EPA Reg. 10324-81Q-San
Food-contact quaternary sanitizer, no-rinse, USDA-aligned
Q-San
Q-San is a concentrated quaternary-ammonium sanitizer and deodorizer for use on washable, hard, non-porous food-contact surfaces. Used at labeled dilution, treated surfaces are allowed to drain and air dry with no potable-water rinse required.
The workhorse sanitizer for dishes, glassware, silverware, cooking and eating utensils; plastic and non-porous cutting boards; food-processing equipment (slicers, saws, peelers, conveyors, filling equipment); beverage dispensing equipment, fermentation and holding tanks, ice machines, and refrigerated equipment.
What makes Q-San different
- Food-contact, no-rinse sanitizer. No potable-water rinse required before food production resumes — saves time and water on every shift change.
- Fast 1-minute contact time. Effective at 150, 200, or 400 ppm active quat in as little as one minute.
- Broad food-safety kill list. Effective against E. coli (including O157:H7, O26:H11, O111:H8, O145:H28), Salmonella, Listeria monocytogenes, MRSA, VRE, Campylobacter jejuni, Yersinia enterocolitica, and Staphylococcus aureus.
- Surface-friendly. Compatible with stainless steel, aluminum, glass, glazed porcelain, plastic — the standard surfaces in food handling.
- Concentrate economy. One ounce sanitizes 4 gallons at 150 ppm — pennies-per-gallon working cost.
Dilution + contact time
- 150 ppm sanitizer: 1 oz per 4 gallons of water — 1 minute wet time
- 200 ppm sanitizer: 1.36 oz per 4 gallons — 1 minute wet time
- 400 ppm sanitizer: 2.67 oz per 4 gallons — 1 minute wet time
- Water quality: Effective in water up to 500 ppm hardness with 5% soil
Use directions
- Remove gross food particles by pre-flushing, pre-scraping, and pre-soaking as needed.
- Thoroughly wash with a compatible detergent or cleaner (Q-San is a sanitizer, not a cleaner — use Da-Clean A.P.C. or another approved cleaner first).
- Rinse thoroughly with potable water.
- Immerse or wet the surface with Q-San use solution.
- Keep surface wet for at least 1 minute.
- Allow to drain and air dry — do not rinse.
Prepare fresh solution daily or when visibly dirty.
What it isn't for
Not a cleaner — apply after cleaning. Not a hospital-grade disinfectant.
Product details
- EPA Reg. No.: 10324-81
- Color / Fragrance: Clear / No fragrance
- Chemistry: Quaternary ammonium concentrate
- Package: 4x1 gal, 5 gal, 55 gal
- SDS: DMN0819
This description is a summary and does not replace the EPA-registered product label. Refer to the SDS and Technical Data Sheet in the Documentation tab for full sanitizing claims, safety information, and use directions.
What it isn't
Not a cleaner — wash and rinse with an approved detergent first. Not a hospital-grade disinfectant. Always verify ppm with quat test strips.
Surface compatibility
Tested at label concentration on common facility surfaces. For uncommon substrates, request a compatibility test from your Damon rep.
Surface compatibility
Application directions
Step-by-step instructions. Read all steps and any caution-flagged steps in full before starting.
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1
Pre-clean the surface
Wash food-contact surfaces with an approved detergent (such as Da-Clean A.P.C.) and rinse with potable water before sanitizing.
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2
Mix to labeled use concentration
Mix Q-San with potable water at the labeled food-contact sanitizer concentration. Verify ppm with quat test strips.
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3
Apply and contact
Apply to pre-cleaned surfaces by spray, immersion, or wiping. Keep wet for the labeled contact time.
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4
Drain and air dry
Allow to drain and air dry. No potable-water rinse required when used at the labeled sanitizer concentration.
Documentation
Audit‑ready PDFs. Use these for Joint Commission / CMS / OSHA compliance.
OSHA HazCom · DMN0819
Q-San · Rev 07/15/26
