Cyclinder Purging Compounds
purogran® is a purging compound based on thermoplastics and is used for color and material change-overs on all extrusion, injection moulding and blow moulding machines. purogran® purges all thermoplastics gently, very eﬀectively and above all reduces costs. It’s quick and easy to apply, easy to use and absolutely non-toxic.
The rub-oﬀ eﬀect.
purogran® purges all commercially available thermoplastics, including technical polymers, and is generally used with the same machine settings as the thermoplastic to be purged. By warming, the material expands, softens up and develops its highly eﬀective rub-oﬀ eﬀect: It literally frees the machine — gently and without attachments.
- Shorter machine downtimes
- Less material expenses
- Minimizes waste disposal costs
- Eﬀective personnel placement
Ideal price-performance ratio
I use purogran®-type S400 for purging my extruders after high-performance polymer extrusions and achieve excellent purging results with it.
Easy to handle, precisely to measure, clearly visible purging eﬀect!
The right type for you …
purogran® ﬁts to any machine size and is available in three diﬀerent types:
Type K3 for small machines, type K5 for medium-sized machines, and type K8 for large machines. Working temperature: 190° to 300° C. Also available as special type purogran® S400 for extremely low or high temperatures on all machine sizes.
Working temperature: 150° to 400° C. purogran® S400 is also food safe and ideal for purging thermoplastics coming in contact with food.