Polyester hardener (MEKP)

Polyester hardener (MEKP)
Polyester hardener (MEKP)
  • MEKP hardener for polyester
  • Dosage 1.5% to 3%
  • Dispensers are available

The well-known liquid MEKP (Methyl Ethyl Ketone Peroxide) hardener for polyester resins, gelcoats and topcoats is mixed with cobalt accelerator. You can easily and safely measure the amount of polyester hardener with a MEKP dispenser.

How much Polyester hardener do you need?

You dose the right amount of MEKP hardener depending on temperature and amount of resin. We use a percentage of 2% as a guideline. For universal polyester resin, this gives a processing time of about 30 minutes (at 20℃). Only make an amount that can be processed whithin 10 minutes and stick to the recommended dosage of the product.

Product properties

Additive: 1.5 to 3%
Size: 20 gr, 100 gr, 400 gr, 1 kg, 5 kg
Suitable for: polyester resin, laminating resin, polyester casting resin, gelcoattopcoat, vinylester resinmoulding resin and gelcoat putty.

We have a number of recommendations for working safely with polymers. At Polyestershoppen you will not only find the polymers themselves, but you can also purchase all the protective equipment you need from us. If you have any doubts or questions, please contact our customer service. We can give you advice on how to work safely with polymers.

Safety equipment


Code Description
H242 Heating may cause a fire.
H314 Causes severe skin burns and eye damage.
H302+H332 Harmful if swallowed or if inhaled.
P101 If medical advice is needed, have product container or label at hand.
P102 Keep out of reach of children.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower].
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P405 Store locked up.
P501B Dispose of contents/container in accordance with in accordance with local regulation

Product Choices

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