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BYK USA (Wallingford, Conn., U.S.) has developed an ultraviolet (UV) stabilizer masterbatch developed for polyamides and polyolefin compounds, including fiber-reinforced systems (glass, carbon or natural fibers, mineral fillers such as talc or wollastonite, and flame retardants like ATH or MDH). The additive ensures long-term protection of a part’s mechanical and aesthetic properties under intense UV exposure, minimizing degradation, discoloration and gloss loss.

Based on their mechanical strength, temperature resistance and versatility, polyamides are considered indispensable in many sectors — from automotive, construction, consumer and leisure to fibers and textiles — though UV radiation causes its own challenges, leading to deteriorated properties and surface quality.

BYK-MAX LS 4128 addresses this challenge with a synergistic additive of highly concentrated stabilizers that effectively hinders light-induced degradation processes in the polyamide. In doing so, the additive acts as a radical catcher and peroxide decomposer, protecting both the visual and the mechanical properties of the materials.

The BYK product is a granulated, organic UV stabilization system especially well suited for outdoor applications. Moreover, the high level of active ingredients it contains minimizes the need for carrier resins, thereby reducing overall costs for customers.