Curing Agents

MEKP Catalyst (Methyl Ethyl Ketone Peroxide)

Methyl Ethyl Ketone Peroxide (MEKP) is the industry-standard curing agent for unsaturated polyester and vinyl ester resins. As a highly effective initiator, MEKP plays a critical role in catalysing the crosslinking reaction at ambient temperatures, transforming liquid resins into solid thermoset composites. Its compatibility with a wide range of resin systems — including orthophthalic, isophthalic, terephthalic, and vinyl ester — makes it an essential component in marine, construction, automotive, and industrial FRP applications. Known for its consistent performance and ease of use, MEKP ensures a reliable and controlled curing process that delivers optimal laminate strength and surface finish.

More Info

Cobalt Octoate (Co‑Oc) Promoter – 6%

Cobalt Octoate is a highly effective promoter used to accelerate the curing of unsaturated polyester and vinyl ester resins, especially when paired with MEKP catalysts. Supplied as a 6% violet liquid, it plays a critical role in initiating the polymerisation reaction at ambient temperatures, ensuring fast and controlled gelation. By enhancing the reactivity of peroxide catalysts, Cobalt Octoate helps reduce curing time and improves the efficiency of hand lay-up, spray-up, and casting processes. With a viscosity of under 40 seconds (at 30 °C) and specific gravity around 0.91, it offers excellent stability and ease of handling. This promoter is essential in achieving consistent cure profiles across a wide range of FRP applications.

More Info

Dimethyl Aniline (DMA) Accelerator

Dimethyl Aniline (DMA) is a powerful secondary accelerator used in unsaturated polyester and vinyl ester resin systems. It is especially effective when used in combination with cobalt-based accelerator like Cobalt Octoate, offering enhanced control over gelation and cure rates. DMA is particularly beneficial in low-temperature environments, where standard curing systems may slow down or stall. By boosting the reactivity of the catalyst-promoter pair, DMA ensures faster hardening, improved surface finish, and consistent cure profiles—making it ideal for cold climate processing, winter production cycles, or where faster demoulding is required. Its use enables fine-tuned adjustments to working and curing times without compromising the integrity of the final laminate.