Sep 27, 2012

How to melt plastic bottles

 Reuse prepper style

ok how useful can this really be. Well considering our dumps are filled with an endless supply (even with recycling) It can come in super handy.

Crafter's already do this to make beads and jewelry.

Some ideas that come to mind are:

  • Make a mold out of clay to pour your plastic into and you can make
  • Arrow tips
  • Replacement parts on equipment

and making sturdy glass replacements by simply making a square frame to pour the plastic into.

Even make reusable mini green house covers to get an extra crop out of the fall season. (milk jugs can do the same thing these are just prettier :)


One other thing worth remembering if you have a pistol crossbow. When using homemade bolts made of wood the tips crush when shot at a target (as seen in the video on my post Click Here) BUT if you dip the tops into the melted plastic and hold it downward till it dry (fast drying) it will make the tip strong enough to use the wood bolts!


 Use scissors to cut the plastic bottles into small pieces. Make the pieces small enough to fit inside an old metal container.

Oven Method
Melting plastic in a toaster oven is ideal because it helps to contain the fumes, making it a little safer to be in close proximity to your project. To use this method, cut the pieces of plastic into even-sized bits. It is recommended that you stay away from soda bottles, as they do not melt very well and produce tons of fumes. Bottle caps from milk or soda bottles melt very well and come in a variety of colors that you can swirl or clump together to create a colorful nik nak or light-catching window decoration.
Place the bits of plastic into an oven-safe dish or tin. Arrange them however you like, but bear in mind that this plastic will not melt into a pourable liquid. When plastic is melted, it tends to remain on the sticky side. Soda bottle caps should be “baked” at 350 degrees F and milk bottle lids should be baked at 325 degrees F. If you do decide to try melting soda bottles, stick to the clear ones and bake them around 425 degrees F. After the plastic has melted, use tongs or an oven mitten to remove the dish and quickly scoop the plastic into the mold using the wooden or metal stick. Allow the plastic to cool before gently removing it from the mold.

More of a prepper way because you can do this over fire to.
Double-Boiling Method
A double-boiler is a great way to ensure that the plastic is heated evenly and thoroughly. Water can be used in the bottom pot, however oil tends to produce much better results. If oil is used, it is extremely important that the necessary precautions are taken to ensure that flare-ups and an oil/grease fire do not erupt. Remember that water should NEVER be thrown onto an oil fire. If a fire does erupt, the pan should be completely covered with a lid until the flames are completely gone. Alternatively, and preferably, one could use a fire extinguisher.
Start by bringing the water to a boil, or by heating the oil. Cut the plastic into evenly-sized pieces and add them into the top pot. When place the pot onto the bottom one and keep an eye on the plastic. When it seems to be melted, turn off the heat and quickly but safely transfer the plastic into the mold. Allow the plastic to cool completely before sliding it out of the mold.
If you want to use different colored plastic pieces to create a swirled effect, use the metal or wooden stick to swirl the plastic as soon as it hits the mold. If you allow the plastic time to cool, your swirling effect will not look as nice.

Stay away from toaster oven as the plastic is melting, as the excessive smoke and fumes are harmful.
Wear protective clothing when handling melted plastic. Hot plastic can burn skin if improperly handled.

 Info from here

see example here of milk jugs (this looks like really hard plastic so may come in handy for mold making) CLICK HERE

Sorry no luck on any PDF's for this

ok song for this post has to be Frank Zappa!! Plastic People! Never got to see Frank Zappa but have seen his sons show Zappa does Zappa and he does his father proud!


  1. These method was really helpful also for, I like the image above where the plants ( i don't know what plant was that but maybe it could be used for herbal blend ) was covered buy the transparent plastic. Nice job.

  2. Thanks for sharing your creative idea. it is indeed very helpful.

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  3. can i melt type 1 plastic (water and soda bottles) in a crock pot or oven roaster (the kind that we use to bake turkey at thanksgiving....) instead of double boiler or toaster?

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  17. Appreciate this info very much! One query I have about this however, can the plastic be dyed in any part of the process, such as after it's scooped into the mold?

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