Purging Compounds

The Importance of Purging Compounds in Extrusion and Injection Moulding

Purging compounds play a critical role in extrusion and plastic injection moulding, ensuring consistent product quality, preventing contamination, and optimising production efficiency. Their use reduces downtime and supports cost-effective operations by maintaining clean machinery and smooth transitions.

What Do Purging Compounds Do?

  • Remove Contaminants: Purging compounds effectively clean machinery by eliminating residual contaminants like colourants, additives, or degraded polymers from previous production runs. This ensures consistent product quality and eliminates defects.
  • Facilitate Colour and Material Changeovers: Transitioning between colours or materials requires thorough cleaning to prevent contamination. Purging compounds ensure clean changeovers, avoiding defects and maintaining product uniformity.
  • Prevent Carbonisation and Degradation: Heat during production can cause polymers to degrade or carbonise, leading to black specks or streaks in finished products. Purging compounds remove this buildup, enabling a cleaner, smoother process.
  • Avoid Clogging and Machine Damage: Residual material buildup can clog equipment, reducing productivity and potentially causing damage. Purging compounds thoroughly clean machinery, ensuring smooth operation and extending its lifespan.
  • Enhance Time and Cost Efficiency: By speeding up colour and material changeovers, reducing manual cleaning, and minimising downtime, purging compounds improve overall productivity and lower operational costs.

At Dugdale, we offer a comprehensive range of purging compounds tailored for extrusion and injection moulding, including solutions for rigid, flexible, and non-PVC materials. As a leading supplier, we provide not only high-quality products but also dedicated technical support to meet your specific needs.

Explore our full range of purging compounds below, and feel free to contact our expert team with any questions or for assistance in selecting the right solution.

DuCaFreeze
DuCaFreeze
DuCaFreeze

DuCaFreeze compound meets broader temperature performance requirements and eliminates the need to strip dies for cleaning.

Using new generation stabiliser technology we have creat... More info...

Rigid purge compound
Rigid purge compound
RPC

DESCRIPTION: A stabilised extrusion-purging compound. This material is highly stabilised and lubricated to enable it to also be used as a ‘sleeping’ material for machine shut downs... More info...

DuCaPurge
DuCaPurge
DuCaPurge

DuCaPurge was created by Dugdale in response to customer desire for a universal purging compound. DuCaPurge is not only a purging material for injection moulding but a purging comp... More info...