MATERIAL SAFETY DATA SHEET

SECTION I � Product/Company Information



                                            INTEGRITYâ„? Temporary Crown & Bridge Material

1.1 Product Trade Name:

1.2 Part (Item) Number:                     666100 � 666400 All Package Configurations

1.3 Division Name:                          DENTSPLY Caulk

1.4 Address:                                38 W. Clarke Avenue

    City State Zip:                         Milford DE 19963 - 0359

1.5 Emergency Telephone Number:             (800) 424-9300 (Chemtrec)

1.6 Telephone Number for Information:       (302) 422-4511 (8:00 AM � 4:30 PM Eastern Time)

1.7 Date Prepared:                          8/26/98 Date Revised: 06/29/01



SECTION II - Hazardous Ingredients/Identity Information

Hazardous Components              OSHA PEL          ACGIH TLV         CAS #      Percent

Barium glass                        N. E.             N. E.            65997-17-3 > than 35 %

Hydrophobic Amorphous Fumed Silica 15 mg/m3          10 mg/m3         68611-44-9 < than 10 %

Glycol methacrylate                 N. E.             N. E.            N.E.       > than 35%

Multifunctional methacrylates       N. E.             N. E.            N.E.       < than 15%

Malonylurea derivative              N. E.             N. E.            N.E.       < than 1%



SECTION III - Physical/Chemical Characteristics

                                                             3.6 Specific Gravity: 1.4 g/cm2

3.1 Boiling point:       214°F(101°C)

3.2 Vapor pressure:      Negligible                          3.7 Melting Point:      N.A.

3.3 Vapor density:       >1                                  3.8 Evaporation rate: > 1

3.4 Solubility in water: Not Soluble

3.5 Appearance and odor: Creamy white � yellowish paste, with low odor. Multiple shades.



SECTION IV - Fire and Explosion Hazard Data

4.1 Flash point (method used):          >100°C (>212°F)(DIN, ASTM)

4.2 Flammability (explosive limits):   LEL: N.E.               UEL: N.E.

4.3 Extinguishing media:                Carbon dioxide, foam, and dry chemical.

4.4 Special fire fighting procedures:   Firefighters should wear full protective clothing including a self contained-

                                        breathing apparatus. Water may be ineffective unless used as a fine spray or fog.

                                        Use water spray to cool fire exposed containers.

4.5 Unusual fire and explosion hazards: During a fire, irritating gas may be present from the decomposition of the

                                        dimethacrylate resins. Polymerization on heating, exothermically.



SECTION V � Reactivity Data

5.1 Stability:                             Unstable:                 Stable: X

5.2 Conditions to avoid (stability):       Direct sunlight on paste, elevated temperatures above 50°C (122°F).

5.3 Incompatibility (materials to avoid):  Strong oxidizing materials, peroxides, metal powders, and free radical

                                           initiators.

5.4 Hazardous decomposition or byproducts: In case of fire, acrid fumes and traces of hydrogen chloride.

5.5 Hazardous polymerization:              May occur: X              Will not occur:

5.6 Conditions to avoid (polymerization):  Elevated temperatures, metal powders, peroxides, free radical initiators.

SECTION VI - Health Hazard Data

6.1 Route(s) of entry:                 Inhalation?: No             Skin?: Yes          Ingestion?: Possible

6.2 Health hazards (acute and chronic):Avoid contact with eyes. May cause irritation. Eyes: Material can cause

                                       irritation. Skin: Material may be an irritant. Susceptible persons with known

                                       allergies to methacrylates and acrylates may develop allergic response.

                                       Ingestion: Material is probably not harmful if swallowed.

6.3 Carcinogenicity:                   NTP?: Not listed IARC monographs?: Not listed OSHA regulated?: No

                                       All components of this product are in compliance with the inventory listing

                                       Requirements of the U. S. Toxic Substances Control Act (TSCA) Chemical

                                       Substance Inventory.

6.4 Signs and symptoms of exposure: Dermal redness or irritation. Severe allergic response may result in breathing

                                       difficulties.

6.5 Medical conditions generally

     aggravated by exposure:           Open sores and wounds of the skin. Individuals with known sensitivity to

                                       methacrylates, acrylates, or urethane dimethacrylates.

6.6 Emergency first aid procedures:    Eyes: In case of eye contact, flush with flowing water for 15 minutes. Get

                                       prompt medical attention. Skin: Wash skin with soap and water. If irritation

                                       persists, call physician. Ingestion: If swallowed give 2 glasses of water to drink.

                                       See a physician.



SECTION VII - Precautions for Safe Handling and Use

7.1 Steps to be taken in case material

     is released or spilled:Scoop up bulk material and place in a labeled plastic or metal container. Avoid gross

                                skin contact to minimize the possibility of contact dermatitis to susceptible persons.

7.2 Waste disposal methods: Dispose of in accordance with Federal, State and Local environmental control gulations.

7.3 Precautions to be taken in

     handling and storage: Store away from food and beverages. Store away from extreme heat. Store at ambient

                                temperature out of direct sunlight and heat. Do not store above 77°F (25°C). Store in a dry

                                area. Keep away from foodstuff and beverages.

7.4 Other precautions:          Observe normal warehouse handling procedures. Handling of this product should be by

                                trained dental healthcare professionals only.



SECTION VIII - Control Measures / Personal Protection

8.1 Respiratory protection:                    None required during normal use of this product.

8.2 Ventilation:                               None required during normal intended use of this product.

8.3 Protective gloves:                         Use latex or vinyl gloves.

8.4 Eye protection:                            Protective goggles.

8.5 Other protective clothing or equipment:    Chemically resistant apron or other impervious clothing.

8.6 Work/Hygienic practices:                   Avoid eye and skin contact, inhalation and ingestion. Observe normal care

                                               when working with chemicals. Do not eat, drink or smoke when using..





         NFPA HAZARD

       CLASSIFICATIONS

Health                1                   NFPA � National Fire Protection Association

Flammability          1                   N.A. - Not Applicable

Reactivity            0                   N.E. - Not Established

Specific Hazard     N. A.

                                                                                              566398 (R-06/29/01)