Automotive, Appliance & Electronics

Suitable for automotive plastic components, appliance housings and structural parts, as well as related electrical and electronic plastic products. These products typically have high requirements for color accuracy, surface quality, dispersion, and batch-to-batch consistency. Polytech provides tailored masterbatch solutions based on the resin type, product structure, target color, and application environment, helping address issues such as color variation, color streaks, flow marks, color spots, and uneven surface color.

01Assembly & Appearance

Adjacent trim parts, appliance panels and electronic housings can look mismatched even when they share a color code. Resin type and surface texture affect the result. Match the masterbatch in each actual material, then compare the assembled parts under agreed lighting rather than relying on one standard plaque.

02Stability & Exposure

Processing heat and service exposure can change the appearance of a colored part. A suitable masterbatch needs pigments and a carrier that tolerate the intended molding conditions. Where heat or light resistance is required, evaluate the finished material after the specified exposure, not only when it leaves the mold.

03Performance & Compliance

Color formulation changes also need to respect the component's performance requirements. Automotive interiors may require odor and emissions checks; appliance and electronic parts may have electrical or flammability requirements. Qualify the actual resin and masterbatch combination at the intended dosage instead of assuming an existing material approval still applies.

Representative Case Study

Ensure lasting whiteness in ABS appliance housings with our heat-stable masterbatch formulations that prevent yellowing during aging while maintaining initial color accuracy and part performance.

Challenge

A white ABS appliance housing met its initial color target but shifted toward yellow during the customer's heat-aging evaluation.
Solution

Assess the base resin and processing history alongside the masterbatch. Trial a white formulation suited to ABS and the required heat exposure, comparing initial and aged color under the same conditions.
Expected Outcome

Keep color change within the customer's acceptance limit while retaining required part performance, with results confirmed by aging and production trials.