High aspect ratio talcs can impart a range of benefits to plastics, from added toughness to flame retardancy. Our HAR range provides superior stiffness and excellent dimensional stability to polypropylene and engineering thermoplastics. This is ideal for applications where weight is crucial, such as the automotive industry, packaging and electronic goods. 

HAR talcs are produced using our patented de-laminating process, which results in significantly higher aspect ratios than conventionally micronized talcs. Used in automotive engineering, they allow manufacturers to make thinner parts that help make cars lighter, improving fuel economy and decreasing emissions.

They’re ideal for car bumpers, rockers and fenders; high impact resistant interior parts like dashboards, door pillars and interior trim; for food packaging applications where barrier properties are crucial; and for household appliances and electronics. 

HAR talcs are also an excellent solution for flame retardant formulations due to the effect of their high aspect ratio on char and barrier properties. This results in a reduced rate of heat and mass transfer, and therefore better flame retardancy.

In summary, HAR talcs also provide excellent performance in automotive parts in terms of:

- Dimensional stability, leading to lower mold shrinkage and Coefficient of Linear Thermal Expansion (CLTE), which is ideal for zero-gap designs

- Increased flexural modulus (about 20% higher than micronized fine talcs) 

- Improved heat distortion temperature (HDT)

HAR talcs are particularly recommended for automotive parts such as: 

- Exterior parts: bumpers, rockers and fenders

- High impact resistant interior parts: dashboards, door pillars and interior trim

Key benefits:

- Scratch & mar resistance