it? Just curious, Tom
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #3

    Jan 16, 2010, 08:33 AM
    The pipe will need a condensation preventive coating before insulating unless the insulation is impervious to condensation. Wet insulation is like no insulation at all.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #4

    Jan 16, 2010, 10:51 AM
    What is the painting supposed to be fore? What does it accomplish
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #5

    Jan 16, 2010, 12:14 PM
    Red oxide is a rust prevention coating or paint grip paint as we called it.
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