MATERIAL SAFETY DATA SHEET







I       PRODUCT IDENTIFICATION



Trade Name:               Mica                                                Synonym:            Silicone

Chemical Family:          Rigid Mica Plate (505); Flexible Mica PLT (132)     Formula:            Mixture





II      HAZARDOUS INGREDIENTS



Principle Components:

Hydro Carbon Type <0.5% (This is not a hazardous ingredient)

Cogemica Silicone Resin





III     PHYSICAL DATA



Boiling Point:                     N/A                                        Vapor Pressure:                N/A

Evaporation Rate:                  N/A                                        Vapor Density:                 N/A

Solubility in Water:               N/A                                        Specific Gravity:              2.0

Percent Volatile By Volume:        <0.5%

Appearance and Odor:               Light Brown or Silver, Mild to Odorless





IV      FIRE AND EXPLOSION HAZARDS DATA



Flash Point (Method used): N/A                                                Autoignition Temperature: N/A

Flammable Limits: Upper: N/A Lower: N/A



Extinguishing Media: Water, CO2 Foam, Dry Chemical

Special Fire Fighting Procedures: Special Pressure, Self-contained breathing apparatus.

Unusual Fire & Explosion Hazard: None





V       HEALTH HAZARD INFORMATION



OSHA Permissible Exposure Limit: N/A                                          Carcinogen - NTP: None Known

Symptoms of Exposure: None                                                    ACGIH Threshold Limit Value: N/A

Carcinogen - IARC Program: None Known                                         Primary Route(s) of Entry: Inhalation/Dust



Medical Conditions Aggravated By Exposure: Harmful if swallowed. Cogemicanite is essentially nonhazardous unless dust is

created. MICA dust which produces pneumoconiosis would be present only if material was sanded. sawed, etc.



EMERGENCY FIRST AID: If swallowed induce vomiting.





VI      REACTIVITY DATA



Stability: Stable

Incompatibility (Material to Avoid): Avoid contact with strong acid, basic or oxidizing agents.



Hazardous Decomposition Products: Carbon Monoxide/Dioxide, Silicone Dioxide, Toxic fumes or Aromatic Hydrocarbons.

Hazardous Polymerization: Will not occur.

VII     SPILL OR LEAK PROCEDURES



Steps to Be Taken in Case Material Is Released or Spilled: Replace in original container.



Waste Disposal Method: In accordance with Local, State and Federal Waste Disposal Regulations.





VIII    SPECIAL PROTECTION INFORMATION



Respiratory Protection (Specify Type): N/A                                   Ventilation: Use in well ventilated area.

Protective Gloves: Gloves                                                    Eye Protection: Safety Glasses

Other Protective Equipment: None





IX      SPECIAL PRECAUTIONS



Hygienic Practices in Handling & Storage: Wash hands before eating and smoking.



Precautions for Repair & Maintenance of Contaminated Equipment: Sweep or vacuum area for dust.

Other Precautions: None





Issued By:       S. Dierks

Date:            February 1993