Shelf Life Mousemilk when not exposed to light is a brown liquid with a slight green tint when poured. It has a distinctive toluene solvent odor. The shelf life times are based on product that is stored at temperatures not exceeding 80 degrees and not exposed to direct sunlight.
Closed Container:
After exposure to light for 60 days the oil will develop a light brown tint. The color change does not affect the product effectiveness as a penetrating oil or lubricant. The product remains effective, when stored in a closed container, for 10 years.
Opened Container:
Product will develop light brown tint within 30 days. Airborne particles will contaminate the product and the volatile ingredients will dissipate rapidly. Product will become ineffective as penetrating oil after 30 days.
Batch Number
The quality assurance batch number appears on a small white label (1/2" x 1¾") placed vertically on the back of each 8oz. Bottle, under the bottle sleeve on each 32oz. Bottle and on the imprinted Mousemilk label of each case. The batch numbers are coded with the date of manufacture in the following format:
Batch # ABCDEF where:
A = batch number BC = month of manufacture DE = day of manufacture F = year of manufacture Example: 102211 is from batch #1 mixed on February 21,2001
MSDS1
Warning: This product may contain a chemical known by the State of California to cause health issues. Details found here 
