Product ID:DELRIN ACETAL RESIN (500AF NC10)
MSDS Date:12/21/1988
FSC:6810
NIIN:00N015219
MSDS Number: BKNQG

Emergency Phone: 800-441-3637

Info Phone: 800-441-7515

Preparer: J B ARMITAGE

Cage: 0ERJ7

Telephone: 800-441-7515;800-441-9442

Cage: 18873

POLYOXYMETHYLENE

FORMALDEHYDE HOMOPOLYMER

POLYTETRAFLUOROETHYLENE

STABILIZERS

ANTIOXIDANTS

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INGEST: NOT A PROBABLE ROUTE OF
EXPOSURE. SKIN: NOT TOXIC. HOT POLYMER WILL CAUSE THERMAL BURNS.
EYE: MECHANICAL IRRITATION. INHAL: FORMALDEHYDE IS HIGHLY
IRRITATING TO THE EYES AND UPPER RESPIRATORY TRACT. WHEN THE
POLYMER IS THERMALLY DECOMPOSED IF MAY CAUSE POLYMER FUME FEVER.
CHRONIC: (SEE EFTS OF OVEREXPOS)
Explanation of Carcinogenicity:NONE.
Effects of Overexposure:HLTH HAZ: FORMALDEHYDE RELEASED IN SMALL
QUANTITY DURING MELT PROCESSING IS CLASSIFIED AS AN ANIMAL
CARCINOGEN.
Medical Cond Aggravated by Exposure:INDIVIDUALS WITH PREEXISTING
DISEASES OF THE LUNGS MAY HAVE INCREASED SUSCEPTIBILITY TO THE
TOXICITY OF EXCESSIVE EXPOSURE TO FORMALDEHYDE.

First Aid:IF EXPOSED TO FUMES FROM OVERHEATING OR COMBUSTION, MOVE TO
FRESH AIR. CONSULT MD IF SYMPTOMS PERSIST. FLUSH EYES WITH PLENTY
OF WATER FOR AT LEAST 15 MINUTES. CONSULT MD IF SYMPTOMS PERSIST.
IF MOLTE N POLYMER CONTACTS SKIN, COOL RAPIDLY WITH COLD WATER. DO
NOT ATTEMPT TO PEEL POLYMER FROM SKIN. OBTAIN MED ATTN FOR THERMAL
BURN.

Flash Point:612F,322C
Extinguishing Media:WATER, CO*2, FOAM, DRY CHEMICAL.
Fire Fighting Procedures:USE NIOSH/MSHA APPROVED SCBA AND FULL
PROTECTIVE EQUIPMENT FOR PROTECTION FROM FUMES OF FORMALDEHYDE AND
HYDROGEN FLUORIDE.
Unusual Fire/Explosion Hazard:BURNS WITH A COLORLESS FLAME. DELRIN DUST
CLOUD IGNITION TEMPERATURE 400C.

Spill Release Procedures:SWEEP UP TO PREVENT A SLIPPING HAZARD.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:DRY STORAGE. KEEP CONTAINERS CLOSED TO
PREVENT CONTAMINATION. OPEN CONTAINERS ONLY IN WELL-VENTILATED
AREAS.
Other Precautions:READ SAFETY PREC TO OBSERVE WHEN HANDLING MOLTEN
DELRIN ACETAL RESIN E-49703 AND SAFETY PREC IN MOLDING MANUAL
E-09143 BEFORE USING DELRIN. AVOID PROLONGED HEATING ABOVE MELTING
POINT (178C).

Respiratory Protection:NIOSH/MSHA APPROVED RESPIRATOR APPROPRIATE FOR
EXPOSURE OF CONCERN IF LOCAL EXHAUST DOES NOT KEEP FORMALDEHYDE
CONCENTRATION BELOW 1 PPM.
Ventilation:LOCAL EXHAUST AT PROCESSING EQUIPMENT.
Protective Gloves:PROTECTIVE GLOVES.
Eye Protection:CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:LONG SLEEVE COTTON SHIRT AND LONG PANTS.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
MATL TO AVOID: AVOID CONTAMINATING TOBACCO PRODUCTS. HAZ DECOMP PRODS:
TWA), AND A SHORT TERM EXPOSURE LIMIT OF 2 PPM (15-MINUTE).
HYDROGEN FLUORIDE HAS A PEL OF 3 PPM (8 HOUR TWA).

HCC:N1
Melt/Freeze Pt:M.P/F.P Text:342F,172C
Spec Gravity:1.54
Solubility in Water:INSOLUBLE
Appearance and Odor:GRANULES WITH SLIGHT FORMALDEHYDE ODOR.

STRONG ACIDS & BASES (DECOMPOSES FORMING FORMALDEHYDE). STRONG
OXIDIZING AGENTS. CARE SHOULD BE TAKEN TO (SEE SUPP DATA)
Stability Condition to Avoid:HEATING ABOVE 230C (FORM FORMALDEHYDE &
CAN ALSO EVOLVE HYDROGEN FLUORIDE & TOXIC FLUORINATED
HYDROCARBONS).
Hazardous Decomposition Products:FORMALDEHYDE IS CLASSIFIED AS AN
ANIMAL CARCINOGEN & HAS AN OSHA PERMISSIBLE EXPOSURE LIMIT OF 1 PPM
(8-HR (SUPP DATA)

Waste Disposal Methods:INCINERATION OR LANDFILL IN COMPLIANCE WITH
FEDERAL, STATE AND LOCAL REGULATIONS. ALKALINE SCRUBBING TO REMOVE
GASEOUS COMBUSTION PRODUCT REQUIRED FOR INCINERATION.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.