Mark wrote:
Urethane technology has come a long way since the 5370 came out... but given time, all urethanes seem to revert to their primordial goo.
It was for this reason that I started using the ScotchBrite sheets. 3M originally supplied both uncoated and abrasive-coated material (the latter marketed for metal finishing and automotive painting applications). I have both, and it is not hard to tell the difference. However, my stash is over 20 years old, and I do not know what 3M makes now (in particular, whether they still supply uncoated grades).
As others have noted, there are several sources of materials that are intended for air-filtration service.
Best regards, Charles _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
