Project data
Authors Stef Breukel
Instance of Bottle smooth formed plastic
Export to Open Know How Manifest
Page data
Part of 3rd world arm lamp
Type Project
Keywords PET
SDGs Sustainable Development Goals SGD12 Responsible consumtion and producction
Authors stef breukel
Published 2006
License CC BY-SA 3.0
Language English (en)
Page views 1,184
Location data
Loading map...
Location Europe, Amsterdam, Netherlands

Of course you can do a lot of different things with a smooth formed Plastic Bottle, I made a separate article on the subject.

Materials needed to make a smooth formed bottle[edit | edit source]

  • Light weight PET Bottle

Tools to make a smooth formed bottle[edit | edit source]

Wear protection!
  • Big pan
  • Protective glasses (very important for safety)
  • Protective gloves (very important for safety)

How to make a smooth formed bottle[edit | edit source]

Unfolding the bottles[edit | edit source]

  1. Take the labels off the bottles.
  2. Put boiling water in the PET bottles.
  3. Tighten the screw cap on the PET bottles.
  4. Put the PET bottles in a pan, and heat up so the water in the PET bottles will steam.
  5. After a few seconds the heat and the steam will unfold the bottom of the PET bottles.

The bottle gets proximately 10% smaller

Bottle material.
Attention Sign.svg
WARNING: Only steam the PET bottle for a few seconds, otherwise the screwcap will pop off and the bottle will fold together rendering it useless

Cool down the PET bottles until there is no pressure inside.

Unfolding the bottle with pump[edit | edit source]

  1. Make valve in cap.
  2. Put boiling water in the PET bottle.
  3. Tighten the screw cap on the PET bottle.
  4. Cap not to Hot .
  5. pump up the bottle
  6. After a few seconds the heat and the steam will unfold the bottom of the PET bottles.

The bottle gets proximately 10% smaller

Attention Sign.svg
WARNING: Only steam the PET bottle for a few seconds, otherwise the screwcap will pop off and the bottle will fold together rendering it useless

Cool down the PET bottles until there is no pressure inside.

Before and after.

Now you have a Smooth formed plastic bottle.

Plastic material[edit | edit source]

Use sharp knife
  • The bottle is smaller
  • The surface is smooth formed
  • The surface is easy to clean
  • The plastic material is thicker and stronger, This can have advantages, for some uses

Cutting the plastic[edit | edit source]

Use a sharp knife to cut the plastic and melt the edges to prevent it from tearing.

Useful material[edit | edit source]

Lamp reflector.

You can do a lot of thing with a smooth formed bottle such as:

  • Solar water disinfection
  • Protective lamp cap
  • Food plate
  • 3rd world CCFL lamp (2007 model)
  • If you glue reflective material inside you can make a reflector for a camping lamp

External links[edit | edit source]