Plastic Sheet
Food Containers
Sealing Film
Food Packing Machinery 
One-Stop Solutions Product Categories
- All Plastic Sheet Materials
- Complete Food Container Range
- Sealing Films for All Tray Types
- Food Packing Machinery
- One-Stop Solutions
Stop compromising between material costs and packaging reliability. While standard Polystyrene (PS) is notorious for brittleness and stress-cracking, HSQY engineers advanced PS, HIPS, and GPPS sheet solutions that deliver the perfect balance of economic efficiency, precise thermoformability, and structural durability. Whether you require the glass-like clarity of GPPS for retail displays, the rugged impact resistance of HIPS for protective trays, or permanent ESD protection for electronics, our sheets ensure high yields on your production lines.
Backed by state-of-the-art extrusion lines within our vertically integrated facilities, we guarantee strict thickness tolerances, precise slitting, and zero impurities. From lightweight blister packs to heavy-duty industrial components, HSQY provides the exact polymer architecture your business needs to maximize profitability without sacrificing quality.
Optimized Impact Modification: Standard PS is inherently brittle. Our HIPS formulations utilize precisely dispersed rubber phases to absorb shock and prevent catastrophic cracking during transit and cold-chain storage.
Stress-Cracking Resistance: We carefully control the molecular weight distribution and residual monomer levels, significantly reducing the risk of environmental stress-cracking when the packaging is exposed to fats, oils, or certain adhesives.
Permanent ESD Stability: For electronic packaging, our anti-static and conductive PS sheets incorporate permanent masterbatches (not topical sprays), ensuring stable surface resistance (10⁶ - 10⁹ ohms) regardless of humidity or physical wiping.
Precision Slitting & Edge Quality: Laser-controlled slitting and guillotine cutting ensure perfectly smooth edges without micro-cracks or burrs, preventing jamming on high-speed automatic thermoforming and packaging machines.
Different end-uses demand entirely different polymer structures. Explore our specialized PS matrix:
GPPS (General Purpose Polystyrene): Delivering exceptional optical clarity and high gloss. Ideal for transparent packaging boxes, cosmetic displays, and retail windows where visual appeal is paramount.
HIPS (High Impact Polystyrene): The workhorse for opaque, durable packaging. Engineered for refrigerator liners, heavy-duty protective trays, toy components, and industrial equipment housings requiring superior toughness.
Anti-Static & Conductive PS: Critical for thermoforming IC trays, blister packs, and transport carriers for sensitive PCBs and microchips. Prevents electrostatic discharge (ESD) damage and dust attraction.
Food-Grade PS/HIPS: FDA-compliant formulations safe for direct contact with dry and cold foods, widely used for bakery trays, yogurt lids, and disposable food containers.
*Available in custom widths (up to 1600mm), precise thicknesses (0.2mm to 6.0mm), and Pantone-matched colors. Density: 1.04 - 1.06 g/cm³.
Selecting the wrong PS grade can lead to high scrap rates and customer complaints. Our engineers will help you define:
Thermal Forming Profiles: Matching the sheet's specific heat capacity to your oven's heating zones to prevent localized melting, webbing, or crystallization (whitening) in deep-draw cavities.
Impact vs. Clarity Trade-offs: Guiding you to the optimal blend of GPPS and HIPS if your application requires both a degree of transparency and enhanced drop-impact resistance.
Surface Energy (Dyne) Matching: Providing inline corona treatment to elevate surface tension for flawless UV, offset, or silk-screen printing on retail packaging and signage.
Q1: How do I choose between GPPS and HIPS for my packaging?
A: The choice depends entirely on your need for visibility versus durability. Choose GPPS if your product requires crystal-clear, glass-like transparency for premium retail display (e.g., cosmetic boxes, bakery windows). Choose HIPS if your product requires rugged, opaque protection against drops and impacts during shipping (e.g., electronic trays, industrial components, refrigerator liners).
Q2: My PS sheets keep cracking or turning white during vacuum forming. How do you solve this?
A: Cracking and whitening (stress-crystallization) usually occur due to uneven heating, excessive draw ratios, or low-quality base resin. HSQY solves this by utilizing high-purity resins with optimized molecular weight distributions. Furthermore, our technical team will review your heating zone profiles and recommend the exact HIPS grade with enhanced rubber-phase dispersion to ensure smooth, deep-draw forming without structural failure.
Q3: Will your anti-static PS trays lose their ESD protection in dry environments?
A: No. Cheap anti-static sheets rely on topical chemical coatings that rely on ambient humidity to work and easily wipe off. HSQY incorporates permanent conductive carbon or specialized polymeric masterbatches directly into the PS matrix during extrusion. This guarantees a stable surface resistance (10⁶ - 10⁹ ohms) that is completely independent of humidity levels and lasts for the entire lifecycle of the electronic packaging.
Q4: Do you provide custom slitting and cut-to-size services to reduce our waste?
A: Absolutely. We understand that material waste directly impacts your bottom line. We offer precision slitting for roll stock (up to 1600mm width) and custom guillotine cutting for sheets. By providing materials cut to your exact machine feed dimensions or final product blanks, we help you minimize edge-trim waste, reduce handling time, and streamline your production workflow.
Contact us today
Tel: +86-15806115291
WhatsApp: +86-15806115291
Email: sale6@hgqyplastic.com
11th floor, Huasheng Building, Zhonglou District, Changzhou City, Jiangsu Province, China, 213001
