Barrel Blitz Universal - Purging Compound

Barrel Blitz Universal (BBU) is a true evolution in purging compounds.

Barrel Blitz  is made up of a stable, easily clearing polymer and Aquapurge’s proprietary Scrubber Concentrate. It’s three primary uses are; colour changes, material changes and where it truly comes into its own; clearing carbon.

Work effectively from 160°C (320°F) to 370&⪚C (698°F) 
Easily cleaned out by any material – clear ones as well – (no milky mouldings) 
Can be used as a strip-down material (ask us for instructions) 
Above average colour and material change ability 
Effective for much higher temperature materials if reduced to 370°C (698°F) while purging

Click Here to Contact Us and request your FREE sample

SKU
PR-GRP-BBU

Barrel Blitz Universal (BBU) is a true evolution in purging compounds.

Barrel Blitz  is made up of a stable, easily clearing polymer and Aquapurge’s proprietary Scrubber Concentrate. It’s three primary uses are; colour changes, material changes and where it truly comes into its own; clearing carbon.

Work effectively from 160°C (320°F) to 370&⪚C (698°F) 
Easily cleaned out by any material – clear ones as well – (no milky mouldings) 
Can be used as a strip-down material (ask us for instructions) 
Above average colour and material change ability 
Effective for much higher temperature materials if reduced to 370°C (698°F) while purging

Click Here to Contact Us and request your FREE sample

More Information & Product Selection

Clearing Carbon – by this we mean fully degraded materials and plate-out from concentrated pigments or additives – can either be done in isolation but more importantly every time you use the BBU for colour of material changes.

Barrel Blitz Universal (BBU) will keep your screws, barrels and nozzles in pristine condition. Each time you use BBU for colour or material changes you are giving your machine a deep scrub back to its original screw, barrel and nozzle profiles.

So what does original profile mean to you; at the end of the day it means more profit. It’s how it gets there though that is exciting. If we forget all the reduced rejects for specks of carbon or colour leach-out etc and just focus on screw profile it is amazing how many issues in production are effected by keeping the screws clean and constant to how they were originally manufactured.

To explain what is happening; if you get a build up of carbon or plate-out it is not uniform across the screw, in the majority of cases it starts at the compression zone and gets worse through the metering zone. This results in a reduction in the depth of the metering zone which means that you are trying to force the same amount of material from the feed zone through a smaller volume metering zone. This either succeeds or you get a measure of screw slip which results in an extended screw back time. In either case you get an increase in shear placed on the melt which results in increased melt temperature, longer cycle times (you have to take the heat out again), easier flow, different flow characteristics through the mould, voids, flash, splash, gassing etc, etc which equals rejects and wasted time.

At the end of the day you are hampering yourself with a reduction in the processing window and extended set up times as you will have to change conditions from your set-up sheets to get the same quality result which means less machine utilisation, lower output for the same or higher cost which means less profit.

The exciting thing is that if your machine stays in the pristine condition as when it was delivered the culmination of all these small individual savings has a huge effect on machine utilisation and output and probably no-one will be able to put their finger on why this has actually happened.

Grouped product items
Part Number Product Name Stock Item    
PR-BBU25 Barrel Blitz Universal 25kg - Ready Mix Formula