L-365 Cleaning & Deburring Compound

L-365 is a heavy duty liquid alkaline cleaner formulated to be used on most ferrous and nonferrous metals. It is a blend of potent wetting and dispersing agents meticulously combined with a highly refined alkaline build. Together they effectively penetrate and remove a wide range of oily soils and promote optimum metal finishes.

Physical Properties

Appearance: Yellow Liquid
pH @ 1% Solution: 11.6
Odor: Mild
Foaming Action: Controlled
Solubility in Water: Complete
Rinsing Action: Excellent
Metal Safety: Ferrous and Nonferrous Metals
Flash Point: None
Refer to our Material Safety Data Sheet for additional information.

Usage and Dilution Instructions

For tumbling and vibratory finishing operations use 1/2 to 1 ounce per gallon of water. For Automated spray application parts washers use 1 to 2 ounces per gallon of water. Agitated and ultra sonic soak tanks use 1 to 3 ounces per gallon of water. Parts washers should maintain operating temperatures between 100° and 130° F. to maintain optimum cleaning and foaming characteristics. Due to the fact that this is a very highly concentrated product, using higher than recommended product concentrations may decrease cleaning efficiency rather than improve it. Consult your representative for specific recommendations.

Handling and Storage

This product does not pose any fire hazards. L-365 is an alkaline product. Avoid contact with skin, eyes, and clothing. In case of skin contact, flush with water for 15 minutes and consult physician if irritation develops. In case of eye contact, flush eyes with plenty of water for a least 15 minutes and consult physician. Use good industrial hygiene practices such as wearing chemical safety glasses, rubber gloves, impermeable apron and other appropriate protective clothing. Store product in tightly closed containers between 50° and 85° F. Rotate stock. When stored as stated above, shelf life is a minimum of 2 years.


Progress Chemical guarantees its products will perform to your satisfaction when used in accordance to our recommendations. We back this guarantee with over 65 years experience. Our company has been certified to ISO 9001-2015 Quality Standards.