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Product Details
MEKP Liquid Hardener
MEKP is composed of methyl ethyl ketone peroxide, a catalyst, added to polyester and vinyl resins.
When MEKP is mixed with the resin, the resulting chemical reaction causes heat to build up and cure or harden the resin.
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1 – 2 of 3 Reviews
Most Recent
West Point, VA
5 out of 5 stars.
It MEKP …
9 months ago
This is one of those products that is simple to use and hard to master … but that doesn't say anything about this specific product. My order was fresh and does was it supposed to do in hardening gelcoat.
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pensacola florida
4 out of 5 stars.
just what I needed to complete my projec
11 years ago
I am impressed with the companies concern and involvement with people and 'the bottom line' isn't only monetary. They freely give advice and I appreciate having the opportunity to tap their knowledge base, be it 'suggested products' or telephone conversation. Their prices are competitive.their variety of products are quality and delivery is prompt. I look forward to continuing involvement with this companies high standards and new products they offer in their catologs.
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1 Ratings-Only Review
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1 - 7 of 7 Questions
Q: will mek hardener catalyze epoxy?
8 months ago1 Answer
A: MEKP is intended to be used with polyester resins, and gelcoat. It will not work to catalyze epoxy.
8 months agoHelpful?
Q: I still need to know if this is 1% or 2% mekp. The difference is 100% - and I am using for surfboard glassing repair in often very very small batches. Sometimes thinned out with styrene. Not boat work. In larger batches.So yeah it's critical. Don't want an answer unless it's yeah 1% or 2% answer. Jamestown hello?
2 years ago1 Answer
A: Hi Josh, you should have received an email from Paul directly. If you haven't please email us at info@jamestowndistributors.com and put Attn Paul in the subject line. Thanks
2 years agoHelpful?
Q: is this 1% or 2% MEKP? very critical!! the most important fact on MEKP!
2 years ago2 Answers
A: I don't worry about 1% vs 2% mekp…. I've always added cobalt napthanate to my mix… Seriously, when we got a new batch of resin, hardener or both, we did a sample mix, quantities based on previous material lot. We just adjusted up or down based on set time. Did the same test for hand mix or chopper gun layup… How old would you be if you didn't know how old you are?
2 years agoHelpful?
Q: can i use this to help minnwax Pollycrylic cure harder i use another product called dyepress pollygloss to treat tiles so i can sublimation print on them it looks like smells like pollycrylic except they give you a small bottle to add 3 mill to 1 oz to harden it then when dry you put in oven at 340 for 15 minutes its really expensive and if its the same as pollycrylic i could save 100s of dollars
4 years ago1 Answer
A: JD does not carry any of those products and we cannot advise you on how MEKP will work. You would have to try it out yourself on a test panel. If it works it will be worth the effort.
4 years agoHelpful?
Q: will mekp work as a hardener for polyacrylic ?
4 years ago1 Answer
A: MEK catalyst is used with polyester resin, vinyl ester resin and gel coat.
4 years agoHelpful?
Q: i have a small repair to the gelcoat of my 20foot scout .I got the paint from scout but do not known how much mek peroxide to add to 2oz of the paint?
12 years ago1 Answer
A: You add 2-3 teaspoons of mekp catalyst per quart of gelcoat. Two teaspoons will give you a 15-20 minute gel time, and 3 teaspoons will give you 10 minutes (rated at about 77¥Ë_¥Ë_¥Ë_F). Depending on the temperature it will vary, here in RI I would use definitely use 3 teaspoons at this time of year, also in general to make sure that you get a proper full cure. Thank you.
12 years agoHelpful?
Q: What should be the standard resin(unsaturated polyester) hardner ratio? What is the viscosity of MEKP?
12 years ago5 Answers
A: The ratio is dependent of the temperature. Optimal temperature for applications is 70 deg F. At that temp, 1 oz resin to 2 drops of Hardener, with a cure time of 10 minutes. At 60 deg F, it should 4 drops per 1 oz resin and will take about 30 minutes to harden. Below 60 degrees, I have found it eventually hardens, but does not bind to the repair surface. At 80 and above I use 1 drop/1 oz resin, but have to work really fast. Its best to plan your work, and act when the temp is optimal. This is applicable for resin only, or resin/cabosil mix. The viscosity of MEKP is like water, so it turns the gel from pasty to wet..
12 years agoHelpful?