Services

Finding, among many candidate materials, a grade that meets the part's requirements at a reasonable cost.

We turn your requirements into testable targets (flammability rating and thickness, HDT, low-temperature impact, chemical resistance, appearance) and compare them with grade data to recommend 1–3 candidate grades.

Tell us the material you use now and its key values. We list the comparison items and the items that need to be validated again.

A list of candidate grades, a comparison note, validation advice and samples.

The material is right, but the part design or mold layout causes defects.

Based on the material's properties, we give advice on wall thickness, ribs, screw bosses, snap fits and gate locations. When needed, we run mold flow analysis with your mold team to check filling, weld lines and warpage.

Part design recommendations, the material data needed for mold flow analysis, and a review of the results.

No standard grade meets the flame retardancy, toughness, flow, appearance and environmental requirements at the same time.

We adjust the formulation by reinforcing, toughening, filling and blending. Common directions:

• Thin-wall flame-retardant grades: higher flow while keeping the flammability rating;
• Low-temperature toughness: better impact performance at −20 °C to −40 °C;
• Halogen-free / fluorine-free: formulations designed to your restricted substance list;
• Recycled material: recycled content added while meeting the performance requirements (-R versions).

Samples of the custom formulation, a draft TDS and validation data.

Brand colors must be accurate, with small color differences between production batches.

The Shenzhen Color Matching Center matches colors to RAL or Pantone codes or to your physical color sample. Color is added during compounding and pelletizing, which gives a more even color than adding masterbatch at molding. After color matching we confirm key properties such as flammability and weathering again.

Color code or color sample, gloss level, viewing light source and color difference (ΔE) acceptance criteria.

Color plaques and a color matching record.

New parts need samples quickly and validation before mass production.

The Dongguan Development Center handles sampling and small-batch trial production for customer projects. Role of the Dongguan Development Center: [to be verified by GREENPOLYMER]. On request, we test properties on standard test specimens, or support your tests on the finished product.

Melt flow rate, tensile, flexural, impact, heat deflection, burning tests to the UL 94 method, glow-wire, tracking, xenon-arc / UV aging, color difference and more (see the list of test capabilities on Quality and sustainability). When a third-party report is needed, we can send samples to a third-party lab on request.

Sample parts or samples, test records and a validation summary.

Each delivery comes with a certificate of analysis (COA) that records key values. To be corrected by GREENPOLYMER.

When you move into mass production, we give advice on drying, temperatures and process settings. If appearance or dimensional problems occur, we help find the cause.

After a quality complaint, we trace raw materials and production records by batch number, then give an analysis and corrective actions.