Nanoplas Blog
Coronavirus: Will the Molding Industry Be Impacted?
Most likely, the answer is yes. Wuhan and other parts of China shut not only their manufacturing down, but entire cities. That effect has rippled, as COVID-19 has spread and continues to spread, growing to become the global health pandemic that it is today. Exactly...
Fixing Color Swirl Problems with Molded Plastics
When color isn’t evenly distributed throughout a part, appearing as streaks, swirls or patches of discolored material, you’re probably looking at color swirls. Also known as streaking, color streaks and marbling, color swirls are occasionally misidentified as black...
Causes for Black Specks in Your Injection Molds
When you see black or brown specks on your molded part, you’re probably dealing with material that has been severely degraded. Sometimes called carbon buildup, black specks are sometimes mistaken as material contamination. While contamination can be a cause, you’ll...
4 Causes for Burns in Injection Molding
Sometimes known as dieseling or gas traps, burns in injection molding are literally that: burns. Often appearing as black, smutty deposits on the part and mold surface, these are spots at which the plastic has burned. Not to be confused with color swirl or brown...
Eliminating Cracks Within Injection Mold Parts
What Is Cracking in Injection Molding? When a part is physically fractured or broken, you’re experiencing cracking. Cracks usually occur due to post-molding conditions, but when troubleshooting cracking, you want to know exactly when the cracking is happening as it...
Troubleshooting Contaminated Molds
What Is Contamination in Injection Molding? Contamination appears as discoloration, streaks, splay, delamination and other types of defects. Because it’s such a broad area with multiple possible culprits, is best to start with the usual suspect: the material brought...
6 Key Factors for Perfect Mold Cavity Balance
In all phases of the molding process—first stage, second stage and cooling—the cavities must be treated the same. If not, you run the risk of several different injection molding defects. We can prevent these issues in advance by ensuring six key factors are as they...
Troubleshooting Injection Molding Gate Blush
When you see a non-uniform fanning out from the gate, which appears as a different color or gloss level to the surrounding plastic, you may be dealing with gate blush. What is Gate Blush? Also known simply as blush, or gate shear or halos, gate blush is a dull or...
Plastic Injection Molding: Preventing Bubbles
Are you experiencing bubbles during your injection molding processes? Let’s go through the possible causes—and fixes—to get rid of bubbles. What are Bubbles in Injection Molding? Bubbles, sometimes known as gas traps or blisters, are cosmetic defects that detract from...
What Causes Plastic Delamination in Injection Molding?
When you’re able to peel the surface of a molded part, layer by layer, you’re dealing with delamination, an injection-molding defect that is sometimes also known as lamination or layering. This is a bad sign—delamination hurts the strength of the part, thus making it...