Adstif

Adstif is a high-crystallinity polypropylene family positioned where standard PP runs out of stiffness. Conventional Ziegler-Natta homopolymer PP typically sits around 1200–1500 MPa tensile modulus; Adstif's chemistry lifts that into the 1600–2300 MPa band while keeping the density advantage of polyolefins. Genesis Polymers distributes three Adstif grades covering automotive compounding, rigid food containers, housewares and high-stiffness technical parts.

The high-crystallinity chemistry pushes three properties at once: stiffness climbs, heat deflection temperature climbs, and cycle times shorten because the nucleated grades crystallise rapidly during cooling. For parts where mineral-filler-level rigidity is the design target but the weight and compounding step of filled PP are undesirable, Adstif can serve as a single-component alternative, giving a cleaner scrap stream and preserved polyolefin recyclability.

Where Adstif is used

• Automotive compounding: interior and exterior parts where high stiffness and heat deflection temperature are the primary requirements

• Rigid food containers: thermoformed and injection-moulded containers that need dimensional stability through hot-fill or microwave reheating

• Housewares and high-gloss consumer products: injection-moulded parts where surface gloss straight from the mould matters

• Technical injection mouldings: thin-wall parts where warpage control and cycle time both need attention

• Caps, closures and furniture components: high-stiffness injection mouldings where heat resistance is a selling point

Adstif technical profile

The high-crystallinity matrix is the brand's technical centre of gravity. Tensile modulus reaches 2300 MPa on the homopolymer grade, well beyond standard PP and competitive with some mineral-filled compounds. Vicat softening temperatures sit around 153–158 °C, enabling thermoformed food containers and warpage-sensitive automotive parts to hold their geometry under service conditions that would deform conventional PP.

Nucleation is the second pillar. Rapid, controlled crystallisation during cooling lets converters run higher part-ejection temperatures, shorter injection cycles and tighter dimensional control on thin-wall geometries. Impact strength is modest versus standard PP, so Adstif is specified where stiffness is the key design driver.

The Adstif grade range

Adstif HA840R: high-crystallinity homopolymer Nucleated homopolymer, tensile modulus 2300 MPa, tensile stress at yield 41 MPa, MFR 20 g/10 min, Vicat softening 158 °C. The stiffest grade in the range, designed for rigid injection-moulded food containers, housewares, caps and closures and furniture components where maximum rigidity and high mould-line gloss are both requirements. High crystallinity supports short cycle times and low post-processing.

Adstif EA600P: high-crystallinity impact copolymer Tensile modulus 1600 MPa, density 0.90 g/cm³, MFR 18 g/10 min, notched Charpy 5.5 kJ/m² at 23 °C. Engineered for automotive compounding: delivers lightweight, rigid part design with a balanced stiffness-to-toughness profile. Processes on standard PP equipment at 200–240 °C barrel temperatures.

Adstif EA648P: high-stiffness impact copolymer (mineral-filler alternative) Tensile modulus 1750 MPa, Charpy notched 6.5 kJ/m² at 23 °C, MFR 18 g/10 min, density 0.90 g/cm³. The single-component alternative to mineral-filled PP compounds. Achieves high gloss directly from the mould for electrical appliance housings, caps, closures, furniture components and household goods where stiffness-plus-surface-quality is the brief.

Choosing the right Adstif grade

Frequently asked questions about Adstif

What is Adstif used for? Adstif is used where standard polypropylene runs out of stiffness: automotive compounding, rigid food containers, housewares, high-gloss consumer parts, caps and closures, and technical injection mouldings. The range covers tensile modulus from 1600 to 2300 MPa with Vicat softening up to 158 °C.

How is Adstif different from standard polypropylene? Adstif uses a high-crystallinity chemistry with nucleation, which lifts tensile modulus into the 1600–2300 MPa band (against roughly 1200–1500 MPa for conventional Ziegler-Natta homopolymer PP) and raises heat deflection temperature. The nucleated grades also crystallise rapidly on cooling, which shortens injection cycles and tightens dimensional control on thin-wall parts.

Which Adstif grade has the highest stiffness?Adstif HA840R is the stiffest grade in the range, with tensile modulus of 2300 MPa, tensile stress at yield of 41 MPa, MFR 20 g/10 min and Vicat softening temperature of 158 °C. It is specified for rigid injection-moulded food containers, housewares, caps and closures and furniture components.

Can Adstif replace mineral-filled PP compounds?Adstif EA648P is positioned as a single-component alternative to mineral-filled PP, with tensile modulus of 1750 MPa and notched Charpy of 6.5 kJ/m² at 23 °C. Converters gain a cleaner scrap stream and preserved polyolefin recyclability, without the weight penalty and compounding step of filled PP.

When should I choose Adstif over Hifax or Moplen?

• Adstif: when stiffness and heat resistance are the primary design drivers

• Hifax: when impact toughness is the priority

• Moplen: for mainstream homopolymer, random and impact copolymer PP across a broader MFR range

Sister polypropylene brands

For mainstream homopolymer, random and impact copolymer PP across a broader MFR range, see Moplen. For reactor-TPO impact copolymers where impact toughness is the priority over stiffness, see Hifax. For metallocene PP with narrow MWD, see Metocene. For healthcare-grade PP, see Purell.