Mark,
I have received this inquiry from several different sources. Based on feedback
from these inquiries, both the Somos(R) 7100 and 8100 Series should both be
resistant to kerosene and diesel. If there is a doubt about any solvent
testing, we HIGHLY recommend the following approach:
a.) Call the material supplier and ask if they have had any experience with
testing these solvents. [When DuPont is working on a new material, we put it
through numerous solvency tests to understand the chemical interactions. Based
on these results, we can usually predit how different solvents will interact
with the cured parts.]
We also make the following suggestions:
b.) Make a small part, e.g. (~1" x 1" x 1/8").
c.) Give the part to your client to put in their solvent for 24 hours. After
24 hours, remove the part and examine it for any possible degradation. This
will be an excellent way to easily test the solvent's interactions with the
part. Although we believe kerosene and diesel will not significantly interact
with DuPont Somos(R) 7100, the compositions of these solvents range due to
reformulations in different regions depending on air quality controls (CA is
very strict) and the season. (There are winter and summer grades of gasoline).
Also, solvent's compositions can vary from manufacturer to manufacturer. There
might by an inpurity in one solvent that is not present in the same solvent
produced by a different manufacturer. That's why it is always best to check.
I hope this helps. Please don't hesitate to contact me if you have any other
inquiries about how DuPont Somos(R) materials work.
Sincerely,
Michelle P. Wyatt
Technical Marketing Engineer
DuPont Somos(R)
Two Penn's Way, Suite 401
New Castle, DE 19720
Tel: 302-328-8537
Fax: 302-328-5693
email: Michelle.P.Wyatt@usa.dupont.com
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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