CAMX 2022 exhibit preview: Polynt Composites

Polynt (Carpentersville, Ill., U.S.) exhibits four resins — Polynt A 6125 IAH, OptiPLUS 40-8091, OptiPLUS KRF100LC-25 and Armorclear 961XK192 — in the Composite One (Schaumburg, Ill., U.S.) Demo Zone at CAMX.

Polynt A 6125 IAH is a new low-profile light resin transfer molding (LRTM) resin exhibiting what is said to be superior surface quality and dimensional stability even at room temperature cure, in addition to rapid demolding. High surface quality is achieved even without the use of fillers. Dimensional stability is achieved due to the proprietary shrinkage control system and low exotherm temperatures during cure. Polynt A 6125 IAH is an easy-to-use one-component system with low viscosity and optimized fiber wetout, the company contends. Fast cycle times enable quick demolding while maintaining mold-quality surfaces using standard methylethylketone peroxide (MEKP) initiators.

OptiPLUS 40-8091 LPA infusion tooling resin is part of Polynt’s OptiPLUS line and enables near-perfect master mold replication even at 70% fiber content, according to the company. Tools made with this technology exhibit high strength and improved dimensional stability. A high glass transition temperature (T_g) also supports tools in a variety of demanding conditions.

OptiPLUS KRF100LC-25 is a pre-promoted Bisphenol A vinyl ester resin specifically designed for low-color applications where transparency with glass and carbon fiber would be desirable. Polynt says the resin not only offers the traditional strength, corrosion resistance and temperature resistance of Bisphenol A vinyl esters but now provides a cured laminate to have an additional clear and transparent quality.

To illustrate this, the upper half of a mold will be in the Demo Zone to showcase how the low-color cured system can be used to allow resin flow visibility when creating composite parts in a closed system tool. Also, the upper mold will feature Polynt’s clear gel coat, Armorclear 961XK192, which is said to offer clarity, improved toughness, and ease of processing. Polynt notes that the combination of thw ultra-clear gel coat and OpitPLUS KRF100LC-25 can create the desired prospect of being able to see resin flowing through closed mold tools and giving the composite manufacturer more certainty about resin fill, flow and wetout.