Live WhatsApp Chat

MEKP Catalyst/Polyester Resin Hardener

Buy MEKP Catalyst/Polyester Resin Hardener at the best prices at UEL RESINS & FIBERGLASS LTD and get delivery in Kampala and other towns in Uganda. 

BUTANOX M-50 CATALYST or Equivalent. Methyl Ethyl Ketone Peroxide MEKP (liquid)BUTANOX M-50 CATALYST or Equivalent. Methyl Ethyl Ketone Peroxide MEKP (liquid) Catalyst used with all our cobalt accelerated resins, add to a max of 4% to speed up gel and cure times during cooler conditions, alternatively reduce additions in warmer conditions to slow gel and cure times.


SKU: CAT-HARD-01 Categories: ,


MEKP (Methyl Ethyl Ketone Peroxide) is the catalyst added to polyester resins and vinyl ester resins. As the catalyst mixes with the resin, a chemical reaction occurs, creating heat which cures (hardens) the resin. Use approximately 1/2 oz per quart of resin. We recommend the use of our MEKP Catalyst Dispenser for accurate measuring and pouring of catalyst.

MEKP Catalyst is a clear, colorless solution of methyl ethyl ketone peroxide in a mixture of dimethyl phthalate and an ester plasticizer. MEKP is principally used as an initiator or catalyst for the room temperature cure of unsaturated polyester and vinyl ester resins. It is also needed with all gel coats. It is typically used between 1.25% to 1.75% (1 2/3 ounce to 2 1/3 ounces per gallon). Resins that have Duratec in their name require a 2% mix ratio (2 2/3 ounces per gallon).

Get a free price quotation on General Purpose Polyester Resin in Uganda by submitting your inquiries using the contact form provided below:


Additional information

Select Size

1KG, 5KG, 20 KG, DRUM – 225 KG