Compostable Resin & Raw Materials

Product Overview

AISUNBIO supplies certified compostable resins and raw material blends to film converters, bag manufacturers, packaging compounders and injection moulders who aim to produce certified compostable products without sourcing from multiple suppliers. These resin grades are manufactured at the Shouguang plant and adhere to the same strict quality standards as finished compostable bag products, ensuring consistent performance across every batch. The product line covers four distinct base resin grades, all carrying internationally recognized compostability certifications, to meet diverse processing and end-product requirements for sustainable packaging and molded goods.

Available Resin Grades

The product line includes four standardized resin grades to cover different processing and application needs: 1. Pure PBAT resin pellets: a flexible biodegradable base resin ideal for high-elasticity film products. 2. Pure PLA resin pellets: a rigid, transparent biopolymer suitable for rigid molded goods and high-clarity film applications. 3. PBAT+PLA blend resin: a balanced formulation combining the flexibility of PBAT and the stiffness of PLA, optimized for blown film processing. 4. Corn starch-modified blend resin: a cost-effective, reinforced blend designed for thicker film and semi-rigid molded products. All grades are supplied in uniform pellet form, with a standard MFI range of 2 – 12 g/10 min, and can be adjusted to custom MFI specifications to match specific processing equipment requirements.

Certification & Compliance

All resin grades in the product line hold full international compostability certifications to ensure end products meet global market access requirements. Key certifications include: OK Compost HOME & INDUSTRIAL certification, which verifies the resin can fully compost in both home composting environments and industrial composting facilities. DIN CERTCO raw material certification with scope number 7W0434, confirming the material meets European biopolymer safety and compostability standards. EN 13432 compliance, the European standard for packaging recoverable through composting and biodegradation. These certifications eliminate the need for additional material-level testing for end product manufacturers, reducing compliance costs and shortening time-to-market for new compostable product lines.

Processing Adaptability

The compostable resin pellets are compatible with a wide range of common plastic processing equipment, with grade selection tailored to specific processing methods: Blown film processing: PBAT+PLA blend and pure PBAT grades are optimized for blown film lines, delivering consistent melt strength, uniform film thickness, and excellent printability for packaging film products. Cast film processing: Pure PLA and PBAT+PLA blend grades are suitable for cast film production, producing high-clarity, dimensionally stable film for packaging and lamination applications. Injection moulding: Pure PLA and corn starch-modified blend grades are formulated for injection moulding, offering good flow properties, dimensional stability, and surface finish for rigid molded parts. Custom MFI adjustment is available for all grades to match the specific screw design, line speed, and temperature profile of individual processing equipment, eliminating processing defects caused by mismatched material flow properties.

Quality Assurance & Supply Terms

AISUNBIO implements a strict quality control system for every batch of resin produced, with consistent batch quality guaranteed by in-line QC testing at every production stage. Each shipment includes full QC test results to verify material properties match the agreed specifications. Standard supply terms are designed to support global manufacturing operations: Minimum order quantity (MOQ) is 5 tons per resin grade, suitable for both small-scale trial orders and large-volume production runs. Packaging is 25 kg moisture-resistant kraft bags, palletised and shrink-wrapped to protect the pellets from moisture contamination during storage and international transit. Lead time is 15 – 25 days from order confirmation, with flexible scheduling for repeat orders. A full documentation package is provided with every shipment, including Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), Certificate of Conformance, and full copies of all certification documents, to simplify incoming inspection and customer compliance audits.

Target Customers

This compostable resin product line is designed for global manufacturing partners across the sustainable packaging and bioplastics value chain, including: Film converters producing compostable shopping bags, food packaging film, and agricultural mulch film. Bag manufacturers looking to switch to certified compostable materials to meet regulatory requirements for single-use plastic bans. Packaging compounders developing custom biopolymer formulations for specific end-use applications. Injection moulders producing compostable food containers, cutlery, and consumer goods packaging. Global bioplastics distributors looking for a reliable, certified raw material supplier to serve regional market demand.

Application Scenarios

The compostable resin pellets are suitable for a wide range of end products that require full compostability to meet environmental regulations and consumer demand for sustainable alternatives: Flexible packaging applications: including compostable shopping bags, produce bags, food wrap film, courier packaging bags, and agricultural mulch film, where the flexibility and printability of PBAT and PBAT+PLA blends deliver performance matching traditional polyethylene film. Rigid packaging applications: including compostable food containers, cutlery, cups, lids, and disposable tableware, where the stiffness and clarity of pure PLA and starch-modified blends provide the required structural performance. Industrial packaging applications: including compostable waste bags, industrial packaging films, and protective packaging for e-commerce, where the durability and compostability of the resin grades meet the performance requirements of heavy-duty use cases. All end products made with these resins can be certified as compostable, as the base material already holds all required compostability certifications, reducing the testing burden for end product manufacturers.

Industry Pain Points Addressed

This product line is designed to solve common challenges faced by manufacturers transitioning to compostable packaging and molded goods: 1. Eliminates the need for multi-supplier sourcing: manufacturers can source all required compostable resin grades from a single supplier, reducing supply chain complexity, logistics costs, and quality inconsistency between different material batches. 2. Reduces compliance and certification costs: all resin grades hold full international compostability certifications, so end product manufacturers do not need to invest in expensive material-level testing to prove compostability, shortening time-to-market for new products. 3. Solves processing compatibility issues: custom MFI adjustment ensures the resin matches existing processing equipment, eliminating the need for costly equipment modifications or process adjustments when switching from traditional petroleum-based plastics. 4. Ensures consistent batch quality: strict QC testing per shipment and standardized production processes eliminate batch-to-batch variation, which is a common issue with uncertified biopolymer raw materials that can cause processing defects and end product performance issues. 5. Supports global market access: the certifications meet the requirements of major markets including the EU, North America, and Asia-Pacific, allowing manufacturers to export compostable products without facing material-related regulatory barriers.

Frequently Asked Questions (FAQ)

Q1: What resin grades are available for blown film production?
A: For blown film applications, we recommend the PBAT+PLA blend grade for general-purpose packaging film, and pure PBAT grade for high-elasticity, heavy-duty film applications. Both grades can be adjusted to custom MFI specifications to match your blown film line requirements.

Q2: Do all resin grades hold the same compostability certifications?
A: Yes, all four available grades (pure PBAT, pure PLA, PBAT+PLA blend, corn starch-modified blend) hold OK Compost HOME & INDUSTRIAL certification, DIN CERTCO 7W0434 certification, and EN 13432 compliance, so end products made with any of these grades can be certified as compostable.

Q3: What is the minimum order quantity for each resin grade?
A: The standard MOQ is 5 tons per grade, which is suitable for both trial production runs and large-volume manufacturing orders. We can provide full documentation and QC test results for every shipment to support your incoming inspection process.

Q4: Can the MFI of the resin be adjusted to match our existing processing equipment?
A: Yes, we offer custom MFI specification adjustment for all resin grades, with a standard range of 2 – 12 g/10 min. You can specify your required MFI value when placing an order, and our production team will adjust the formulation to match your processing equipment’s requirements.

Q5: What documentation is provided with each shipment?
A: Every shipment includes a full documentation package: Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), Certificate of Conformance, and copies of all relevant certification documents, to simplify your compliance audits and incoming quality checks.