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Removing polyurethane foam
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Topic: Removing polyurethane foam (Read 6029 times)
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Yoritomo
Regular Member
Posts: 36
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Removing polyurethane foam
«
on:
December 09, 2018, 05:09:59 PM »
Hello!
How do I dissolve polyurethane foam (insulation spray)?
I mean dissolving the cured (solid) foam.
Thank you!
-Kostas.
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Enthalpy
Chemist
Sr. Member
Posts: 4036
Mole Snacks: +304/-59
Re: Removing polyurethane foam
«
Reply #1 on:
December 11, 2018, 01:26:37 PM »
Hi Kostas,
Foams are destroyed more quickly than plain polymers, but by the same compounds, so what you need is the
compatibility
of
polyurethane
(search keywords). Examples:
https://www.spilltech.com/wcsstore/SpillTechUSCatalogAssetStore/Attachment/documents/ccg/POLYURETHANE.pdf
https://www.engineeringtoolbox.com/polyurethane-chemical-resistance-d_1878.html
http://cdn.norgren.com/pdf/Chem%20Resis%20Man.pdf
https://www.hooverferguson.com/media/wysiwyg/docs/reference/Polyethylene-Compatibility-Guide.pdf?direct=true
essentially, PU is degraded by acids, bases, oxidisers, ketones, alcohols and many more.
Acetone
would be my first candidate, but this depends also on the materials you want to keep.
Please be careful with explosive or toxic vapours, etc etc.
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Removing polyurethane foam