MATERIAL SAFETY DATA SHEET



Resco Products, Inc.                                         Prepared By:            Research & Development

Penn Center West                                             Telephone No:           336-299-1441 Ext. 20

Building 2, Suite 430                                        Date:                   11/23/05

Pittsburgh, PA 15276                                         Supersedes Date:        06/16/03

Emergency Telephone No. : 412-494-4491



                                                Section 1 � Product Name

Common Name:                 Hydrous Aluminum Silicate

Intended Use:                Clay

Product Name:                Redart Clay

Brand Code:                  0278

                                  Section 2 � Composition and Information on Ingredients

Ingredient                      CAS No.        % Weight       OSHA PEL                 ACGIH TLV            Sec.

                                                                                                            313

Crystalline Silica (Total)    Not Applicable     10-20        Not Applicable           Not Applicable         No

                                                          0.05mg/m 3(Respirable)   0.05mg/m 3(Respirable)

    Cristobalite               14464-46-1

                                                          0.05mg/m 3(Respirable)   0.05mg/m 3(Respirable)

    Tridymite                  15468-32-3

                                                          0.1mg/m 3(Respirable)    0.05mg/m 3(Respirable)

    Quartz                     14808-60-7

                                            Section 3 � Hazards Identification

Emergency Overview:

No unusual fire or spill hazard. Dusts may be irritating to skin, eyes and mucous membranes.

Primary Route(s) of Entry for Particulate:

Inhalation: Yes                                             Other: No

Skin: Yes                                                   Ingestion: No

Potential Adverse Health Effects:

    Acute

    Eye: Dusts of this product may irritate and/or abrade eyes

    Skin: None Known.

    Inhalation: Dusts of this product may be irritating to respiratory tract.

    Chronic

    Eye: None Known

    Skin: None Known

    Inhalation: Prolonged breathing of dust of this product in excess of the stated PEL or TLV may cause lung disease

    (Silicosis). According to the International Agency for Research on Cancer (IARC), there is sufficient evidence in

    humans for the carcinogenicity of inhaled crystalline silica in the form of quartz or cristobalite from occupational

    sources.

Carcinogenicity: Crystalline Silica inhaled in the form of quartz or cristobalite from occupational sources is

carcinogenic to humans (GROUP 1 IARC, NTP).

California Proposition 65: This product contains crystalline silica, chemical known to the State of California to cause

cancer

Signs and Symptoms of Overexposure: Coughing can result from overexposure to dust.

Medical Conditions Generally Aggravated by Exposure to Particles: Pre-existing disease or other conditions of the

lungs, skin, eyes and mucous membranes.

                                              Section 4- First Aid Measures

Eye Contact: Flush product from eyes using large amounts of water. If irritation continues, seek medical attention.

Skin Contact: Wash product from skin using soap and water, if irritation continues, seek medical attention.

Inhalation: If exposed to excessive levels of dusts, remove victim to fresh air. Seek medical attention if coughing or

other symptoms persist.

Ingestion: As shipped, product not likely to be ingested; but if it occurs, do not induce vomiting. Seek medical attention.

                                            Section 5 � Fire Fighting Measure

Flash Point: Not Applicable

Flammable Limits: Not Applicable

LEL: Not Applicable

UEL: Not Applicable

Autoignition Temperature: Not Applicable

Extinguishing Media: As appropriate for surrounding fire.

Fire Fighting Instructions: As appropriate for surrounding fire.

                                                                                                                Page 1 of 3

Product Name: Redart Clay                                                              Date: 11/23/05

Fire Fighting Equipment: Fire fighters should wear NIOSH approved, positive pressure, self-contained breathing

apparatus (SCBA) and full protective clothing (bunker gear) when fighting fires.

Hazardous Combustion Products: None

Flame Propagation or Burning Rate of Solid Material: Not Applicable

Flammability Classification (As defined by 29 CFR 1910.1200) Not Flammable

                                         Section 6 � Accidental Release Measures

If dusts are generated during the spill, these should be collected by gently sweeping the material into a dustpan or

collecting with a vacuum device. All personnel engaged in cleanup operations should adhere to the instructions outlined

in Section 8 for personal protection. Disposal of wastes from cleanup operations should be carried out in accordance

with the guidelines outlined in Section 13.

                                             Section 7 � Handling and Storage

Handling: Follow good housekeeping and hygienic practices.

Storage: The product should be stored in a dry location. Pallet protection such as shrink wrap or stretch wrap should be

kept in place until the product is required.

                                    Section 8 � Exposure Control/Personal Protection

Engineering Controls: Process enclosures, local exhaust ventilation, or other engineering process controls may be

necessary to keep any air contaminants associated with this product within their TLV’s. This is particularly true if user

operation generates dust.

Respiratory Protection: This MSDS is prepared to alert customers and other users to the various components of the

product and their relative quantity and toxicity in the product as it is provided. The user must review his/her own

circumstances and then determine what is required to establish a respiratory protection program that meets OSHA

1910.134 requirements. If workplace conditions warrant respiratory protection, use MSHA/NIOSH approved units as

listed in the current 29 DFR 1910.134 for the existing conditions. Some type of respiratory protection is recommend for

even the best conditions. Actual respirator selection should be made after consultation with a competent health and

safety professional.

Eye Protection: Industrial type safety glasses offer some protection, goggles offer more.

Protective Gloves As needed to prevent direct skin contact.

                     :

Other Protective Clothing or Equipment: Wear clothing designed to limit direct exposure to product or dusts

associated with product. If clothing becomes contaminated, it should be laundered before wearing again. Maintain good

personal hygiene. Wash hands thoroughly before eating or drinking.

                                      Section 9 � Physical and Chemical Properties

Appearance: Granular Powder, Earthy Color                    Vapor Pressure (mm Hg): Not Applicable

Odor: Earthy Odor                                            Vapor Density (Air=1): Not Applicable

Water Solubility: Slight                                     pH (10% solids): 4-6

Density (H2O=1): 2.6                                         Boiling Point (ºC): Not Applicable

% Volatile (By Weight): 0                                    Melting Point: Greater than 2000F

                                                             Evaporation Rate: Not Applicable

                                         Section 10 � Stability and Reactivity

Chemical Stability: This product is stable under normal conditions for shipping, storage and installation.

Conditions to Avoid: None

Incompatible Material: None

Hazardous Decomposition or Combustion Products: None

Hazardous Polymerization: Not Applicable

Reactivity: None

                                       Section 11 � Toxicological Information

                                LD50                                    CD50

Crystalline Silica

   Cristobalite                 No Data                                 No Data

   Tridymite                    No Data                                 No Data

   Quartz                       No Data                                 No Data

Target Organs

Crystalline Silica

   Cristobalite                 Respiratory

   Tridymite                    Respiratory

   Quartz                       Respiratory

Long Term Toxicity

Crystalline Silica

Page 2 of 3

Product Name: Redart Clay                                                         Date: 11/23/05

   Cristobalite                 Repeated and prolonged inhalations may cause lung disease (Silicosis)

   Tridymite                    Repeated and prolonged inhalations may cause lung disease (Silicosis)

   Quartz                       Repeated and prolonged inhalations may cause lung disease (Silicosis)

Short Term Toxicity

Crystalline Silica

   Cristobalite                 Repeated and prolonged inhalations may cause lung disease (Silicosis)

   Tridymite                    Repeated and prolonged inhalations may cause lung disease (Silicosis)

   Quartz                       Repeated and prolonged inhalations may cause lung disease (Silicosis)

                                      Section 12 � Ecotoxicological Information

Accidental Release: No information has been developed regarding the ecotoxicity or environmental fate of this product.

                                        Section 13 � Disposal Considerations

Waste Disposal Method: The material or dust from this material is not considered a hazardous waste as defined by 40

CFR 261. However, used product (and dusts generated during maintenance and tear-out operations) may be

contaminated with other hazardous substances from the particular application (for example, metals). Therefore,

appropriate waste analysis may be necessary to determine proper disposal. A qualified environmental professional in

accordance with applicable federal, state, and local regulations should determine waste characterization and

disposal/treatment methods.

                                          Section 14 � Transport Information

DOT (Department of Transportation) Classification under 49 CFR 172.101: Not Regulated

UN (United Nations) Number: Not Applicable

NA (North American) Number: Not Applicable

                                         Section 15 � Regulatory Information

Resco Products, Inc. considers this product to be hazardous as defined by the OSHA Hazardous Communications

Standard (29 CFR 1910.1200). Section 2 chemicals, which must be addressed, and the summary of regulatory and

other lists upon which they appear are:

Ingredient             CAS Number    List (s)

Crystalline Silica

   Cristobalite        14464-46-1    1,2,3,4

   Tridymite           15468-32-3    1,2,3,4

   Quartz              14808-60-7    1,2,3,4

The lists are as follows:

          1. ACGIH TLV “Threshold Limit Values� (1997)

          2. OSHA Air Contaminants � Permissible Exposure Limits (1989)

          3. Canadian Domestic Substances List

          4. EPA TSCA Chemical Inventory List (1992)

WHMIS Hazard Class (Canada): D2A

SARA Title III:

          Section 302 Extremely Hazardous: None

          Section 313 Toxic Chemicals: See Section 2

                                           Section 16 � Other Information

This information and recommendations set forth herein are taken from sources believed to be accurate as of the date

herein; however, Resco Products, Inc. makes no warranty with respect to the accuracy of the information or the

suitability of the recommendations, and assumes no liability to any user thereof.









Page 3 of 3