Draft Mark

The Ultimate Guide to Draft Mark Optimization

What is Draft Mark?

Draft mark is a small, dimpled imperfection that can appear on the surface of a plastic product. It is caused by the air that is trapped in the mold during the injection molding process. Draft mark can be unsightly and can affect the product's quality.

How to Avoid Draft Mark

There are a number of things that can be done to avoid draft mark, including:

• Using a mold with a proper draft angle
• Venting the mold to allow air to escape
• Using a vacuum to remove air from the mold
• Injecting the plastic at a high pressure
• Using a slow injection speed

How to Remove Draft Mark

If draft mark does occur, there are a number of ways to remove it, including:

• Using a heat gun to melt the plastic
• Using a chemical solvent to dissolve the plastic
• Using a sanding block to smooth the surface

Conclusion

Draft mark is a common problem that can be avoided by taking the proper steps. By following the tips in this guide, you can ensure that your plastic products are free of draft mark.