Oral LD50 (Rat): Greater than 15,800 mg/kg, Practically Nontoxic

Dermal LD50 (Rabbit): Greater than 7,940 mg/kg, Practically Nontoxic

Eye Irritation (Rabbit, 24-hr): 3.5 on a scale of 110.0, Slightly Irritating

Skin Irritation (Rabbit, 24-hr): 0.0 on a scale of 8.0, Nonirritating

Vapor Inhalation (Rat): Rats were exposed to a stream of air passed through the lubricant and

led directly into the experimental chamber. Due to its low volatility, there was essentially no

vaporization of the test material and the animals survived both the 6-hour exposure and

subsequent 10-day observation periods without observable effects.

12. ECOLOGICAL INFORMATION

MCS-2080A had a primary degradation rate of 7% to 21% in a 24-hour semi-continuous

activated sludge test (SCAS). Biodegradability of this material was classified as slow to

resistant.

Oral LD50 Mallard Duck: Greater than 4,640 mg/kg, Practically Nontoxic

Oral LD50 Bobwhite Quail: Greater than 4,640 mg/kg, Practically Nontoxic

96-hr LC50 Fathead Minnow: Greater than 1,000 mg/l, Practically Nontoxic

The bioaccumulation potential in bluegill sunfish was measured over a 32-day period. It was

determined that this material has a moderate potential to bioaccumulate in this aquatic species.

13. DISPOSAL CONSIDERATIONS

This material when discarded is not a hazardous waste as defined by the Resource,

Conservation and Recovery Act (RCRA), 40 CFR 261. Dispose of in accordance with all federal,

state and local environmental regulations. Recommended method of disposal is by high

temperature incineration in a RCRA approved TSDF. If there are any questions regarding the

disposal of this material, please consult the Environmental, Health & Safety Department of Arch

Technology Holding LLC at 636-946-2355.

Hazard Class:

This material is not classified as a hazardous material by the U.S. Department of Transportation

(DOT) or by the International Air Transport Association (IATA).

15. REGULATORY INFORMATION

SARA Hazard Notification Hazard Categories Under Criteria of SARA Title III Rules (40 CFR

Part 370): Immediate

Section 313 Toxic Chemical(s): Not Applicable