Mighty Putty Best Practices

The Handyguys discuss how to use Mighty Putty, answer a listener question and talk about Honey Do Lists.

Mighty PuttyThanks to Mighty Putty for sponsoring this episode. We have all seen Mighty Putty advertise on TV and all around the web. The Handyguys discuss how to properly use Mighty Putty to make sure your repair is successful. Some things to keep in mind:

  • Use gloves if you have sensitive skin
  • For best results, clean and de-grease surfaces, then roughen bond area prior to application.
  • If the putty has nothing to grab to then it may not stick
  • Smaller amounts of putty used and lower temperatures will lengthen hardening and cure times.
  • To mix, knead with fingers to a uniform color (off white) (average mixing time is 2 minutes).
  • On painted surfaces, the bond can only be as strong as the paint bond itself.
  • Once hardening begins, do not handle or reposition.
  • After 30-40 minutes the epoxy will harden.
  • 24 hour full cure for weight bearing applications.

The Handyguys want to hear about your cool uses of Mighty Putty. Feel free to contact us on comment on this post. We may publish your best use and send you some Mighty Putty for your next project. Mighty Putty was also kind enough to send us some research data they commissioned regarding women’s Honey Do Lists. Listen to the podcast to hear about why things tend to stay on The Honey Do List so long and what to do about it.

Lastly – The Handyguys address a listener question regarding sealing vents

Michael Wrote to us –

I have central air in my home in MA. I also have forced hot water baseboard for heating by oil. All the A/C vents are in the ceiling along with the return vent at the top of the stairs. All these vents have a lever that close them but not that tight. I feel I use a lot of heat thru these vents & the return vent I think a lot of heat goes up. Is there a product that they sell or do you have a suggestion to cut down on my heating loss thru these vents?

The easiest way to block this potential route of air escaping is to use a vent cover designed for this exact purpose. We have them in the store. We also discussed some other options. Michaele – Thanks for the question.

Thanks for listening and send in those suggestions for how a handyguy might use Mighty Putty.  We will send some free product to the best idea.

15 thoughts on “Mighty Putty Best Practices

  1. Handyguys,

    I broke a segment of the patio sliding door track, do you think I could form Mighty Putty to make a repair for the missing segment of the track ?

    Love the show, keep up the good work !


  2. Rory – If you have some handy your could certainly give it a try. If it doesn’t work you may just need to replace that part. Good luck, let us know if you try it and it works for you.

  3. We received this tip from listener Alton. Thanks for Listening.

    How I prevented heat loss in my house.
    When preparing the house for winter, I found that the central air’s ceiling vents was allowing heat to escape. I decided to make a vent pan cover with a 1/2 inch thick foam insulation board to seal the air vents. I made a wood mold of the vent for a jig. I then tapered the jig’s sides making them a ½ inch longer to allow a piece of ½ foam board to fit between pan cover and vent. I cut the pattern so it would fit into the molded jig when bending the sides. I used the pattern to mark out the flat galvanized tin blanks. I cut, bent, and tested each one for form fit into the molded jig before soldering to become the finished cover. I drilled a center hole in the ceiling vent to install a brass ¼ x 20 threaded insert. I then marked and drilled a center hole in the vent pan cover to use a ¼ x 2 inch thumb bolt for mounting to the vent. I finished the cover with primer and paint to match the ceiling color. No more heat lost.”

  4. Mighty Putty Question: The plastic has partially come off the tines in the dishwasher. Can I use Mighty Putty to repair the tines? Will it stand up to extremely high water temputature, water pressure, and dishes leaning against it withouy crumbling? If so, no need to replace dishwasher. Thank you

    1. Lucille – I do not know if it would hold up. If i were you I would recoat the tines. There is a product made just for this purpose and its less expensive than Mighty Putty. You can check it out here
      You will see bottles of ‘liquid vinyl’ and ‘caps’. Count how many tines you have and get a set with enough replacement caps and a bottle of the liquid. Use the liquid to re-coat anything that the caps don’t cover. The liquid also adheres the new caps to the old tines.

      Good question.
      The Handyguys

  5. The pipe frome the gas fireplace has a small leak and when it is in use, it has a small flame coming from the hole. Can I use mighty putty or something else to fix it inexpensivly ?

    1. Debi – no, you cant use mighty putty to seal a gas leak. I don’t know where your leak is, i cant tell from your description. Your best bet is to turn off the gass and call someone to repair it. It could be simple but it might also be a huge safety issues.

  6. I used mighty putty to put a side mirror back on my car that I caused to fall off. It held for a long time but fell off last week and disappeared (in traffic, I guess). I have a new mirror to replace it, but alas! the putty is stuck tight to the mirror base! How can I remove it without damaging the mirror base in order to use the adhesive to attach the new mirror?

    Need advise SAP.


  7. I had to have my sewage drain cap replace, and after all said and done it is leaking around the threads and I can see where the shovel has chipped the edge and it is leaking from there. Can I use Mighty Putty to put around the rim to stop the leaking? Will it hold?

  8. Mighty Putty has worked well. Alas, a bit too well. I need to remove a 1/2 inch hardened piece, holding to pieces of plastic hard vinyl together. Is there any type of material that I could use to help soften the hardened Mighty Putty a bit, so that I can scrape it Off?

    1. Nothing chemical as far as I am aware. Maybe heat, I haven’t tried. The problem you have is the hard vinyl is also susceptible to damage by heat. You might need to mechanically remove it (saw, knife, rasp, file, machete or explosives). Good luck

    2. I got a question not a comment.
      I bought on clearance the Mighty Putty right, well its so hard I can not cut it. The green part (outside layer) is like glass. Is there anyway I can soften it back up or anything? I lost my recipt so I can’t return and get a refund. Plzzzzz help me if anyway possible thank you very much.

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