Home » Frequently Asked Questions (FAQ) » What Materials Do You Process For Micro Molding?

Simply shrinking a micro mold design to a small size isn’t effective. Micro molding requires tolerances and design features that even world-class molders don’t believe can be done. Micro molding resins and thermoplastics and the standard route, but micro molding materials are only the beginning of this high precision puzzle.

The materials we use include but aren’t limited to Polyethylene (PE), Polypropylene (PP), Nylon (Polyamide), Polycarbonate (PC), Delrin (Acetal / Polyoxymethylene / POM), Polysulfone (PSU), Polybutylene terephthalate (PBT) and many others.

See the full list with photos »

Selecting The Best Micro Molding Materials

There is no perfect material, each is unique and accomplishes a specific purpose. We work with a wide variety of micro molding materials and micro molding resins and have done extensive research on melt flow and behavior and we have determined an excellent process for the most demanding micro mold projects.

Ultem Polyetherimide PEI - micro molding materials
Ultem in pellet form.

There are several questions that will be helpful as you select the best micro mold material for your project. Here are some questions we typically start with:

  • What environmental conditions will the part need to operate under?
  • Does it need to withstand solder reflow temperatures or other high-heat situations?
  • Does it touch the human body or other bio-materials?
  • Are there lubricity or hydroscopic properties to include or exclude?

Need Some Help Picking The Best Micro Mold Resins?

Selecting perfect micro molding resins and thermoplastics are very much an art form. Knowing how a given resin will perform with the desired micro-features takes experience and we have seen a lot in 30+ years. Let us give you our wisdom.

Do you have a tricky micro mold question? Fill this out and we will get you a quick answer.