We've found sodium silicate particles on equipment due to over application of floor sealant. I'm looking for information regarding if it will effect our equipment performance either electrically or mechanically, or the health of employees who use it. If a complete cleaning is necessary, what would be the best way to remove the sodium sulfate contamination without damaging our equipment? Jennifer -----Original Message----- From: <Rudy Sedlak> [mailto:[log in to unmask]] Sent: Tuesday, December 11, 2001 10:13 AM To: [log in to unmask] Subject: Re: [TN] Sodium Silicate Contamination Jennifer: Allow me to ask why you are interested, and where you have the potential for contamination by Sodium Silicate. Sodium Silicate is a very common ingredient in water based alkaline (read this as high pH) detergents, and is commonly used as an anti-tarnish, anti-corrosion agent in these detergents. Most machine dishwashing compounds have sodium silicate in them. It can cause problems if the pH of the cleaner gets too low, as it always does in a rinse. It can also cause problems in high water hardness, where it reacts with the water hardness, and falls out of solution as typically Calcium Silicate. And even if you have enough water softener in the detergent to overcome the hardness in the cleaner itself, in the rinse you can still generate Calcium Silicate. My recommendation is to avoid Sodium Silicate in general, unless you have a well formulated product with enough water softeners, and a good, non-recirculating rinse. Rudy Sedlak RD Chemical Company ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------