Material Safety Data Sheet

Date last revised April, 2001

                                      I.           GENERAL INFORMATION

Chemical Name & Synonyms                                  Trade Name & Synonyms

MULTI COMPONENT SILICONE SEALANT                          985 SILICONE ACTIVATOR

Chemical Family                                           Formula

SILICONE                                                  MIXTURE

Proper DOT Shipping                                       DOT Hazard Classification

CAULKING COMPOUND                                         NONE

Manufacturer                                              Manufacturer’s Phone Number

PECORA CORPORATION                                        215-723-6051

Manufacturer’s Address                                    Chemtrec Phone Number

165 Wambold Road, Harleysville, PA 19438                  800-424-9300

                                             II.       INGREDIENTS

Principal Hazardous Components                                 Percent         Threshold Limit Value (Units)

                                                                               3.5 Mg/M3

ACETYLENE BLACK (CAS # 133-38-64)                                7

POLYDIMETHYLSILOXANE (CAS # 63148-62-9)                         45             NOT ESTABLISHED

ORGANOSILANE (CAS # 35141-30-1)                                  2             200 PPM

UPON HYDROLYSIS THIS PRODUCT WILL LIBERATE

METHANOL (CAS # 64-56-1) WHICH IS SUBJECT TO THE

REPORTING REQUIREMENTS OF SARA TITLE III, SECTION

313 AND 40 CFR, PART 372.







HEALTH     3                   FLAMMABILITY 1                                  REACTIVITY      1









                                            III.      PHYSICAL DATA

Boiling Point (oF)                                        Specific Gravity (H20 = 1)

UNKNOWN                                                   0.97

Vapor Pressure (mm Hg.)                                   Percent Volatile by Volume (%)

UNKNOWN                                                   UNKNOWN

Vapor Density (Air = 1)                                   Evaporation Rate (ETHER= 1)

HEAVIER                                                   SLOWER

                                                          p

Solubility in Water                                         H

INSOLUBLE                                                 N/A



Appearance & Odor

GRAY PASTE � SLIGHT ODOR









                                IV.        FIRE & EXPLOSION HAZARD DATA

Flash Point (Test Method)                                 Auto Ignition Temperature

> 200o F. T. C. C.                                        UNKNOWN

Flammable Limits                                          LEL                         UEL

                                                          UNKNOWN                     UNKNOWN

Extinguishing Media:

WATER SPRAY, DRY CHEMICAL OR CO2

Special Fire Fighting Procedures: WEAR SELF-CONTAINED BREATHING APPARATUS WHEN FIGHTING FIRES

INVOLVING CHEMICALS.





Unusual Fire & Explosion Hazards:

NONE KNOWN

985 SILICONE ACTIVATOR                                                                PAGE 2 OF 2

                                               V. Health Hazard Data

OSHA Permissible Exposure Limit                      ACGIH Threshold Limit Value

SEE SECTION II                                       SEE SECTION II

Carcinogen � NTP Program                             Carcinogen � IARC Program

NO                                                   NO

Symptoms of Exposure: VAPORS EMITTED AS THE SEALANT CURES MAY IRRITATE THE EYES, NOSE, AND THROAT

PARTICULARY IN AN ENCLOSED OR POORLY VENTILATED AREA. DIRECT CONTACT WITH THE UNCURED

MATERIAL MAY IRRITATE THE EYES AND THROAT.



Medical Conditions Aggravated By Exposure: PRECLUDE FROM EXPOSURE THOSE INDIVIDUALS HAVING A HISTORY OF

RESPIRATORY ILLNESS OR PRE-EXISTING EYE OR SKIN CONDITIONS.



Primary Route (s) of Entry:

INHALATION AND SKIN OR EYE CONTACT

Emergency First Aid: INHALATION: MOVE TO FRESH AIR. IF BREATHING IS DIFFICULT, GIVE OXYGEN. CALL A

PHYSICIAN. SKIN: REMOVE MATERIAL AND WASH WITH SOAP AND WATER. EYES: FLUSH WITH RUNNING

WATER FOR 15 MINUTES. CONSULT A PHYSICIAN. INGESTION: CONSULT A PHYSICIAN IMMEDIATELY



                                             VI. REACTIVITY DATA



Stability              Unstable            Conditions to Avoid



                   x Stable                WATER AND HIGH TEMPERATURES



                                           Materials to Avoid WATER AND STRONG ACID

Incompatibility

Hazardous              May Occur           Conditions to Avoid

                   x

Polymerization        Will Not Occur      HIGH HUMIDITY AND HIGH TEMPERATURES

Hazardous Decomposition Products: OXIDES OF CARBON, SILOXANE AND POSSIBLY OTHER FUMES WHICH MAY BE

TOXIC.





                             VII. ENVIRONMENTAL PROTECTION PROCEDURES

Spill Response: COVER WITH DRY ABSORBENT MATERIAL SUCH AS SAND OR DIRT. PICK UP AND PLACE IN A

CONTAINTER FOR DISPOSAL.









                                       VIII. SPECIAL PROTECTION INFORMATION

Eye Protection                                                   Skin Protection

GLASSES OR GOGGLES IF NECESSARY                                 NONE NORMALLY REQUIRED

Respiratory Protection (Specific Type)                           Ventilation Recommended

ORGANIC VAPOR RESPIRATOR IN CONFINED AREA                        LOCAL VENTILATION

Other Protection:

SAFETY GLASSES FOR OVERHEAD APPLICATIONS.



                                               IX. SPECIAL PRECAUTIONS

Hygienic Practices In Handling & Storage: TO PROLONG SHELF LIFE, STORE AT TEMPERATURES 80o F. WASH HANDS

AFTER USE. STORE IN DRY AREA AWAY FROM HEAT.



Precautions For Repair & Maintenance of Contaminated Equipment:

SEE SECTION V.

Other Precautions:





                                        KEEP OUT OF REACH OF CHILDREN!