HDPE Processing: Difference between revisions

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HDPE block stock can be made from recycled plastic milk bottles (recycle code 4) melted in a domestic oven at around 230 degrees C. I have tried a few processes with variable success.
[[Category:Projects]]
[[Category:Michael's Projects]]
[[Category:Reusing]]
{{Project
|image=File:Hdpe-proc-bottle-melt-1.png
|name=HDPE Processing
|primary=[[User:Msemtd|Michael Erskine]]
|created=23/10/2015
|status=Complete
|type=member
}}
HDPE block stock can be made from recycled plastic milk bottles (recycle code 4) melted in a domestic oven at around 230 degrees C.
 
* wikipedia http://www.bpf.co.uk/plastipedia/polymers/HDPE.aspx
* plastipedia http://www.bpf.co.uk/plastipedia/polymers/HDPE.aspx
 
I have tried a few processes with variable success: -
* initial tests using the Hackspace reflow toaster oven at 220-230 C
* some fun with (cheap?) silicone cookware that breaks down at cooking temperatures!
* slight fumes but not unpleasant or dangerous - appropriate ventilation employed
 
Further tests at home in domestic oven: -
* cleaner process - using baking tray and baking parchment
* pressing into a plywood mould to make "slugs" for milling
 
<gallery>
File:Hdpe-proc-bottle-cuts-1.png|Bottle cuts
File:Hdpe-proc-bottle-cuts-2.png|Arranged for neat melting
File:Hdpe-proc-bottle-melt-1.png|Oven melt with blue cap
File:Hdpe-proc-bottle-melt-2.png|Oven melt 2 stages
File:Hdpe-mill1.png|Milling slug on Bridgeport
</gallery>
 
==See Also==
{{also|Freestyle Skateboard Skidplates}}

Latest revision as of 15:44, 18 April 2019

HDPE Processing
Primary Contact Michael Erskine
Created 23/10/2015
Completed {{{completeddate}}}
Dormant {{{dormantdate}}}
Version {{{version}}}
Members {{{members}}}
Manufacturer {{{manufacturer}}}
Model {{{model}}}
Location [[{{{location}}}]]
GitHub / Repo {{{repo}}}
Status Complete
Type Members Project
Live Status {{{livestatus}}}
QR code

HDPE block stock can be made from recycled plastic milk bottles (recycle code 4) melted in a domestic oven at around 230 degrees C.

I have tried a few processes with variable success: -

  • initial tests using the Hackspace reflow toaster oven at 220-230 C
  • some fun with (cheap?) silicone cookware that breaks down at cooking temperatures!
  • slight fumes but not unpleasant or dangerous - appropriate ventilation employed

Further tests at home in domestic oven: -

  • cleaner process - using baking tray and baking parchment
  • pressing into a plywood mould to make "slugs" for milling

See Also