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Butanox

Butanox® - The highest quality methyl ethyl ketone peroxide (MEKP) on the market

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3D representation of peroxide molecules forming a chain structure

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Unsaturated polyester resin curing is a process to make thermoset composites from polyester. Watch this educational 3D video-animation and see how the unsaturated polyester resin curing process works, nicely illustrated with some everyday life examples of polyester thermoset composites.

Butanox® world’s leading brand of methyl ethyl ketone peroxide (MEKP)

MEKP products are used for the curing of thermoset resins and coatings.

Butanox® peroxide is an essential component for curing polyester composite materials such as pipes, wind turbine blades, bridges, yachts, chemical storage tanks and many other valuable end products. Butanox® product is recognized as the best and most reliably MEKP by the world’s leading composite manufacturers and users of unsaturated polyester resins (UP).

Butanox® MEKP has a consistent high quality and guaranteed low water content and can be used across the entire range of applications and reactivities of commercially available UP and vinyl ester (VE) resins. Butanox® M-50 product is the leading MEKP in our portfolio.

Product categories

White yacht moving fast in sea

Thermoset composites

Curing agents for unsaturated polyester resins, vinyl ester resins and (meth)acrylate resins.
Blue PVC pipes with backlight

Organic peroxides

Classes like ketone peroxides, diacyl peroxides, peroxyesters, hydroperoxides and more.

Featured products

Organic peroxides

Butanox M-50

Butanox® M-50 is a medium-reactive, general purpose MEKP with low water content.

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Organic peroxides

Butanox M-50 VRN

Butanox® M-50 VRN is a high reactive, general purpose MEKP with low water content, including a Vanishing Red (VR) indicator system.

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Organic peroxides

Butanox LPT-IN

Butanox® LPT-IN is a general purpose MEKP for extra long geltimes in standard orthophthalic resins, and the product choice for curing vinylester resins.

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Organic peroxides

Butanox P-50

Butanox® P-50 is a special ketone peroxide for fast curing of laminates and gelcoats.

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Search all Butanox products

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Green silos on production site

Cobalt-free curing of polyester storage tanks

Nouryon successful with food-contact compliancy certification for cobalt-free curing.

Download your documents

Thermoset brochure (EMEIA)

Overview of our Thermoset products in Europe, Middle East, India and Africa

Type: Brochure
Language: English
Format: pdf | 912.9 KB
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Download

Thermoset brochure (NAR)

Overview of our Thermoset products in North America

Type: Brochure
Language: English
Format: pdf | 1 MB
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Download

热固性树脂固化剂 (Chinese)

中国热固性产品概览

Type: Brochure
Language: Chinese
Format: pdf | 1.1 MB
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Download
Worker in protective clothing performing spray-up technique by using Vanishing Red (VR) formulation

Vanishing Red - small red investment for a better profitability

Butanox® M-50 VR is a colored peroxide allowing users to check the flow of the peroxide in the dosing line and initial cure within a laminate. Failures can be instantly detected and once the color disappears, you know the cure is finished.

Learn more about Vanishing Red (VR(N))

Discover more about Vanishing Red (VR)

A close-up view of the front of a white yacht

Butanox® M-50 VRN reveal

Nouryon launches improved Vanishing Red peroxide for the composites market.
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Butanox® is a registered trademark of Nouryon Functional Chemicals B.V. or affiliates in one or more territories.

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