MSDS - Stego Wrap
View online or download as PDF.MATERIAL SAFETY DATA SHEET
Stego Industries, LLC
216 Avenida Fabricante #101
San Clemente, CA 92672
DATE PREPARED: 5/1/07
EMERGENCY PHONE: 1-877-464-7834
IDENTIFICATION
PRODUCT: Stego Wrap VAPOR BARRIER
CHEMICAL FAMILY: Polyolefin
INGREDIENTS
COMPOSITION NOMINAL % PEL/TLV HAZARDS
Polyethylene >99% None None noted
Flux-Calcined Long term exposure to
Diatomaceous Earth <1% excessive crystalline silica
dust concentrations may
May contain up to 63% cause pulmonary disease.
crystalline silica IARC has classified
1) Cristobalite <60% TWA 0.1 mg/m3 crystalline silica as
respirable dust probably carcinogenic for
2) Quartz <3% TWA 0.1 mg/m3 humans.
respirable dust
The additives in this product are encapsulated in a thermoplastic film with limited release under normal conditions of transportation and storage. Increased release may occur when the resin is melted, ground to a smaller pellet size or subjected to decomposition, as by excessive heat. The specific potential for release under user's conditions of handling of this material should be evaluated by a qualified health specialist.
PHYSICAL DATA
MELTING POINT: CRYSTALLINE, 212 - 257o (100 - 125oC)
(ASTM D 2117)
DENSITY: 0.90 - 0.94 g/cc
(ASTM D 792)
HAZARD FIRE RATING BY THE NATIONAL FIRE PROTECTION ASSOCIATION (NFPA 704): 1
(0=Minimal, 1=Slight, 2=Modest, 3=Serious, 4=Severe)
SOLUBILITY IN WATER: Insoluble
APPEARANCE AND ODOR: Clear to white opaque solid pellets; odorless
HEALTH INFORMATION/OCCUPATIONAL EXPOSURE LIMITS
INHALATION: Nuisance dust can be caused by handling and some operations. Fumes may be generated in operations using heated polyethylene.
Flux-calcined diatomaceous earth contains crystalline silica, which is considered a hazard by inhalation. IARC has classified crystalline silica as probably carcinogenic for humans. This classification is based on the findings of laboratory animal studies that were considered sufficient, and data from epidemiological studies that were considered limited for carcinogenicity. Crystalline silica is also a known cause of silicosis, a non-cancerous lung disease.
INGESTION: Acute oral doses of 8 g/kg fed to rats showed no noticeable toxic effects. Dietary levels of 1.25, 2.5, and 5 percent polyethylene for 90 days produced no adverse effects in rats.
EYE CONTACT: Particles and fines may cause mechanical irritation.
SKIN CONTACT: The pellets can be abrasive. Molten or heated material can cause serious burns to unprotected skin.
OSHA PERMISSIBLE EXPOSURE LIMIT: For nuisance dust - 15 mg/m3 for total dust and 5 mg/m3 for respirable dust.
ACGIH THRESHOLD LIMIT VALUE/TIME-WEIGHTED AVERAGE: For nuisance dust - 10 mg/m3 for total dust.
FIRE AND EXPLOSION HAZARDS
FLASH POINT & METHOD USED: Does not apply
AUTO-IGNITION TEMPERATURE: Approximately 645oF
(ASTM D 1929)
FIRE FIGHTING PROCEDURES: Use water spray, dry chemical, foam or carbon dioxide. If possible, water should be applied as a spray from a fogging nozzle since polyethylene is a surface burning material. Note: Individuals should perform only those fire fighting procedures for which they have been trained.
UNUSUAL FIRE & EXPLOSION HAZARDS: Fire fighters should wear self-contained breathing apparatus in the positive pressure mode with a full face piece when there is a possibility of exposure to smoke, fumes or hazardous decomposition products. The application of high velocity water will spread the burning surface layer.
EMERGENCY FIRST AID PROCEDURES
FOR OVER EXPOSURE BY:
SWALLOWING: No need anticipated, however if occurs call a physician or Poison Control Center promptly.
SKIN CONTACT: If contacted by molten polymer, immediately flush area with large amounts of cold water. Get medical attention promptly.
EYE CONTACT: Immediately flush eyes with plenty of cool water for at least 15 minutes. Do not permit victim to rub eyes. Get medical attention.
INHALATION: No need anticipated, however if occurs, remove victim to fresh air. If victim has stopped breathing, give artificial respiration, preferably mouth-to-mouth and GET MEDICAL ATTENTION IMMEDIATELY.
REACTIVITY
STABILITY: Generally stable
HAZARDOUS POLYMERIZATION: Not likely
CONDITIONS AND MATERIALS TO AVOID: May burn or react violently with fluorine/oxygen mixtures with 50 - 100% fluorine. May be decomposed by strong oxidizing agents such as nitric and sulfuric acids, halogens and chlorinating agents.
HAZARDOUS DECOMPOSITION PRODUCTS: Thermal decomposition products may include C, CO, CO2, H2O, acrolein, formaldehyde, fumes possibly containing silica dust and other organic vapors.
SPECIAL PRECAUTIONS
The handling of pellets in both loading and unloading operations as well as fabrication may cause nuisance dust to form, and necessary precautions for personal protection should be used.
NOTE: The data set forth herein has been carefully compiled. However, there is no warranty of any kind, either expressed or implied. The author assumes no obligation.