Blow Molding operations run on tight timelines—every minute impacts productivity and cost. When color changes drag out, black specks appear in finished products, or contamination refuses to clear, production stalls and costs spike. But what if the issue isn’t with your machine, resin, or team—but with the way you purge?
Let’s get real: old-school purging techniques waste resin, time, and money. If you’re still relying on virgin material or mechanical cleaning alone, you’re likely leaving residues behind and compromising future runs. The key? A smarter, faster, and more consistent purging strategy.
Why Contamination Keeps Coming Back
Contaminants like degraded resin, carbon build-up, or leftover pigments often sit deep within hot spots in the barrel or tooling. When you switch materials or colors without an effective purging strategy, that residue sticks around—and reappears as black specks or streaks during your next run.
These Issues Can:
- Reduce product quality
- Trigger customer complaints
- Cause excessive machine downtime
- Increase scrap rates and rework
You need a purging solution that doesn’t just push material through—but actually lifts, loosens, and removes the toughest build-up from deep inside the barrel and tooling.
Choosing the Right Purging Compound for Blow Molding
Using a specially formulated Purging Compound for Blow Molding eliminates common inefficiencies. UNICLEANPLUS offers a high-performance solution engineered specifically for blow molding applications—both continuous and intermittent types.
What Makes It Work?
- Pre-mixed, non-abrasive formulation that suits HDPE, LDPE, PP, and other blow molding resins.
- Thermal stability across temperature zones, reducing risk of degradation or smearing.
- Fast changeover support—removing color and resin traces in less time and with less material waste.
It’s not about pushing more material through—it’s about applying the right chemistry and process that actively targets contamination and reduces changeover stress.
Best Practices to Maximize Efficiency
If you want consistently clean changeovers and fewer quality issues, pair your Purging Compound with these practices:
- Clean the hopper and throat before loading the compound
- Match temperature zones to the compound’s optimal range
- Use increased back pressure during purging to improve flow and contact
- Perform short, high-speed screw strokes during the purge
- Displace leftover compound with your next production resin
These steps, when done correctly, can drastically reduce downtime and resin loss.
Efficiency Goes Beyond Speed—It’s About Consistency and Repeatability
Speeding up your process isn’t useful if the results aren’t consistent. That’s where UNICLEANPLUS helps—its compound removes contamination effectively across runs, leaving you with repeatable quality and fewer surprises during inspection.
Still Struggling With Downtime?
Stop letting changeovers eat into your margins. Switch to a proven Purging Compound for Blow Molding that supports efficiency and product quality without compromise.
Contact UNICLEANPLUS to learn how our Blow Molding Purging Solution can keep your operations clean, quick, and under control.