Plastic Container solvent resistance ?

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mowhoong's Avatar (by Gravatar) posted on
November 12, 2009, 12:42 am
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I am looking for some good plastic container to put in printing ink
beside the metal can container.
I know most plastic containers are made of PE or PP material but are
there other better plastic material without reaction to ink solvent
such as melt down or deformation.
Do any members has any pointer on this.
Thank You.
Regards

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Rolf Wissmann's Avatar (by Gravatar) posted on
November 12, 2009, 6:08 am
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Re: Plastic Container solvent resistance ?

PTFE is best for chemical resistance ....
http://www.vp-scientific.com/Chemical_Resistance_Chart.htm

mowhoong@hotmail.com wrote:


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mowhoong's Avatar (by Gravatar) posted on
November 12, 2009, 11:08 pm
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Re: Plastic Container solvent resistance ?




 
Frank's Avatar (by Gravatar) posted on
November 17, 2009, 7:40 pm
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Re: Plastic Container solvent resistance ?

wrote:

Not sure what they use for 5 gal. gas cans - bottom of mine has
recycling symbol 7 (other).
Also not sure that ink solvents are hydrocarbons.


 
Rolf Wissmann's Avatar (by Gravatar) posted on
November 18, 2009, 7:03 am
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Re: Plastic Container solvent resistance ?

Hydrocarbons are no problem for PTFE:
http://www.bottleinfo.com/PTFE_Plastic.html=20

If you look for a "common container" it's PE or PP.
It sounded like you were looking for a "better plastic material"!?

Frank wrote:


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Frank's Avatar (by Gravatar) posted on
November 18, 2009, 7:49 am
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Re: Plastic Container solvent resistance ?


I'm not sure but the "other" plastic is probably a blend and could
contain a barrier resin.
While the solvent may not attack the plastic, permeation rate may be
so high that the barrier is necessary.  PE is extremely permiable to
oxygen.  For food contact a barrier resin like EVOH is often used.  I
recall that EVOH has about 1/1000 the oxygen permiability of PE.

There may also need for tougheners to maintain physical properties.

A broken 5 gal. container of ink could be a disaster to a small
company.  I'd be leary of a small producer that did not meticulously
check the suitability of is product to be stored in a new container.


 

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