HENKEL LOCTITE CORPORATION                                             08/18/02
ROCKY HILL, CONNECTICUT 06067
EMERGENCY PHONE: (860) 571-5100
MATERIAL SAFETY DATA SHEET              Page 01 of 05
Loctite(R) Gasket Eliminator(R) 518 Flange Sealant
51831
1.  CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Product Name:              Loctite(R) Gasket Eliminator(R) 518 Flange Sealant
Item No.:                  51831
Product Type:              Anaerobic
2.  COMPOSITION, INFORMATION ON INGREDIENTS
Ingredients                      CAS No.               %
Polyurethane methacrylate        Proprietary         70-75
Polyglycol dimethacrylate        25852-47-5           5-10
SILICA, AMORPHOUS, FUMED,
CRYSTALLINE-FREE                112945-52-5          5-10
ACRYLIC ACID*                    79-10-7              5-7
CUMENE HYDROPEROXIDE*            80-15-9              1-3
ETHYLENE GLYCOL*                 107-21-1             1-3
1-Acetyl-2-phenylhydrazine       114-83-0           0.1-1
Saccharin                        81-07-2            0.1-1
* This component is listed as a SARA Section 313 Toxic Chemical.
The polyurethane methacrtylate resin is registered with the state of
New Jersey as a trade secret: NJ TSRN 06-070-1067-5073P.
Ingredients which have  exposure limits
Exposure Limits (TWA)           ACGIH           OSHA            OTHER
Ingredients                     (TLV)           (PEL)
SILICA, AMORPHOUS, FUMED,
CRYSTALLINE-FREE               10 mg/m3 TWA    6 mg/m3 TWA     3 mg/m3 TWA
resp. dust
ACRYLIC ACID                    2 ppm TWA skin  10 ppm TWA skin 1 ppm TWA skin
5.9 mg/m3 skin  30 mg/m3 skin   3 ppm STEL skin
CUMENE HYDROPEROXIDE            None            None            1ppm(6mg/m3)
Skin(WEEL)
ETHYLENE GLYCOL                 None            50 ppm ceiling  None
125mg/m3ceiling
Exposure Limits (STEL)          ACGIH           OSHA
Ingredients                     (TLV)           (PEL)
ETHYLENE GLYCOL                 39.4ppm ceil ar None
100mg/m3 ceil a
HENKEL LOCTITE CORPORATION                                             08/18/02
ROCKY HILL, CONNECTICUT 06067
EMERGENCY PHONE: (860) 571-5100
MATERIAL SAFETY DATA SHEET              Page 02 of 05
Product Name:              Loctite(R) Gasket Eliminator(R) 518 Flange Sealant
Item No.:                  51831
3.  HAZARDS IDENTIFICATION
Toxicity:                  Liquid is an eye and skin irritant.
Vapors may irritate eye, nose and throat.
Primary Routes of Entry:   None known
Signs and Symptoms
of Exposure:              Irritation of eyes, skin , nose or throat. May
cause dermatitis on,prolonged contact in sensitive
individuals.
Existing Conditions
Aggravated by Exposure:   Acrylic acid: Upper respiratory and lung diseases.
Literature Referenced                   Carcinogen
Ingredients             Target Organ and Other Health Effects   NTP IARC OSHA
Polyurethane methacrylate       No Data                         NO  NO   NO
Polyglycol dimethacrylate       ALG IRR                         NO  NO   NO
SILICA, AMORPHOUS, FUMED,
CRYSTALLINE-FREE               NUI                             NO  N/A  NO
ACRYLIC ACID                    ALG COR IRR KID LIV             NO  N/A  NO
CUMENE HYDROPEROXIDE            ALG CNS COR IRR MUT             NO  NO   NO
ETHYLENE GLYCOL                 BLO BNM CNS DEV EYE IRR KID LIV NO  NO   NO
MET
1-Acetyl-2-phenylhydrazine      ALG BLO KID MUT SOM             NO  NO   NO
Saccharin                       NTO                             NO  N/A  NO
-------------------------------------------------------------------------------
Abbreviations
N/A Not Applicable                      ALG Allergen
BLO Blood                               BNM Bone Marrow
CNS Central nervous system              COR Corrosive
DEV Developmental                       EYE Eyes
IRR Irritant                            KID Kidney
LIV Liver                               MET Metabolic
MUT Mutagen                             NTO No Target Organs
NUI Nuisance dust                       SOM Some evidence of carcinogenicity
4.  FIRST AID MEASURES
Ingestion:                 Do not induce vomiting. Keep individual calm.
Obtain medical attention.
Inhalation:                Remove to fresh air.  If symptoms persist, obtain
medical attention.
Skin Contact:              Wash thoroughly with soap and water
Eye Contact:               Flush at least 15 minutes with water.  Obtain
medical attention.
HENKEL LOCTITE CORPORATION                                             08/18/02
ROCKY HILL, CONNECTICUT 06067
EMERGENCY PHONE: (860) 571-5100
MATERIAL SAFETY DATA SHEET              Page 03 of 05
Product Name:              Loctite(R) Gasket Eliminator(R) 518 Flange Sealant
Item No.:                  51831
5.  FIRE FIGHTING MEASURES
Flash Point:               More than 200°F        Method:  Tag Closed Cup
Recommended
Extinguishing Agents:     Carbon dioxide, foam, dry chemical
Special Firefighting
Procedures:               Not available
Hazardous Products formed
by Fire or Thermal Decomp Irritating organic vapors.
Unusual Fire or
Explosion  Hazards:       None
Explosive Limits:
(% by volume in air)Lower  2.0%  Acrylic acid
(% by volume in air)Upper  8.0%  Acrylic acid
6.  ACCIDENTAL RELEASE MEASURES
Steps to be taken in case
of spill or leak:        Scrape up as much as possible and store in a
partly filled, closed container until disposal.
Residues may be cleaned up with solvent.
7.  HANDLING AND STORAGE
Safe Storage:              Store below 100 deg. F
(Contact Loctite Customer  Service 1-800-243-4874 for shelf life information)
Handling:                  Avoid skin and eye contact.  Avoid breathing vapor
8.  EXPOSURE CONTROLS, PERSONAL PROTECTION
Eyes:                      Safety glasses or goggles.
Skin:                      Neoprene gloves.
Ventilation:               Sufficient to maintain vapor concentration below
TLV
Respiratory                Not available
See Section 2 for Exposure Limits.
9.  PHYSICAL AND CHEMICAL PROPERTIES
Appearance:                Red gel
Odor:                      Mild
Boiling Point:             More than 300°F
pH:                        Does not apply
Solubility in Water:       Low
Specific Gravity           1.1 at 80°F
Volatile Organic Compound
(EPA Method 24)           13.0%; 143 grams per liter
Vapor Pressure:            Less than 5mm at 80°F
HENKEL LOCTITE CORPORATION                                             08/18/02
ROCKY HILL, CONNECTICUT 06067
EMERGENCY PHONE: (860) 571-5100
MATERIAL SAFETY DATA SHEET              Page 04 of 05
Product Name:              Loctite(R) Gasket Eliminator(R) 518 Flange Sealant
Item No.:                  51831
9.  PHYSICAL AND CHEMICAL PROPERTIES                               (continued)
Vapor Density:             Not available
Evaporation Rate
(Ether = 1)               Not available
10.  STABILITY AND REACTIVITY
Stability:                 Stable
Hazardous Polymerization:  Will not occur
Incompatibility:           None
Conditions to Avoid:       Not available
Hazardous Decomposition
Products (non-thermal):   None
11.  TOXICOLOGICAL INFORMATION
Estimated Oral LD50 more than 5000 mg/kg.
Estimated Dermal LD50 more than 2000 mg/kg.
12.  ECOLOGICAL INFORMATION
No data available
13.  DISPOSAL CONSIDERATIONS
Recommended methods of
disposal:                 Incinerate following EPA and local regulations.
EPA Hazardous Waste
Number                    NH - Not a RCRA Hazardous Waste Material
14.  TRANSPORTATION INFORMATION
DOT (49 CFR 172)
Domestic Ground Transport
Proper Shipping Name:   Unrestricted
Hazard Class or
Division:             Unrestricted
Identification Number:  None
Marine Pollutant:       None
IATA
Proper Shipping Name:   Unrestricted
Class or Division:      Unrestricted
UN or ID Number:        None
15.  REGULATORY INFORMATION
CA Proposition 65:         WARNING: This product contains chemicals known to
the State of California to cause cancer
and birth defects or other reproductive
HENKEL LOCTITE CORPORATION                                             08/18/02
ROCKY HILL, CONNECTICUT 06067
EMERGENCY PHONE: (860) 571-5100
MATERIAL SAFETY DATA SHEET              Page 05 of 05
Product Name:              Loctite(R) Gasket Eliminator(R) 518 Flange Sealant
Item No.:                  51831
15.  REGULATORY INFORMATION                                         (continued)
harm.
Ethylene Oxide
This product contains Saccharin.  No Prop65 hazard
warning is necessary if this product is used as
reasonably anticipated.
16.  OTHER INFORMATION
Estimated NFPA(R) Code:
Health Hazard:          2
Fire Hazard:            1
Reactivity Hazard:      1
Specific Hazard:        Does not apply
Estimated HMIS(R) Code:
Health Hazard:          2
Flammability Hazard:    1
Reactivity Hazards:     1
Personal Protection:    See Section 8.
NFPA is a registered  trademark of the National Fire Protection Assn.
HMIS is a registered  trademark of the National Paint and Coatings Assn.
Prepared By:               Stephen Repetto
Title:                     Research Chemist, Environmental Health & Safety
Company:                   Loctite Corp., 1001 Tr Br Cr, Rocky Hill CT 06067
(24hr.) Phone:             (860) 571-5100
Revision Date:             January 26, 1999              Revision: 0032
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