Product category:
Cleaning media and cleaning systems
News Release from: MacDermid | Subject: MaStrip degreasing fluid
Edited by the Manufacturingtalk Editorial
Team on 28 February 2006
Cleaning fluids are free of chlorinated
solvents
To remove organic coatings from metal components, cleaning products that are free from aromatic and chlorinated solvents and amines or acids can replace trichloroethylene and methylene chloride.
MaStrip is the ideal replacement for trichloroethylene and methylene chloride used in the removal of organic coatings from metal components The Solvent Emissions Directive (1999/13/EC) aims to reduce the effect of volatile organic compounds on our environment
This article was originally published on Manufacturingtalk on 19 Nov 2007 at 8.00am (UK)
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In particular methylene chloride (classified as R40 -limited evidence of carcinogenic effects) and trichloroethylene (classified as R45 - may cause cancer) are likely to be of concern to metal painters.
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These two products are well known for their degreasing capability and replacements, such as MacDermid's New Dimension ND-7 Supreme cleaner have been available for some time for this application.
It is in the use of these solvents for removing paints and lacquers where it has been difficult to find a good alternative.
* MaStrip - the MaStrip products from MacDermid now provide that alternative.
MaStrip CE and MaStrip CF are free from aromatic and chlorinated solvents as well as amines or acids.
They are supplied ready to use by immersion, removing a wide variety of paints, powder coatings and lacquers.
The products are designed for use on all metals, including light alloys, and can be heated to speed up stripping.
Both products offer a long tank life.
During use the MaStrip product is used to replace drag out losses and a periodic desludge of the tank removes the build up of paint residues.
After desludge the clean solution is returned to the tank ensuring an extended bath life and economical operation.
After stripping the components are rinsed off with water leaving a clean surface ready for reprocessing.
* Safe for use on zinc based die castings - traditional paint strippers are suitable for steel and other robust metals, but light metals can suffer base metal damage to a greater or lesser degree.
Quite often zinc based die castings are thrown away rather than stripped as the available strippers attack the base metal rendering it unsuitable for repainting.
MaStrip CE can now save this waste.
Zinc and aluminium die castings can be stripped using MaStrip CE without any attack on the base metal.
After water rinsing the components are clean and water break free, ready to be reprocessed.
This also applies to electroplated parts, e g, a zinc plated and passivated part can be stripped, without attack of the zinc plate or the passivate, allowing rapid reworking of the part.
* Stopping off lacquers - stop off lacquers are applied to allow selective chemical treatment of the metal, e g, anodising, selective etching, chemical milling or electroplating.
By their nature, these lacquers have to be chemically resistant and quite often hot trichloroethylene is used to remove them.
Mastrip CF provides a viable alternative to trichloroethylene.
It is capable of stripping a wide variety of stop off lacquers from steels, aluminium and other metals without attack of the base metal or any electroplated or anodised coating.
Mastrip CF will also remove spray, dip and electrophoretic lacquers leaving a clean surface ready for reprocessing.
* Recycling opportunities - the use of MaStrip strippers opens up many avenues for recycling.
Many manufactured items are taken out of service long before the metal hardware is at the end of its useful life, but stripping and reuse has not been considered due to environmental or economic issues.
Using MaStrip products the metal components can be repainted and reused saving time, energy and cost; and at the same time contributing to recycling obligations required by the EEC.
As examples alloy car wheels, architectural components and pub gaming machines can all be given a timely makeover and a new lease of life, at a fraction of the new part cost. Request a free brochure from MacDermid ...
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