Monthly Archives - July 2019

Comparison Guide for Plastic Material Performance

The Plastic Performance Penguin (The Triple P) When you’re choosing the plastic material for your injection molding project, you have literally thousands of materials to choose from. There are several factors to consider, such as cost, strength and temperature range. Wouldn’t it be nice if there was a penguin-shaped chart that helped guide you through a comparison of the most common plastic materials? Well you’re in luck because our Plastic Performance Penguin (“Triple P” for short) does just that. Sure, we could have made [...]

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How the China Trade Tariffs Affect Injection Mold Pricing

The recent announcement regarding a 25% tariff on certain products coming to the United States from China has some customers wondering if that will affect their pricing. It’s a fair question, considering we have a manufacturing plant in Shenzhen, China. The answer is NO, the new tariffs will not affect the price of our plastic parts, nor the pricing for injection molds imported to the U.S. from China. According to the revised Harmonized Tariff Schedule, the codes we use for injection molded [...]

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Injection Molding Clamp Force Requirements

In plastic injection molding, clamping force is required to hold the mold halves together while they’re being filled, under pressure, with the molten plastic. The force required by the injection molding machine to hold the mold together is expressed in clamp tonnage. A “200 ton” machine, for example, is capable of creating a clamping force equivalent to a total of 200 tons. So, how do you know how much clamp tonnage, and therefore which injection molding machine, is required for a [...]

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Post-Molding Painting Processes for Plastic Parts

Post-molding, or secondary, processes can enhance plastic injection molded parts by adding aesthetics and functionality. Painting is one of the most common secondary processes. There are several different painting processes, each of which provides unique solutions for making plastic parts more robust. For instance, stamping may be the best method for painting a logo on a part, whereas spray painting would be a better option for changing the color of the entire part. Or silk screening may be best for applying [...]

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