Ted Pella, Inc.
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Material Safety Data Sheet

Product No. 18190 PELCO Acrylic Embedding Resin
Issue Date (04/18/00) Review Date (03-12-03)

Section 1: Product and Company Identification
Product Name: Acrylic Embedding Resin
Synonym: Micro-Bed Resin
Company Name
Ted Pella, Inc. and PELCO International, P.O. Box 492477, Redding, CA 96049-2477
Domestic Phone (800) 237-3526 (Mon-Thu. 6:00AM to 4:30PM PST; Fri 6:00AM to 4:00PM PST)
International Phone (01) (530) 243-2200 (Mon-Thu. 6:00AM to 4:30PM PST; Fri 6:00AM to 4:00PM PST)
Chemtrec Emergency Number 1-800-424-9300 24 hrs a day.

Section 2: Composition / Information on Ingredients

Principle Hazardous Component(s)
(chemical and common name(s)) (Cas. No)




TLV mg/m3




N-Butyl Methacrylate








Styrene Monomer








Hydroxy Propyl Methacrylate (27813-02-1)







Glycol Methacrylate








Section 3: Hazard Identification
Emergency overview
Appearance: Clear with a penetrating ester odor.
Immediate effects: Skin allergy.

Potential health effects
Primary Routes of entry: Skin contact, eye contact, and inhalation.
Signs and Symptoms of Overexposure: Allergic reaction on the skin.  Prolonged or repeated exposure can cause liver or kidney damage.
Eyes: Irritation
Skin: Irritation to skin upon repeated or prolonged contact.
Ingestion: Material may be harmful if swallowed.
Inhalation: Vapor or mist can irritate the nose or throat. Can cause severe irritation or possible permanent injury.
Chronic Exposure: Prolonged rabbit dermal exposures to certain mixtures resulted in central nervous system effects.
Chemical Listed As Carcinogen Or Potential Carcinogen: No
See Toxicological Information (Section11)

Potential environmental effects
See Ecological Information (Section 12)

Section 4: First Aid Measures
If accidental overexposure is suspected
Eye(s) Contact: Flush eyes with large amounts of water for at least 15 minutes. Consult physician if irritation persists.
Skin Contact: Wash affected skin area with soap and water.
Inhalation: Move subject to fresh air. Give oxygen.
Ingestion: ND

Note to physician
Treatment: ND
Medical Conditions generally Aggravated by Exposure: Allergic reaction on the skin.  Prolonged or repeated exposure can cause liver or kidney damage.

Section 5: Fire Fighting Measures
Flash Point: 64�F
Flammable Limits: LEL Lower 2%; UEL Upper 8%

Auto-ignition point: 294�C / 561�F
Fire Extinguishing Media: CO2, dry chemical, water spray.
Special Fire Fighting Procedures: Do not enter fire area without proper protection. Fight fire from safe distance (protected location). Heat / impurities may increase temperature /build pressure/ rupture closed containers, spreading fire, increasing risk of burns/ injuries. Water may be ineffective in fire fighting due to low solubility. Use water spray or fog for cooling. Pressure relief system may plug with solids, increasing risk of overpressure. Notify authorities if liquid enters sewer or public waters.
Unusual Fire and Explosion Hazards: Heat can cause polymerization.  Heated containers can explode.  Vapors can travel to a source of ignition and flash back.

Hazardous combustion products: ND

DOT Class: Flammable Liquid

Section 6: Accidental Release Measures
Steps to be Taken in Case Material is Released or Spilled: Keep spectators away.  Eliminate ignition sources.  For large spills in confined area, use a self-contained breathing apparatus (pressure-demand, MSH/NIOSH approved or equivalent).  Dike and contain spill with inert material (e.g. sand, earth).  Transfer liquid to containers for recovery or disposal and solid dike material to separate containers for disposal.  Contaminated monomer can be unstable.  Add extra inhibitor to prevent polymerization.  Remove contaminated clothing promptly and wash affected skin areas with soap and water.  Keep spills and cleaning runoffs out of municipal sewers and open bodies of water.  NOTE: Spills on porous surfaces can contaminate groundwater.
Waste Disposal Methods: Dispose of waste according to Federal, State and Local Regulations.

Section 7: Handling and Storage
Precautions to be Taken in Handling and Storage: Store out of direct sunlight in a cool place.  Do not store near radiators, steam pipes and other sources of heat.  Do not store under oxygen-free atmosphere.  Leave air space over liquid surface in all containers; introduce air periodically if stored more than 6 months.  Use material within 1 year of retest for stability.  Stability-test material stored in bulk every month; drums and pails every 3 months.  Use positive pressure to replace air in vapor spaces of containers after sampling.
Storage temperature: Maximum: 32�C/90�F  
Storage Pressure: ND

Section 8: Exposure Controls / Personal Protection
Engineering Controls

Ventilation required: Use local exhaust ventilation with a minimum capture velocity of 100 ft/min. (30m/min.) at the point of vapor evolution. Refer to the current edition of INDUSTRIAL VENTILATION: A Manual of Recommended Practice published by the American Conference of Governmental Industrial hygienists for information on the design, installation, use and maintenance of exhaust systems.

Personal Protection Equipment

Respiratory protection: A respiratory protection program meeting OSHA 1910.134 and ANSIZ88.2 requirement must be followed whenever workplace conditions warrant a respirator's use. None required if airborne concentrations are maintained below the TWA/TLV's listed in the Information on Ingredients section.
Up to 10 times the TWA/TLV: Wear a MSHA/NIOSH approved (or equivalent) half-mask, air-purifying respirator.
Up to 100 times the TWA/TLV: Wear a MSHA/NIOSH approved (or equivalent) full-face piece, air-purifying respirator.
Above 100 times the TWA/TLV or unknown: Wear a MSHA/NIOSH approved (or equivalent) self-contained breathing apparatus in the positive pressure mode, or MSHA/NIOSH approved (or equivalent) full face piece airline respirator in the positive pressure mode with emergency escape provisions.
Air-purifying respirators should be equipped with organic vapor cartridges.

Protective gloves:  Nitrile or Neoprene.  The gloves listed may provide protection against permeation.  Gloves of other chemically resistant materials may not provide adequate protection.  Rinse and remove gloves immediately after use. Wash your hands with soap and water.  Gloves should be removed and replaced immediately if there is any indication of degradation or chemical breakthrough.  NOTE: Material is a potential skin Sensitizer.

Skin protection: Use chemically resistant apron or other impervious clothing to avoid prolonged or repeated skin contact.
Eye protection: Use chemical splash goggles and face shield (ANSI Z87.1 or approved equivalent). Eye protection worn must be compatible with respiratory protection system employed.
Additional clothing and/or equipment: Chemically resistant apron

Exposure Guidelines

See Composition/Information on Ingredients (Section2)

Section 9 Physical and Chemical Properties
Appearance and Physical State: Clear.
Odor (threshold): Penetrating ester odor.
Specific Gravity (H2O=1): 1.05
Vapor Pressure (mm Hg): ND
Vapor Density (air=1): ND
Percent Volatile by volume: ND
Evaporation Rate (butyl acetate=1):
Boiling Point: 60�C / 140�F
Freezing point / melting point: -50�C, -58�F
pH: ND
Solubility in Water: Negligible
Molecular Weight: ND

Section 10: Stability and Reactivity
Stability: This material is considered stable under specified conditions of storage, shipment and/or use. MEQH is added as a polymer inhibitor.
Conditions to Avoid: Avoid heat, oxygen-free atmosphere. Sunlight.

Materials to Avoid (Incompatibility): Acids, bases, oxidizing agents, reducing agents, mild steels.
Hazardous Decomposition Products: There are no known hazardous decomposition products for this material.
Hazardous Polymerization: May occur.

Section 11: Toxicological Information
Results of component toxicity test performed: Oral LD50-Rat >5000mg/kg.
Human experience: ND
This product does not contain any compounds listed by NTP or IARC or regulated by OSHA as a carcinogen.

Section 12: Ecological Information
Ecological Information: ND
Chemical Fate Information: ND

Section 13 Disposal Considerations
RCRA 40 CFR 261 Classification: ND
Federal, State and local laws governing disposal of materials can differ. Ensure proper disposal compliance with proper authorities before disposal.

Section 14: Transportation Information
US DOT Information: Proper shipping name: Flammable liquid, n.o.s. (Monomer, methacrylate ester, mixture)
Hazard Class: 3
Packaging group: II
UN Number: UN1993
IATA: Proper shipping name: Flammable liquid, n.o.s. (Monomer, methacrylate ester, mixture)
Hazard Class: 3
Packing group: II
UN Number: UN1993

Section 15: Regulatory Information 
United States Federal Regulations
MSDS complies with OSHA�s Hazard Communication Rule 29, CFR 1910.1200.

State Regulations
California Proposition 65: No

International Regulations
Canada WHMIS: ND
Europe EINECS Numbers: ND

Section 16: Other Information 
Label Information: ND
European Risk and Safety Phrases: ND
European symbols needed: ND
Canadian WHMIS Symbols: ND
Hazard Rating: Health: ND; Fire: ND; Reactivity: ND
(0=least, 1=Slight, 2=Moderate, 3=High, 4=Extreme)

Abbreviations used in this document
NE= Not established
NA= Not applicable
NIF= No Information Found
ND= No Data

Ted Pella, Inc. makes no warranty of any kind regarding the information furnished herein. Users should independently determine the suitability and completeness of information from all sources. While this data is presented in good faith and believed to be accurate, it should be considered only as a supplement to other information gathered by the user. It is the User's responsibility to assure the proper use and disposal of these materials as well as the safety and health of all personnel who may work with or otherwise come in contact with these materials.

 MSDS Form 0013F1 V2