Resins & Gelcoat Liquid Hardener (MEK)

Catalyst for polyester resins and gel coats in a graduated plastic squeeze tube. The graduations are the reason to buy it this way: the tube meters the dose instead of leaving you to count drops out of a bottle, and the two sizes are matched to the batch, 11cc for a quart of resin and 44cc for a gallon.

• Works with all polyester resins and gel coats. Dose according to the directions on the resin or gel coat label, not from memory.
• Graduated tube lets you pour a partial dose accurately for a partial batch.
• Two sizes: 11cc for quart batches, 44cc for gallon batches.
• Not for epoxy. Epoxy takes a matched amine hardener.

Read the SDS before you open it and wear eye protection. Peroxide catalyst in an eye is an emergency room visit, not a rinse-it-out situation.