RE: alternative solvent for sla parts?

From: William Ballmaier (
Date: Thu Feb 03 2000 - 21:37:43 EET

Propylene Carbonate is superior to TPM. It cuts through the resin 4-5 times
faster, water soluble, cheap and non-hazardous (its used in perfume and some
food products).


William Ballmaier
Scimitar Prototyping
1529 Bourbon Parkway
Streamwood, Illinois 60107

Tel: 630-483-3875
Fax: 630-483-3876

-----Original Message-----
From: []On Behalf Of
Alaniz, Pedro A
Sent: Thursday, February 03, 2000 10:06 AM
To: ''
Subject: alternative solvent for sla parts?

Has anyone tried a different solvent, besides TPM, to clean the sla parts?
Southern California AQMD is a little more strict about the environment.

The internal Environmental office does not feel that TPM meets AQMD rule
1122 section c and d. Thus there is a need to find an alternative way to
clean sla parts. Rule 1122 says that a cleaning material shall have less
than 50 g/l of VOC as used. Or be used in an airtight or airless cleaning
If I want to keep using my RAMCO wash station I need to use something else
besides TPM. (less than 50 g/l of VOC)
If I want to keep using TPM I need to buy another cleaning system, maybe an
ultrasonic cleaning system.

Pedro Alaniz
The Boeing Company

For more information about the rp-ml, see

For more information about the rp-ml, see

This archive was generated by hypermail 2.1.2 : Tue Jun 05 2001 - 23:02:45 EEST