---
title: How to Speed Up Hot Runner Changeovers with U Grade
description: Faster color changes, less downtime! Learn how an injection molding company used Asaclean® U Grade to speed up hot runner purging and improve efficiency.
---

[Plastics Processing Purging Tips On The ASACLEAN Blog ](https://www.asaclean.com/blog)

# [How to Speed Up Hot Runner Changeovers with U Grade](https://www.asaclean.com/blog/hot-runner-purge-compound-helps-injection-molding-company-reduce-downtime-by-more-than-two-hours)

 Written by [Ben Moore](https://www.asaclean.com/blog/author/ben-moore) | Aug 17, 2012 7:44:55 PM

A process technician from an injection molding company based in the Midwest making integrated control and information platforms, intelligent motor control and industrial components, recently used U Grade on a Nylon 6 hot runner manifold color change application. She reported:

“Good Day, Ben. Thank you for all of the information on the Asaclean®. I have now purged two manifolds with the hot runner purge compound, and I’m very impressed with the results. Both hot runner manifolds cleaned up in approximately 30 to 35 shots with the Asaclean® U Grade purge compound.

Once the U Grade purge compound was fairly cleaned through the gates, I followed it up with our production material (don't even shut down the press), and within another 30 shots we were keeping parts. It has dropped our change over time to about 45 minutes, compared to hours of running and using production resin.

I have used a number of products in my career and this hot runner purge compound has impressed me!”

Even after having been a Technical Representative at Sun Plastech Inc for 11 years, being able to resolve problems and help companies like this one save money, it understandably never gets old. If you’d like more info on how you can use hot runner purging compounds to improve efficiency at your thermoplastic processing plant, contact [me](mailto:%20bmoore@asaclean.com).[mailto:%20bmoore@asaclean.com](mailto:%20bmoore@asaclean.com)

[View full post](https://www.asaclean.com/blog/hot-runner-purge-compound-helps-injection-molding-company-reduce-downtime-by-more-than-two-hours)

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