Y-109 flame retardant provides outstanding thermal stability and electrical performance. It is particularly suitable for engineering plastic applications such as polyesters (PET, PBT, PCT) and polyamides (nylons). TY-109 flame retardant has outstanding thermal stability. It is an ideal choice for high temperature applications such as engineering plastics. Due to its stability, it can often be used where other flame retardants fail to survive. Due to its polymeric structure, TY-109 flame retardant is non-blooming in all applications. Excellent electrical properties provide yet another reason to choose this flame retardant for demanding engineering plastic applications.