Author - Denny Scher

Plastic Injection Molding Technical Resources

Whether you want to learn about plastic part shrinkage, or clamping force requirements, the Knowledge Base area of our website offers a wealth of valuable technical information for injection molding. One of the most useful tools in the Knowledge Base is the Design Guidelines. When designing a part for the injection molding process, there are certain best practices to follow in the design stage in order to avoid costly and time-consuming design revisions further along in the development process. Visit the [...]

Read more...

Plastic Sample Kits Now Available

We are very pleased to announce the debut of a 20-piece plastic sample kit. Each hexagonal piece is injection molded from a different plastic material, so you can compare stiffness, shrink and other characteristics of 20 common plastic resins. Because the sample pieces are all made from the same mold, you can directly compare each material’s susceptibility to sink, warp, knit lines, flash and more. This allows part design optimization specific to material selection like never before. We molded the parts in [...]

Read more...

Combining Two Different Plastic Materials by Overmolding

Overmolding is a very useful plastic injection molding process for producing multi-material parts with some unique functional and cosmetic properties. For example, overmolding can be used to add features of a different material to a handle or grip. Think of a power tool with grip pads made out of a softer, “grippier” material than the body of the handle. Or a gaming controller with some features made of a different material than the main controller body. We overmolded the tire showroom [...]

Read more...

Now Offering Compression Molded Rubber Parts

We are pleased to announce that we are now offering compression molding of custom rubber parts. Compression molding is now the 4th custom manufacturing process we offer, complementing injection molding, CNC machining and urethane casting. Compression molding is the process where a heated rubber material (the charge) is placed in one side of a mold, then the other side of the mold is clamped down, and the rubber material is compressed into the desired shape. One of the biggest benefits of compression [...]

Read more...

Injection Molded Plastic Part Shrinkage, Explained

Image: Plastics Technology Plastic injection molding shrinkage is the contraction of a plastic molded part as it cools in the mold, and even after ejection. There are multiple factors that contribute to the amount of shrinkage a particular plastic part may undergo, such as the type of plastic material, wall thicknesses, and processing parameters. Mold makers must factor in shrinkage and compensate for it when making the injection molds that will make the plastic parts. So how do they know how much [...]

Read more...

Shorten Your Time to Market with Faster Quotes

When you need custom plastic parts fast, you need every step in the process to happen fast. It all starts with a price quote, and you don’t have time to wait days for it. At ICOMold, we have an online quotation system that provides INSTANT quotes for your injection molding, CNC machining or cast urethane project. Not only is your quote instant, but it’s also interactive. If you change your part quantity, material or other options such as a multi-cavity [...]

Read more...

Advantages of Steel Over Aluminum for Injection Molds

Some injection molding companies use steel molds, and some use aluminum molds, for various reasons. There are pros and cons for each of the materials, but here at ICOMold we make steel molds because of the advantages they offer to our customers. One advantage is that steel is more easily modifiable in the case of a part design change. Another advantage is better durability. For an in-depth discussion of the advantages of steel over aluminum, please visit this page of our website.

Read more...

Upgrades to Our Quotation System Highlighted in New Video

We are pleased to announce the release of a new video that explains the upgraded features in our online quotation system. Recent system upgrades provide an improved user experience with a more intuitive interface and streamlined navigation. A new organizational layout makes it easier to quickly find the important elements of your quote, plus a new color scheme complements our branding. At just under four minutes, the video gives a concise overview of how quick and easy it is to get [...]

Read more...

Pumpkin Spice-Flavored Amorphous Plastics?

Back in July, we announced our new penguin-shaped plastic material performance chart. It compares the temperature range, relative cost, and performance characteristics of common crystalline and amorphous plastic resins. (Why penguin-shaped, you ask? Because it’s more fun than a boring old triangle or pyramid). The response was overwhelming – a lot of people downloaded the penguin chart. So, since we’ve added new people to our mailing list since then (and in case you missed the original), we decided to dress [...]

Read more...

Part Design Guidelines for the Plastic Injection Molding Process

For design engineers who are new to designing for plastic injection molding, there can be a knowledge gap in making sure the CAD model is properly designed for this manufacturing process. There are certain, very specific design features that must be considered in the design stage in order to avoid moldability issues that can produce undesirable results in the molded parts. If they’re not considered from the beginning of the design process, and they’re not discovered until the Design For [...]

Read more...