Help with high-voltage insulators.

Discussion in 'The Projects Forum' started by rc10mike, Sep 21, 2014.

  1. rc10mike

    Thread Starter New Member

    Jul 17, 2014
    First a little background on the project:

    I recently got a brand new Sears bug zapper. Its a model from the late 70s or early 80s. It worked great for a few weeks then one night it wasnt zapping. Upon inspection of the unit after removing power, I found one of the 4 plastic grid insulators was burned. These little plastic insulators are what hold the entire HV grid in place. Unfortunately, Sears no longer sells the insulators as shown here # 33

    So, my new zapper is dead because of one simple piece of plastic. I want to make some new ones. Would HDPE work in this application?
  2. #12


    Nov 30, 2010
    Probably. What do you have to lose? 15 minutes of carving a spacer?

    Most plastics will work. Any spacer can be ruined by a carbon track running along it. These things are common enough if a bug lands on a spacer. It's not a big deal.
    Last edited: Sep 21, 2014
  3. alfacliff

    Well-Known Member

    Dec 13, 2013
    hot glue works also. just use the hot glue gun to make a blob to replace the broken insulator.
  4. tom_s


    Jun 27, 2014
    got a broken toaster lying around? the wafer that holds the element would be a good insulator, designed for heat.

    edit: drill required holes in it to depth you need and easy to cut with scissors.