Weld on #4

Discussion in 'I made this!' started by lukeoslavia, Sep 13, 2013.

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  1. lukeoslavia

    lukeoslavia Flamingo Tongue

    Joined:
    Aug 4, 2013
    Messages:
    117
    Hello all!
    I just picked up some weld on #4 for my new sump build (going full acrylic this time!). It says on the bottle it is 80% strength after 24-36 hours. Is that the full cure time?

    I am wondering, after I apply the weld on, how long should I wait until I put in some water to start leak testing.

    Any help, as always, is much appreciated.
     
    lukeoslavia, Sep 13, 2013
    lukeoslavia, Sep 13, 2013
    #1
    1 person likes this.

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  2. BioReef

    BioReef Astrea Snail

    Joined:
    Aug 30, 2012
    Messages:
    56
    Location:
    Bartlett ,IL
    3to4 days. You Can mix #4(70%)and#16(30%).
    You can use this mixture for the second time to apply an acrylic. This technique Will Fix any problems and leaks.:)
     
    BioReef, Sep 15, 2013
    BioReef, Sep 15, 2013
    #2
  3. Turbo's Aquatics

    Turbo's Aquatics 3reef Sponsor

    Joined:
    Aug 4, 2011
    Messages:
    121
    Location:
    West Des Moines, IA
    I always wait at least a few days before water testing any acrylic joints, but time increases with material thickness. For 3/8" I wait a week, but I'm conservative.

    Are you using the pins method for joints? What thickness material? Got a design?
     
    Turbo's Aquatics, Sep 15, 2013
    Turbo's Aquatics, Sep 15, 2013
    #3