ACFoam II or III Nail Base

SECTION 2: Hazards identification

2.1 Classification of the substance or mixture

Not a hazardous substance or mixture

2.2 Label elements

Not a hazardous substance or mixture WHMIS: In Canada, the product mentioned above is not considered hazardous under the Workplace Hazardous Materials Information System (WHMIS) No unusual conditions are expected from this product. Freshly expanded or heated foam may off-gas some pentane- blowing agent, which is heavier than air and may accumulate to ignitable concentrations if stored inside a sealed container or within confined areas. Ignitable atmospheres have concentrations that exceed inhalation exposure limits for workers, further reinforcing the need for ventilation when foam is freshly expanded. With the exception of the blowing agent, these products do not present an inhalation, ingestion, or contact health hazard unless subjected to operations such as sawing, sanding, or machining that result in the generation of airborne particulates (dusts). Exposure to high dust levels may irritate the skin, eyes, nose, throat, or upper respiratory tract. Inhalation of high amounts of dust over long periods may overload lung clearance mechanisms and make lungs more vulnerable to respiratory disease. [See Section 3 of this SDS for other exposure limit standards for the product ingredients.] Canadian users: LD50 and LC50 data are listed below for those constituent(s) that are available. LC50 LD50 Hodge & Sterner classes mg/(m3 air) mg/(kg body wgt) (inhalation) (oral) Organic Felt Facer: Pentanes 364,000 (rat, inh, 4hr) 446 (mouse, i.v.) relatively harmless insufficient data 42 (mouse, oral) Formaldehyde 400 (mouse, inh, 2hr) 100 (rat, oral) moderately toxic Inorganic Coated Glass Facer: Pentanes 364,000 (rat, inh, 4hr) 446 (mouse, i.v.) relatively harmless insufficient data Formaldehyde 400 (mouse, inh, 2hr) 42 (mouse, oral) moderately toxic 100 (rat, oral) Calcium Not available 64,500 (rat, oral) Insufficient data Relatively carbonate harmless

Potential health effects

Primary Means of Exposure: Inhalation of particulates Secondary Means of Exposure: Eye and skin contact with particulates and inhalation of vapors INHALATION HEALTH HAZARDS: For OSB and wood pulp fiber (generated dust) Acute: Wood dust may cause nasal dryness, irritation, coughing, headache, and sinusitis. The pieces of wood in OSB are bonded together with phenol-formaldehyde resin, which may contain small quantities of residual formaldehyde. Formaldehyde can cause temporary irritation to the nose and throat. Chronic: Repeated exposures (even below 5 mg/m3) to certain wood dusts, such as western red cedar, can be allergenic for some sensitive individuals. OSB used in this product is made from southern yellow pine and other species to which most individuals are not sensitive. Formaldehyde is a probable human carcinogen. Prolonged or repeated breathing of OSB dust should be avoided. If dermatitis, asthma, or bronchitis develops, it may be necessary to remove the sensitized worker from further exposure to OSB dust. Workplace exposure limits are provided in table below. For continuous filament glass fibers in felt facers (generated dust) Acute: Airborne fragments of glass fibers may cause mechanical irritation of the upper respiratory tract, particularly mouth, nose and throat; glass dust may cause transient irritation of the upper respiratory tract. Workplace exposure limits are provided in table below. Chronic: No chronic health effects are known to be associated with exposure to glass fibers. Results from epidemiological studies have not shown any increase in respiratory disease or cancer. The International Agency for Research on Cancer has classified continuous filament fiberglass “Not Classifiable as to Carcinogenicity to Humans” (Group 3). For polyiso foam (generated dust and residual vapor) and carbon black in felt facers (generated dust) Acute: Dust may cause transient mechanical irritation of the upper respiratory tract. Workplace exposures to residual pentanes from this product are expected to be below levels of any health risk. Overexposure to high concentrations of pentane can cause narcotic effects. Signs and symptoms of overexposure to pentane include headache, nausea, dizziness, difficulty walking, or sleepiness. Studies have shown that short-term (10-minute) exposures to pentane concentrations as high as 5,000 ppm (11,750 mg/m3) produced no symptoms. Workplace exposure limits are provided in table below. Chronic: There is no evidence that dusts generated from polyiso foam or felt facers cause disease in humans. Facer dusts containing carbon black pigment are not analogous to the raw carbon black powders for which human carcinogenicity is suspected. No chronic effects are known for exposures to pentane vapor. For limestone and latex in facers (generated dust) – coated glass facers only Acute: Dust may cause transient mechanical irritation of the upper respiratory tract. Workplace exposure limits are provided in table below. Chronic: There is no evidence that dust, containing limestone or latex, causes disease in humans. For polystyrene foam strips (generated dust and residual vapors) Acute: Dust may cause transient mechanical irritation of the upper respiratory tract. In addition to the residual blowing agent that is similar to that used in polyiso foam, polystyrene foam also contains trace concentrations of residual un-polymerized styrene. Workplace exposures to residual styrene from this product are expected to be below levels of any health risk. Workplace exposure limits are provided in table below. Chronic: There is no evidence that polystyrene foam dust causes disease in humans. No chronic effects are known for exposures to pentane, isopentane, or cyclopentane. The styrene monomer residual is classified by the UN’s International Agency for Research on Cancer as “possibly carcinogenic to humans” (Group 2B). EYE CONTACT HEALTH HAZARDS: Acute: Mechanical irritation, redness, tearing, and blurred vision can occur if dusts generated from glass fibers, OSB, and foams come into contact with eyes. Chronic: None known SKIN CONTACT HEALTH HAZARDS: Acute: Direct contact with rough-cut foam or OSB can cause mechanical abrasion cuts or puncture to fingers, hands or exposed skin. Chronic: None known SIGNS AND SYMPTOMS OF EXPOSURE: Irritation of the upper respiratory tract, eyes, and/or skin.

Medical Conditions Generally Aggravated by Exposure

Any condition generally aggravated by mechanical irritants in the air or on the skin. Specific data are not available which address medical conditions that are generally recognized as being aggravated by exposure to this product. CARCINOGENICITY: Ingredient: Textile Fibrous Glass Styrene Monomer Residual NTP: Not Listed IARC: Textile Fibrous Glass = Not Classifiable – Group 3 Styrene Monomer Residual = Classified - Group 2B

Teratogenic Effects

None Reproductive Toxicity: None