Material Safety Data Sheet

                                                                                   Date Prepared: May 2003

Product Number: 6338, 6388                                                         Revision Date: April 2004



SECTION 1: Manufacturer Identification



Mason Color Works, Inc.                                                            Phone:      (330) 385-4400

250 East 2nd Street/P.O. Box 76                                                    Fax:        (330) 385-4488

East Liverpool, OH 43920-5076



            HMIS Classification:     Health                       2*

                                     Flammability                 0

                                     Reactivity                   0

                                     Personal Protection          See Section 6

                                     *Indicates possible chronic health effects.





SECTION 2: Identification of Product

          Chemical Family:        Inorganic

          Product Names: Cobalt Meta-Silicate 6338, Mazerine Blue 6388

          Chemical Abstract Number(CAS) 68187-40-6

          Chemical Name: Cobalt Silicate Blue - Olovine

          Chemical Formula: Co2SiO4



SECTION 3 & 4: Hazardous ingredients Identity/Information and Overexposure Symptoms

                                ACGIH-TLVs               OSHA PELs            NOISHA RELs

Cobalt Oxide (Co3O4)            0.02 mg/m3               0.5 mg/m3            N/A

Cas # 1396-06-1



ACGIH: Animal carcinogen: Agent is carcinogenic in experimental animals at dose levels, by route(s) of

administration at site, or histologic type, or by mechanism considered relevant to workers exposure.

Available epidemiologis studies do not confirm an increased risk of cancer in humans except under

common levels of exposure.



SYMPTOMS OF OVEREXPOSURE:

             Inhalation: Prolonged inhalation of dust or metal dust, and fume or mist containing cobalt may

             cause serious respiratory illness. May cause an irritation of respiratory organs of sensitive persons

             resulting in obstruction of airways with shortness of breath.

             Eye Contact: May cause serious eye irritation.

             Skin Contact: Prolonged exposure may produce irritation

             Ingestion: Large amounts may cause irritation of the gastrointestinal tract, nausea, vomiting and

             diarrhea.

                                         ACGIH-TLVs               OSHA PELs                 NOISHA RELs

Silica, Crystalline (SiO2)               0.1 mg/m3                10 mg/m3                  0.05 mg/m3

Cas # 14808-60-7

                                                                  SiO2 + 2

SYMPTOMS OF OVEREXPOSURE:

            Inhalation:

            a) Prolonged exposure to respirable crystalline silica (quartz) can cause Silicosis, a

            fibrosis (scarring) of the lungs. Silicosis may be progressive; it may lead to disability

            and death. Silicosis increases risk of Tuberculosis.

            b) Inhaled from occupational sources is classified as carcinogenic to humans. (cancer)

            c) There is evidence that exposure to respirable crystalline silica or that the disease

            Silicosis is associated with increased incidence of Sceroderma, an auto-immune

            disorder manifested by fibrosis (scarring) of the skin and internal organs.

            d) Thjere are several studies suggesting that exposure to respirable silica or that the

            disease Silicosis is associated with the increased incidence of kidney disorders.

            (Nephrotoxicity)

            Eye Contact: May cause abrasions of the cornea.

            Skin Contact: Not applicable

            Ingestion: Not applicable



SECTION 5: Emergency and First Aid Procedures

          Eye: flush thoroughly with water for 15 minutes.

          Skin: remove contaminated clothing, wash thoroughly with soap and water.

          Inhalation: remove to fresh air, may give oxygen if needed.

          Ingestion: give large amounts of water to induce vomiting, only in conscious persons.



IF THESE FIRST AID MEASURES FAIL, CONSULT A PHYSICIAN



Principal Routes of Entry:

            Inhalation: Dust from this product may cause irritation of the respiratory system.

            Overexposure may cause lung damage.

            Ingestion: Large amounts may cause irritation of the gastrointestinal tract, nausea,

            vomiting and diarrhea.

            Skin & Eye: Nuisance dust, prolonged or repeated may cause irritation.



SECTION 6: Special Protection Information

          Respiratory Protection: Use only NIOSHA/OSHA approved respiratory protection with

          adequate ventilation; avoid breathing dust. Do not exceed Occupational Exposure Limit.

          Wash thoroughly after handling. No food or beverage should be consumed in work area.

          Personal Protective Equip: Wear appropriate gloves and goggles to avoid skin and eye

          contact. Safety showers and eye statioins must be present in work stations.

          Ventilation: Use local exhaust or mechanical such as a dust collector to maintain dust

          levels below Occupational Exposure Limits.



SECTION 7: Physical and Chemical Characteristics



            Boiling Point: N/A                                  Odor: Odorless

            Solubility in water: trace                          Specific Gravity (water=1): N/A

            Vapor Pressure (mmHg): N/A                          Evaporation rate: None

            Vapor Density (air=1): N/A                          % Volatile by volume: None

            Appearance:







SECTION 8: Reactivity Data

          Stability: Stable

          Hazardous Polymerization: will not occur

            Incompatibility: None

            Hazard Decomposition of product: N/A







SECTION 9: Fire and Explosive Data

          Flash point: N/A                                              Flammable Limits:

          Unusual Fire and Explosion Hazard: None expected.

          Extinguishing Media: Carbon Dioside, dry chemical or water

          Special Fire Fighting Procedures: Wear self contained breathing apparatus when

          large quantities involved.



SECTION 10: Spill or Leak Procedures



            Contain spillage and scoop or vacuum. Avoid making dust, put in appropriate container

            for disposal. Waste disposal method in accordance with Federal, State and Local Laws.









This product is a blend of various metal oxides, salts and some compounds which are

interfused by high calcinations to form the finished product. Section 3, Hazardous

ingredients Identity/Information, and Section 4, Symptoms of Overexposure, pertain to

individual components. Section 5 through Section 10 are in reference to the finished

product.







            *******     Attention all Retailers of Mason Stains           *******



ALL retailers of this product are REQUIRED by law to supply their customers with a copy of

material safety data sheet with initial purchase.



***SARA 313



This product contains certain oxides and compounds which are subject to reporting requirements of

Superfund Amendment and Reauthorization Act (SARA) of 1986, Section 313 of the Emergency Planning

and Community Right to Know Act and of 40 CRF, Part 372.



The information contained in this MSDS must be provided to every employee who is exposed to this

product in any way. We recommend the user reads and understands the contents herein before

using this material.



PLEASE KEEP ON FILE FOR FUTURE REFERENCE. DO NOT THROW AWAY! MSDS'S ARE REQUIRED FOR

FIRST SHIPMENT, AND WILL BE SENT AGAIN WHEN REVISED UPON YOUR NEXT ORDER OF PRODUCT

OR BY REQUEST.



Disclamer