Brushes used for epoxies should be cleaned immediately with what cleaner?

• A. Water
• B. Epoxy cleaner
• C. Acetone
• D. All-purpose cleaner

Answer: (B)

Epoxies harden quickly on tools, so cleanup must use a solvent that dissolves uncured epoxy without damaging the brush. An epoxy cleaner is formulated specifically for this purpose, breaking down the resin and washing it from the bristles while keeping them flexible for future use. Water won’t dissolve the epoxy resin and can cause spreading or swelling; acetone can remove some epoxy but is harsher on brush bristles and can leave residues or dry them out; an all-purpose cleaner generally won’t remove uncured epoxy effectively. Cleaning right away with epoxy cleaner preserves the brush and ensures it’s ready for the next epoxy job.