technical articles

Why Medical Thermoforming Needs Value-Added Engineering

Why Medical Thermoforming Needs Value-Added Engineering

Why Medical Thermoforming Needs Value-Added Engineering Profile Plastics thermoforms highly-engineered plastic parts with close tolerances and challenging cosmetic requirements. Through value-added engineering, our Lake Bluff, Illinois company has helped bring...

Pressure Forming: Past, Present, and Future

Pressure Forming: Past, Present, and Future

This white paper is based on a presentation that Steve Murrill, Chairman of the Board and former President of Profile Plastics, shared with the Society of Plastics Engineers (SPE) in 2016. Steve’s history of pressure forming dates back to the 1980s but is as important...

Molded-In Colors in Pressure Forming

Molded-In Colors in Pressure Forming

Molded-in colors are a cost-effective alternative to parts painting. Using colored plastic sheets instead of paint reduces development time, increases design freedom, improves part quality, and promotes environmental sustainability. It also increases part-to-part...

Molded-in Features in Pressure Forming

Molded-in Features in Pressure Forming

Molded-in features increase design freedom, improve part quality, and reduce assembly times. They also reduce or eliminate trimming and other secondary processes. Examples of molded-in features in pressure forming include holes, vents, mounting locations, and...

Undercut Features in Thermoformed Parts

Undercut Features in Thermoformed Parts

Undercuts are recessed features in a thermoformed plastic part that, in thermoforming, prevent its ejection from the thermoform mold. These part features commonly provide a fastening point or locating edge for mating parts, such as with snap-fit assemblies, lids, or...

Thermoforming Draw Ratio

Thermoforming Draw Ratio

The goal of heavy-gauge thermoforming is to produce a part with as close to a uniform wall thickness as possible. As a part designer, you’ll need to specify a target wall thickness so that your thermoformer can select a plastic sheet with the right starting thickness....