https://www.avient.com/news/avients-new-edgetek-materials-optimize-weld-strength-flame-retardance-and-aesthetics-laser-welded-applications
In general, flame retardants and colorants often impede the energy needed to melt the polymer during joining, possibly reducing weld strength.
Avient’s portfolio of laser weldable materials also includes multiple resin options based on polyamide 66 (PA66) and polybutylene terephthalate (PBT).
https://www.avient.com/sites/default/files/2023-12/Cesa Light Additives for Injection Molding Product Bulletin.pdf
The additive concentrates can be customized to include colors and/or other additives, e.g., flame retardants, antistatic or laser marking additives.
BENEFITS • High additive loading for optimal UV stabilization • Solutions available for a large number of injection molded polymers including PP, PE, PS, HIPS, ABS, SAN, PA (nylon), PBT, Co-PET, PC, POM and TPU • Can be combined with colors and other additives in Smartbatch™ solutions • Formulations can be customized to meet specific regulatory compliance, e.g., EU and US food contact, toy, UL 94 recognition PRODUCT BULLETIN Copyright © 2023, Avient Corporation.
Source: Avient internal testing 1.844.4AVIENT www.avient.com PERFORMANCE The following chart shows the efficiency of Cesa Light Additives in minimizing color variations induced by long sunlight exposure.