HIPS high impact polystyrene is impact-modified polystyrene with dispersed polybutadiene rubber microphase inside polystyrene matrix, solving fatal brittleness defect of GPPS while retaining polystyrene advantages of good dimensional stability, easy processing and low cost, becoming mainstream economical structural plastic for mid-grade injection structural housings. Linkwin precisely controls rubber content, rubber particle size distribution and grafting degree for HIPS resin to stabilize notched impact strength, prevent poor impact toughness, surface matte spots and uneven blending problems caused by inferior HIPS products. Properly dispersed rubber micro-particles absorb impact energy to resist crack propagation under external collision, enabling finished products to pass drop test without fragmentation; meanwhile HIPS maintains good rigidity and molding fluidity suitable for complex thin-wall shell high-speed injection production, with easy painting, silk-screen printing and adhesive bonding post-treatment performance.

Home appliance & electronic industry is core HIPS consumption market: television rear covers, monitor housings, wireless router casings, power adapter shells, electrical junction boxes, air conditioner internal structural supports and small household appliance outer casings. Toy industry uses HIPS for large toy shells, building block components, ride-on toy structural parts and collision-resistant toy assemblies. Packaging field produces impact-resistant plastic shipping boxes, instrument protective casings and thick-wall disposable containers. Formulation compounding factories blend HIPS with GPPS to customize intermediate toughness grades, balancing transparency requirement and anti-drop performance while optimizing raw material comprehensive cost. Many overseas injection manufacturers frequently face unstable impact value, easy cracking after falling, surface uneven matte spots and poor paint adhesion from low-quality HIPS supplies; our stable polymerization modification technology and pre-shipment full mechanical testing completely eliminate these production defects, lowering finished reject rate and improving product market durability competitiveness.

Test Item	Specification Standard
Product Name	Virgin HIPS High Impact Polystyrene Pellets
Grade Type: General High Impact Injection Molding Grade
Appearance	Opaque Ivory White Cylindrical Resin Pellets
Key Controlled Index	Melt Flow Index, Notched Izod Impact Strength, Rubber Dispersion Uniformity, Speck Impurity
Core Application	Home appliance & electronic enclosure injection, anti-drop toy parts, structural packaging boxes, GPPS toughening blending modifier
Supporting Certificates	Batch COA, MSDS, mechanical impact performance test report
Packaging Option	25kg Woven Bag, Jumbo Bag Bulk

Standard packaging is 25kg woven bag, jumbo bag bulk shipment available for large-volume long-term orders to reduce unit logistics expenditure. We maintain year-round sufficient inventory reserves to shorten order lead time and prevent injection line shutdown caused by HIPS resin shortage. Complete export documents including batch COA, MSDS, melt index & notched impact test certificates can be issued rapidly to streamline modified polystyrene import customs clearance globally. Our sales team can tailor accurate FOB and CIF quotations based on impact grade specification, order quantity and destination port, support free sample trial injection test before bulk purchase, and provide GPPS/HIPS blending proportion technical consultation. Cooperating with Linkwin for HIPS procurement stabilizes your structural part toughness consistency, simplifies post-processing operation and builds long-term cost competitive advantage in modified polystyrene raw material market.