MATERIAL SAFETY DATA SHEET

HILTI, INC.:
P.O. Box 21148
Tulsa, OK 74121
Ph: 1 800 879 6000
Emergency No.: 1 800 879 4444

PRODUCT NAME: FS 657 Fire Block

DESCRIPTION: Intumescent polyurethane foam

INGREDIENTS AND EXPOSURE LIMITS

This product is regarded as an "article" by definition under OSHA Regulation 29 CFR 1910.1200 (c). FS 657 can best be described as a sponge-like polyurethane material which expands when exposed to excessive heat/fire conditions. The physical form of the product precludes exposure to workers under normal conditions of use or any foreseeable emergency.

PHYSICAL DATA

FIRE AND EXPLOSION HAZARD DATA

FLAMMABLE LIMITS: Not applicable FLASH POINT: Not applicable

EXTINGUISHING MEDIA: Not applicable

SPECIAL FIRE FIGHTING PROCEDURES: A self-contained breathing apparatus should be worn when fighting fires involving chemicals.

UNUSUAL FIRE AND EXPLOSION HAZARDS: None known.

REACTIVITY DATA

STABILITY: Stable

INCOMPATIBILITY: None known; see special handling and storage instructions

HAZARDOUS DECOMPOSITION PRODUCTS: If heated to decomposition, can yield CO_x, NO_x, HCN, HCl, and/or HF

HAZARDOUS POLYMERIZATION: Will not occur.

CONDITIONS TO AVOID: See handling and storage requirements.

HEALTH HAZARD DATA

KNOWN HAZARDS: None known

CARCINOGENICITY: No ingredients are listed by IARC, NTP, or OSHA as carcinogens.

PRIMARY ROUTES OF EXPOSURE: None expected

SIGNS AND SYMPTOMS OF EXPOSURE: None expected

MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE: None known

EMERGENCY AND FIRST AID PROCEDURES

EYES: No effects expected

SKIN: No effects expected

INHALATION: Not a route of exposure

INGESTION: Not a likely route of exposure

OTHER: Referral to a physician is recommended if there is any question about the seriousness of any injury/exposure.

CONTROL MEASURES AND PERSONAL PROTECTIVE EQUIPMENT

VENTILATION: General (i.e., natural or mechanically induced fresh air movements).

EYE PROTECTION: As appropriate for the work area or the work being done

SKIN PROTECTION: Not required.

RESPIRATORY PROTECTION: Not normally required. Never enter a confined space without an appropriate air supplied respirator.

PRECAUTIONS FOR SAFE HANDLING AND USE

HANDLING AND STORING PRECAUTIONS: Store in a cool, dry area out of direct sunlight. For industrial use only. Keep out of reach of children. Observe good hygiene practices; i.e. wash after using and before eating or smoking.

SPILL PROCEDURES: Not applicable

REGULATORY INFORMATION

HAZARD COMMUNICATION: This product is considered to be an "article" according to the federal OSHA Hazard Communication Standard.

HMIS CODES: Health 0, Flammability 0, Reactivity 0, PPE A

DOT SHIPPING NAME: Not regulated

TSCA INVENTORY STATUS: Chemical components listed on TSCA inventory.

SARA TITLE III, SECTION 313: This product does not contain any toxic chemicals which are subject to reporting under Section 313 of SARA Title III (40 CFR Part 372).

WASTE DISPOSAL METHODS: Consult with regulatory agencies or corporate personnel for disposal methods that comply with local, state, and federal health and environmental regulations.

HEALTH / SAFETY CONTACTS:
Steve Gerrard (x6309)
Jerry Metcalf (x6704)

The information and recommendations contained herein are based upon data believed to be correct; however, no guarantee or warranty of any kind expressed or implied is made with respect to the information provided.