Chemical Compatibility Matrix
Side-by-side compatibility for the most common janitorial chemicals — what NEVER to mix, what's marginal, and the safe substitutions.
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Chemistry × Chemistry — Mixing Rules
Read both directions. Symbols apply to direct mixing AND to sequential application without an intermediate water rinse.
Legend
| Symbol | Meaning |
|---|---|
| OK | Compatible / commonly used together |
| ~ | Use sequentially — full water rinse between applications |
| !! | Avoid — reduces efficacy or degrades chemistry |
| X | DO NOT MIX — hazardous gas, fire, or violent reaction |
| Bleach | Quat | Acid | Descaler | Ammonia | H₂O₂ | PAA | Phenolic | Alcohol | Alkaline | Enzyme | Stripper | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bleach | — | !! | X | X | X | X | X | !! | X | ~ | X | X |
| Quat | !! | — | !! | !! | ~ | ~ | !! | !! | OK | ~ | !! | !! |
| Acid | X | !! | — | OK | X | !! | ~ | !! | ~ | X | X | X |
| Descaler | X | !! | OK | — | !! | ~ | ~ | !! | OK | X | !! | X |
| Ammonia | X | ~ | X | !! | — | !! | !! | !! | ~ | ~ | !! | !! |
| H₂O₂ | X | ~ | !! | ~ | !! | — | OK | !! | ~ | ~ | !! | !! |
| PAA | X | !! | ~ | ~ | !! | OK | — | !! | ~ | !! | X | !! |
| Phenolic | !! | !! | !! | !! | !! | !! | !! | — | OK | ~ | !! | !! |
| Alcohol | X | OK | ~ | OK | ~ | ~ | ~ | OK | — | ~ | !! | ~ |
| Alkaline | ~ | ~ | X | X | ~ | ~ | !! | ~ | ~ | — | !! | OK |
| Enzyme | X | !! | X | !! | !! | !! | X | !! | !! | !! | — | X |
| Stripper | X | !! | X | X | !! | !! | !! | !! | ~ | OK | X | — |
Why this matters: Bleach + ammonia produces chloramine gas. Bleach + acid produces chlorine gas. Both have killed cleaning staff. The matrix above is conservative — when in doubt, rinse and switch products rather than overlap. Do not pre-mix any two cleaning chemistries in a single dispenser, container, or floor scrubber tank unless the product label explicitly instructs it.
Chemistry × Surface — Material Compatibility
Compatibility of common industrial cleaning chemistries with floor, wall, and equipment surfaces. Assumes labeled use-dilution and standard dwell times — undiluted product or extended dwell can shift compatibility downward. Always test in an inconspicuous area before first use on a new surface.
| Surface | Bleach | Quat | Acid cleaner | Descaler | H₂O₂ | Alkaline degreaser | Alcohol | Floor stripper |
|---|---|---|---|---|---|---|---|---|
| Stainless steel | ~ | OK | !! | OK | OK | OK | OK | OK |
| Aluminum / soft metal | X | OK | X | !! | ~ | X | OK | !! |
| Galvanized / zinc | X | OK | X | !! | ~ | !! | OK | !! |
| Sealed concrete | OK | OK | ~ | OK | OK | OK | OK | OK |
| Unsealed concrete | ~ | OK | !! | ~ | OK | OK | OK | OK |
| VCT (vinyl composition tile) | ~ | OK | ~ | OK | OK | ~ | !! | OK |
| Sheet vinyl / LVT | ~ | OK | ~ | OK | OK | ~ | !! | X |
| Ceramic tile / porcelain | OK | OK | OK | OK | OK | OK | OK | OK |
| Natural stone (marble, limestone) | X | OK | X | !! | OK | ~ | OK | X |
| Granite (sealed) | ~ | OK | ~ | OK | OK | OK | OK | !! |
| Grout | OK | OK | !! | ~ | OK | OK | OK | ~ |
| Painted drywall | !! | OK | !! | ~ | ~ | !! | !! | X |
| Wood / sealed wood | !! | OK | !! | ~ | ~ | !! | !! | X |
| Rubber flooring | !! | OK | ~ | OK | OK | ~ | !! | X |
| Epoxy floor coating | ~ | OK | ~ | OK | OK | OK | ~ | !! |
| Polished concrete | !! | OK | !! | ~ | OK | OK | OK | !! |
| Glass / mirror | OK | ~ | OK | OK | OK | ~ | OK | ~ |
| Plastic / PVC | OK | OK | OK | OK | OK | OK | ~ | !! |
Common Failure Modes
| Failure mode | What happens |
|---|---|
| Bleach on aluminum | Pitting and white oxide bloom within 30 minutes at use dilution. Do not use on aluminum saucepans, ice machine parts, walk-in freezer door frames, or aluminum kick plates. |
| Acid on natural stone | Marble, limestone, travertine, and unsealed granite etch within seconds of acid contact. Bathroom acid cleaners are the #1 cause of permanent stone damage in hospitality and luxury residential. |
| Caustic stripper on aluminum or no-wax flooring | Caustic strippers dissolve aluminum and permanently damage sheet vinyl, LVT, and most rubber flooring. Match stripper to floor type per manufacturer recommendation. |
| Quat on glass | Leaves a streak film. Use glass cleaner (typically alcohol-based) on mirrors and windows even when adjacent surfaces are cleaned with quat. |
| Alcohol on VCT wax finish | Dissolves the floor finish and creates a slip hazard. Use only on glass, hard non-finished surfaces, and electronics. |
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