Material thickness

The thickness of the ABS resin-molded product depends on the end use of the product, but is normally 2 to 4 mm (may be up to 0.7 mm locally). If the wall thickness is 6mm or more, sink marks may occur on the surface and voids in the center.

The wall thickness of ABS resin molded products depends on the application of the product, but it is usually 2 to 4 mm, and locally it can be up to about 0.7 mm. If the wall thickness is 6mm or more, sink marks may occur on the surface and voids may occur in the center.

Sudden changes in the thickness of the molded product can result in stress concentration and warping and spawn appearance defects like flow marks and silver.

[Reference] Troubleshooting : Warpage , sink marks , flow marks , silver streaks

Recommended method for changing wall thickness

Since the cooling time of a molded product is proportional to the square of the wall thickness, we recommend avoiding thick walls as much as possible to accelerate cycle time and instead adopting a rib structure to improve rigidity. However, if extreme uneven thickness design is inevitable, consider using the gas injection molding method. This is not only to accelerate cycle time, but also to prevent sink marks and warpage.

Important Note:

We do not assure the quality or safety of products derived from our materials or suggestions. It is essential to determine the appropriateness for your product independently. Ensure adherence to laws, regulations and industrial property rights.