THORO SYSTEM PRODUCTS -- THORO PATCH  -- 5610-01-339-8340
<pre>=====================  Product Identification  =====================

Product ID:THORO PATCH
MSDS Date:04/27/1992
FSC:5610
NIIN:01-339-8340
=== Responsible Party ===
Company Name:THORO SYSTEM PRODUCTS
Address:7800 NW 38TH ST
City:MIAMI
State:FL
ZIP:33166
Country:US
Info Phone Num:305-597-8100
Emergency Phone Num:305-597-8100
CAGE:DO697
=== Contractor Identification ===
Company Name:THORO SYSTEM PRODUCTS, INC
Address:P.O. BOX 127
City:CENTERVILLE
State:IN
ZIP:47330
Phone:305-592-2081
CAGE:DO697
Company Name:THORO SYSTEMS PRODUCTS INC
Address:7800 NW 38TH ST
Box:City:MIAMI
State:FL
ZIP:33166-6506
Country:US
CAGE:1DM95

=============  Composition/Information on Ingredients  =============

Ingred Name:SILICA, CRYSTALLINE - QUARTZ
CAS:14808-60-7
RTECS #:VV7330000
Fraction by Wt: 70-80%
OSHA PEL:0.1 MG/M3 RDUST
ACGIH TLV:0.1 MG/M3 RDUST

Ingred Name:CALCIUM HYDROXIDE; (LIME)
CAS:1305-62-0
RTECS #:EW2800000
Fraction by Wt: <1%
OSHA PEL:15 MG/M3 TDUST
ACGIH TLV:5 MG/M3

Ingred Name:PORTLAND CEMENT
CAS:65997-15-1
RTECS #:VV8770000
Fraction by Wt: 20-30%
OSHA PEL:15 MG/M3 TDUST
ACGIH TLV:10 MG/M3 TDUST

Ingred Name:SPILL PROC: MAY BE SLIPPERY. USE CAUTION TO AVOID FALLS.
RTECS #:9999999ZZ

Ingred Name:HNDLG/STOR PREC: DUSTS. A SENSITIZED INDIVIDUAL SHOULD NOT
    BE EXPOSED TO PRODUCT WHICH CAUSES SENSITIZATION.
RTECS #:9999999ZZ

Ingred Name:EYE PROT: SAFETY GLASSES RECOMMENDED IF GRINDING, CUTTING,
    ETC OF HARDENED MATERIAL IS REQUIRED.
RTECS #:9999999ZZ

=====================  Hazards Identification  =====================

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:YES    IARC:YES	  OSHA:NO
Health Hazards Acute and Chronic:INGEST: NO TOX EFTS KNOWN. MAY CAUSE
    IRRIT TO DIGEST TRACT. EYES: CAN IRRIT & MAY BURN FOLLOWING DIRECT
    CNTCT. AGGREGATE PARTICLES MAY CAUSE ABRASIONS TO CORNEA. SKIN:
    DRYNESS, ITCHING, RASHES & BURNS  CAN DEVELOP FOLLOWING CNTCT. SKIN
    ABRASIONS CAN OCCUR IF MATL RUBBED AGAINST SKIN. DERM & SKIN SENSIT
    (EFTS OF OVEREXP)
Explanation of Carcinogenicity:SILICA, CRYSTALLINE-QUARTZ: IARC
    MONOGRAPHS, SUPPLEMENT, VOL 7, PG 341, 1987:GROUP 2A. NTP 6TH
    ANNUAL REPORT ON (SUPDAT)
Effects of Overexposure:HLTH HAZ: CAN DEVELOP AFTER RPTD/PRLNG CNTCT.
    MATL IS NOT ABSORBED THRU SKIN. INHAL: CONTAINS CRYSTALLINE QUARTZ
    (FREE) SILICA. RPTD INHAL IN EXCESS OF TLV OVER EXTENDED PERIODS
    CAN RSLT IN IRREVERSIB LE FIBROSIS OF LUNGS (SILICOSIS). OVEREXP TO
    DUSTS CAN IRRIT RESP TRACT & CAUSE DMG TO MUC MEMB OF UPPER RESP
    TRACT.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

=======================  First Aid Measures  =======================

First Aid:SKIN: RINSE SKIN FREE OF MATL W/WATER TO AVOID ABRASIONS. DO
    NOT RUB UNTIL SKIN IS FREE OF MATL THEN WASH THORO W/SOAP & WATER.
    IF REDNESS, ITCHING, BURNING/OTHER SYMP DEVELOP/PERSIST, SEEK MED
    ATTN.  REMOVE & DECONTAM CLTHG & FOOTWEAR BEFORE REUSE. EYES: DO
    NOT RUB. RINSE IMMED W/PLENTY WATER FOR @ LEAST 15 MIN & CONSULT MD
    IMMED. INGEST: GIVE 1 OR 2 GLASSES WATER TO DRINK & REFER TO MED
    (SUPDAT)

=====================  Fire Fighting Measures  =====================

Extinguishing Media:MEDIA SUITABLE FOR SURROUNDING FIRE .
Fire Fighting Procedures:USE NIOSH/MSHA APPROVED SCBA AND FULL
    PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE.

==================  Accidental Release Measures  ==================

Spill Release Procedures:KEEP UNNEC PEOPLE AWAY. FOLLOW PERSONAL PROT
    PROC WHEN CLEANING UP SPILLS. COLLECT SPILLED PWDR BY DUSTLESS METH
    & PLACE IN CNTNRS. IF NEC, DIKE SPILLS OF MIXED MATL W/ABOSRB MATL
    & SHOVEL INTO WASTE  CNTNRS. AVOID GENERATING DUSTS. WET MATL (ING
    4)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

======================	Handling and Storage  ======================

Handling and Storage Precautions:STORE IN COOL DRY AREA OFF GROUND.
    AVOID CNTCT W/ACIDS & OTHER OXIDIZERS. MINIMIZE GENERATION OF
    DUSTS. AVOID SKIN & EYE CNTCT. AVOID BRTHG (ING 5)
Other Precautions:CNTNR DISP: EMPTY CNTNRS MAY RETAIN SMALL AMOUNTS OF
    RESIDUAL PROD. OBSERVE ALL HAZ PRECAUTIONS & PERSONAL PROTECTION
    RECOMMENDATIONS WHEN HNDLG EMPTY CNTNRS. DISPOSE OF AS NON-HAZ
    WASTE IN COMPLIANCE  W/APPLICABLE FED, STATE & LOCAL REGS.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:WHERE EXPOSURE TO DUSTS FROM THIS PRODUCT MAY
    EXCEED THE APPLICABLE EXPOSURE LIMITS, A NIOSH/MSHA APPROVED
    RESPIRATOR FOR THE DUST SHOULD BE USED.
Ventilation:USE LOCAL EXHAUST WHEN POSS TO KEEP EXPOS BELOW APPLIC
    EXPOS LIMITS FOR SILICA, PORTLAND CEMENT & NUISANCE DUSTS.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:FULL FSHLD/CHEM TIGHT GOGG. (ING 6)
Other Protective Equipment:PROT CLOTHING TO AVOID SKIN CONTACT. PROVIDE
    EYEWASH STATION/OTHER SUITABLE MEANS OF CLEANSING EYES & SKIN IN
    EMER.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
EXPLAN OF CARCIN: CARCIN, 1991:ANTIC TO BE CARCIN. FIRST AID PROC:
    PERS. INHAL: REMOVE TO FRESH AIR. IF COUGH, IRRIT, DFCLTY
    BRTHG/OTHER RESP SYMP PERSIST/DEVELOP, CONSULT MD. NOTE TO MD:
    MUCOSAL INJU RY FOLLOWING INGEST OF MATL MAY CONTRAINDICATE THE
    INDUCTION OF VOMITING IN TREATMENT OF POSSIBLE INGESTION.

==================  Physical/Chemical Properties  ==================

Solubility in Water:SLIGHT
Appearance and Odor:GRAY POWDERED SOLID. NO PARTICULAR ODOR.

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS SUCH AS ORGANIC & INORGANIC ACIDS. ACIDS WILL
    REACT WITH CEMENT, LIME & CARBONATES.
Stability Condition to Avoid:PRODUCT REACTS (HYDRATES) AT SLOW,
    CONTROLLED RATE WHEN MIXED W/WATER RELEASING MINIMAL HEAT. NOT A
    HAZARDOUS REACTION.
Hazardous Decomposition Products:NONE.

====================  Disposal Considerations  ====================

Waste Disposal Methods:REUSE POWDER OR MIXED MATERIAL IF
    UNCONTAMINATED. DISCARDED PRODUCT & HARDENED MORTAR ARE
    NON-HAZARDOUS WASTES UNDER RCRA (40 CFR 261). DISPOSE OF AS
    NONHAZARDOUS WASTE IN COMPLIANCE WITH APPLICABLE F EDERAL, STATE &
    LOCAL REGULATIONS.

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