Purging Compounds

The use of purging compounds in extrusion and plastic injection moulding processes is vital for maintaining product quality and colour, preventing contamination, reducing downtime, and optimising efficient and cost-effective production.

So what do purging compounds actually do?

  1. Removal of Contaminants: Purging compounds help clean machinery and remove any residual contaminants, such as colourants, additives, or degraded polymer material from previous production runs ensuring better product quality and consistency.
  2. Colour and Material Changeovers: When transitioning from one colour or material to another, purging compounds are used to clean out the previous material completely. This is crucial to prevent colour or material contamination, which can lead to defects and inconsistencies in the final products. 
  3. Preventing Carbonisation and Degradation: During extrusion and injection moulding processes, heat can cause the polymer material to degrade or carbonise. This can result in black specks or streaks in the final products. Purging compounds help remove degraded material therefore preventing carbon buildup, ensuring a cleaner and smoother production process.
  4. Preventing Clogging and Machine Damage: The accumulation of residual material or contaminants in the machinery can lead to clogging of the extrusion or injection moulding equipment. This can result in increased downtime, reduced productivity, and even potential damage to the machinery. Purging compounds thoroughly clean the equipment, maintaining smooth operation, and extending the lifespan of the machinery.
  5. Time and Cost Efficiency: Efficient purging reduces the time required for colour and material changeovers, as well as the need for excessive manual cleaning and maintenance. By minimising downtime and optimising production processes, the use of purging materials improves overall productivity and cost efficiency.

At Dugdale, we are a purging compound supplier with a difference as we develop, manufacture and supply extrusion and injection moulding purging compounds so you can be sure of excellent technical support.

Below you will find details of our purging compounds which cover rigid, flexible, and non-PVC materials but our team is always on hand to answer any questions you may have.

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...