Bottom line: After April 28, 2026, most commercial and industrial paint-stripping uses of methylene chloride (MeCl / DCM) are federally prohibited. If your shop still uses aircraft stripper, gun-cleaner solvents, or wipe-down products containing methylene chloride, you have a hard deadline to switch.
What the rule actually says
The EPA finalized this rule under the Toxic Substances Control Act (TSCA Section 6(a)) in April 2024. Consumer sale of methylene chloride paint strippers ended back in 2019. This new rule closes the commercial and industrial loophole:
- Prohibited after April 28, 2026: manufacture, processing, distribution, and use of methylene chloride for most commercial and industrial applications including paint and coating removal.
- Narrow exceptions exist for specific critical uses (aviation, some federal facilities, certain safety applications), but they require a Workplace Chemical Protection Program with air monitoring, respirator use, and documented safety officer supervision.
- Downstream users — auto body shops, refinishers, MROs, industrial coating operations — do not qualify for those exceptions in typical use.
Why paint booth shops are affected
Methylene chloride shows up in more products than most shops realize:
- Aircraft-grade paint strippers used on aluminum and composite parts
- Some spray-gun cleaning solvents (check the SDS)
- Adhesive removers and prep degreasers
- Certain heavy-duty wipe-down products
Even if you don't spray strippers in the booth, MeCl-containing products used anywhere in the shop trigger the same substitution requirement.
What to do before April 28, 2026
- Audit your chemistry. Pull SDS sheets for every stripper, cleaner, degreaser, and gun-solvent in the shop. Look for CAS# 75-09-2 (methylene chloride / dichloromethane / DCM) in Section 3.
- Identify substitutes. Common compliant alternatives include benzyl alcohol blends, formic acid blends, soy/citrus-based strippers, and dibasic-ester (DBE) formulations. Performance varies — you may need to test 2-3 products for your specific coatings.
- Plan your changeover. Alternative chemistry often has slower dwell times and different disposal requirements. Update SOPs and re-train painters before the switch, not during a rush job.
- Dispose of remaining MeCl inventory properly. Follow your state's hazardous waste rules — do not pour, do not evaporate off, do not mix with other solvents.
- Document the transition. Keep records of your substitution decisions. Insurance carriers and OSHA inspectors are already asking.
Compliant alternative product families
These are chemistries that meet the substitution requirement. Specific brand availability changes; contact us for current sourcing:
- Benzyl alcohol / formic acid blends — closest performance match for aircraft-grade stripping
- Dibasic ester (DBE) strippers — slower dwell, low VOC, biodegradable
- Soy and citrus-based strippers — best for light coatings and touch-up work
- Alkaline hot-tank chemistries — batch stripping of parts
- Media blasting — where mechanical prep can replace chemical stripping
Note: N-methylpyrrolidone (NMP) is being restricted under a separate EPA rule finalized 2024 and should NOT be used as a MeCl substitute in most operations.
What this doesn't change
The MeCl rule sits on top of the existing NESHAP 6H filter requirements — it doesn't replace them. Your booth still needs ≥98% capture exhaust filters, documented change-outs, and compliant intake media. See our NESHAP 6H Compliance Hub for the filter side.
Need help sourcing compliant chemistry?
We're actively bringing compliant stripper and prep-chemistry SKUs into the Spray Booth Shop catalog. If you use a specific MeCl product today and need help finding the right substitute, tell us what you use — we'll help you spec and source.
Call (800) 381-0149 or email orders@sprayboothservices.net.
Sources: EPA final rule on methylene chloride, 89 FR 39254 (May 8, 2024); TSCA §6(a); EPA compliance guide for downstream users, 2025 update.
This page is educational, not legal advice. Check with your state environmental agency and your insurance carrier for site-specific requirements.