Impact Modifier

Impact Modifiers are substances that increase the durability of moulded or extruded plastics, especially those that need to be constantly subjected to impact forces like cold weather. They are added to compounded materials to provide performance features. They provide strength and break resistance to the product for which they are added. They also provide rigidity to the product to prevent it from wrapping or sagging during everyday use. Impact Modifiers also provide various properties to the product like optical and tensile strength, weatherability, processability, flammability, and heat distortion. Impact Modifiers are of different types depending on the product they are added into like Precipitated Calcium Carbonate for PVC etc. Impact Modifiers are elastomeric or rubbery in nature which is why they can absorb the energy of an impact or dissipate it.