A UNIQUE NON ACID
CHEMICAL CLEANER FOR RUST REMOVING
you use a non-hazardous cleaning fluid which will remove
rust from metal surfaces and also passivate the cleaned
surface, in a unique one-step action? This cleaning fluid
is of approximately neutral pH and, therefore,
requires no pre-neutralisation before disposal.
of its non-hazardous nature, RK2000 is used by leading
chemical cleaning companies as an effective but risk-free
alternative to acids, with the bonus of not requiring any
follow-up passivation treatment. Details of the formulation have
been confidentially discussed with representatives of Thames
Water, Severn Trent Water and Anglian Water, who subsequently
raised no objection to its disposal via the normal sewerage
system. Leading architectural/consulting engineering companies
have also approved the product, one for 'world-wide' use.
cleaning of building water systems
on/line removal of corrosion products from hot and chilled water
of L8 cleaning of cooling water systems
- Boiler cleaning
- Tank cleaning
cleaning of rusted tools and equipment
What is RK 2000?
is an aqueous solution composed of a carefully balanced blend of
non-hazardous complexing and surface-active agents.
How does it work?
permeates into rust deposits, allowing intimate contact of the
complexants, which then take iron into solution by disturbance of
the natural ionisation balance present at the rust/fluid interface.
effect causes loss of cohesion of the rust, with the result that
simultaneously minute particles of rust are also leached out, which
process is assisted by circulation or agitation of the RK2000
overall effect is a 'skimming off' of rust deposits, on a
layer-by-layer basis, in a way which retains the removed rust either
in solution or as a semi-colloidal suspension which minimises the
potential for downstream re-fouling of the system.
How effective is
single application of RK2000 should remove all but the most aged and
intractable rust deposits
effect of RK2000 is well illustrated by the photographs shown here.
colour photograph shows both halves of a rusty steel bolt, which had
been suspended in a 5% solution of RK2000 in ordinary tap water. No
heat was applied, but the solution was stirred for approximately 2
hours. On removal from the RK2000 solution the immersed section was
simply rinsed down briefly with water. The photograph was actually
taken several months after the cleaning, and illustrates the highly
passive nature of the cleaned section, which is a unique feature of
the use of RK2000. 'Flash-rusting', as commonly seen when using
mineral acids is unknown with RK2000.
photomicrographs(20 magnifications) of the test specimen show
clearly the beneficial effect of the RK2000 cleaning solution.
Micro-analytical examination of the cleaned section showed no
detectable elements other than the iron of the base material. The
high passivity of the cleaned metal is considered to be due,
therefore to its extreme cleanliness.
future in rust protection and removal, is available only from SCI-CHEM
International, an associated company of Alan Edwards & Partners.
further details and to order RK2000, see our contact