Changing colors on an injection molding machine is usually a massive headache. You go from a dark color like black or blue to white, and suddenly you have hundreds of parts coming out with ugly streaks. All of those defective parts go straight into the scrap bin.
The boss hates it because resin is getting really expensive these days. The guys on the floor hate it because the changeover takes forever and kills their daily output numbers. But you can actually cut down that scrap pile pretty fast if you change how you clean the barrel.
Stop Using Raw Resin to Flush the Barrel
A lot of machine operators just crank up the screw speed and push a ton of the new plastic through to flush out the old dark color. That almost never work well.
Color pigments stick very hard to the metal of the screw, the barrel walls, and inside the hot runner system. Just pushing raw, clear plastic over it takes way too long. The new resin just slips over the stuck pigment. You end up wasting bags of good material trying to get a clear shot.
The Right Way to Lift Stubborn Pigments
To stop throwing away so much good plastic, you need a material that actually grabs the old color and pulls it completely out of the machine.
At UNICLEANPLUS™, our formulas are made to actively lift those stubborn color pigments and degraded carbon right off the metal. It acts fast to clean the whole system. And because our product is totally non-abrasive, it won’t scratch up or damage your expensive screw while it cleans.
Cut Your Scrap and Dead Time
When you use a proper compound to clean the injection machine, the color changeover happens way faster. We have seen local factories cut their purge wastage by up to 60 percent just by switching their cleaning method. That means less unplanned machine stops, less streaky parts on the conveyor belt, and way less scrap sitting in boxes waiting to be reground later.
Don’t Guess, Test It First
Every factory has different setups. You shouldn’t just guess if a chemical will work for your specific resin or your mold process. You really need to run it and see the purge lumps come out clean with your own eyes.
We know our product works, so we let plant managers request a purging compounds free sample directly from our website. Our expert team will contact you within 24 hours to figure out the exact chemical grade you need for your machine temperatures and plastic type.
Stop wasting good plastic on bad color changes. Grab your trial sample and see how much scrap you can save on your next shift.