Product category:
Injection moulding
News Release from: Mykal Industries | Subject: PU Cleaner (SB 6)
Edited by the Manufacturingtalk Editorial
Team on 28 April 2004
Solvent replaces methylene chloride for
flushing
For industries that make use of polyurethane injection moulding or casting, flushing of PU mixing heads and equipment can be done with a solvent agent instead of methylene chloride.
For industries which make use of Polyurethane injection moulding or casting as part of their manufacturing process, such as footwear, aerospace and automotive, plant cleaning and maintenance is essential if it is not to be interrupted by faulty or dirty injection equipment and components Methylene chloride has been traditionally used for the flushing of PU mixing heads and injection moulding equipment due to its fast purging and drying properties, yet it can only be used once and requires users to wear protective clothing and respiratory equipment because it is classified as a Category 3 Carcinogen - R40 Possible Risk of Irreversible Effects
This article was originally published on Manufacturingtalk on 16 Dec 2003 at 8.00am (UK)
Related stories
Guide covers every aspect of industrial degreasing
A definitive guide to industrial degreasing covers every aspect of industrial degreasing from simple maintenance products to advanced process degreasing solutions.
Low alkaline cleaner removes oil, grease, swarf
For use in all types of high pressure spray equipment, including rotary basket and multi-stage washers, a highly concentrated, low alkaline, aqueous cleaner removes oil, grease and swarf.
Methylene chloride also requires specialist disposal and storage facilities before, during and after use due to its hazardous nature.
Although most of the Methylene Chloride used in flushing operations evaporates to atmosphere and negates the disposal of large amounts, this contributes significantly to the user's VOC emissions.
However, the ongoing removal of hazardous chemicals such as Methylene Chloride from the workplace and the need to reduce VOC emissions through Health and Safety legislation provides a significant opportunity for Mykal PU Cleaner (SB 6).
Further reading
Spray wash cleaner makes light work of heavy oil
A leading spray wash unit manufacturer in the UK has been very impressed by the performance of a spray wash cleaner that removed a large amount of grease from a very difficult to clean assembly.
Spray wash does not darken NF metals
Spray wash cleaner can provide interstage process cleaning for ferrous and non-ferrous metals without the threat of staining or darkening metals such as copper.
PU Cleaner (SB 6) is a powerful yet safe solvent product for flushing through PU mixing heads.
It contains a release agent that, when used regularly, can prevent the build up of semi-cured PU in the mixing chamber.
It works through a flushing cycle of between 2-5 seconds followed by a 45 second air blast to dry.
PU Cleaner (SB 6) can also be re-used up to 8 times.
Whether removing cast or foam Polyurethanes, PU Cleaner (SB 6) can be separated out from waste collected after the flushing cycle without significant reduction in cleaning power.
This means PU Cleaner (SB 6) can provide a lower overall cost in use compared to Methylene Chloride.
Methylene Chloride can only be used once before being replaced unless expensive recovery equipment is used, whereas PU Cleaner (SB 6) can be re-used several times resulting in less product used, a reduction of VOC emissions, less product purchased, less stock held and less money spent.
While it is recommended users should wear gloves and goggles, PU Cleaner (SB 6) has a low odour and low inhalation index, meaning there is no need for any kind of breathing apparatus.
Overall, Mykal PU Cleaner (SB 6) provides the PU industry with a real and proven alternative to Methylene Chloride in terms of performance, economy and greatly improved environmental health and safety. Request a free brochure from Mykal Industries ...
• Mykal Industries: contact details and other news
• Email this article to a colleague
• Register for the free Manufacturingtalk email newsletter
• Manufacturingtalk Home Page
Search the Pro-Talk network of sites
