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You Are Here: Index > Industrial Coatings |
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Introduction - Products |
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Water Resistant ,Heat Resistant, Alkali resistant, Strippable Coatings, Peelable coatings,
Temporary protective Masking compounds and For Nuclear Industry Applications:
Temporary Protective Removable coatings For
Decontamination , Strippable Coatings Nuclear
decommissioning |
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To Facilitate the decommissioning of nuclear facilities: |
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Strippable Coatings. With this process a plastic membrane or coating (such as polyethylene, or large number of small, spherical silicon carbide pieces polyvinylchloride) is put on the contaminated surface. attached to the ends of a corresponding number of This coating material is best applied with a brush-stiff nylon bristles. The resulting coating is peeled off, loose surface contaminants are removed with the coating.
Strippable coatings are also often used to prevent the recontamination of decontaminated surfaces. This process has been extensively used in the nuclear industry. |
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1-4. Background : |
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Temporary Protective Removable
coatings For Decontamination ,
Strippable Coatings For Nuclear
decommissioning:
When a decision to terminate operations at a nuclear facility is implemented, the building and site must be decommissioned to protect the public and DOD personnel from unacceptable residual contamination. The decommissioning process is intended to render a facility such that it poses no radiation health safety hazards which would limit use or demolition of the remaining facility.
There are two main applications for our strippable coatings in Decontamination process ::
1. As a Peelable coating in order to prevent contamination taking place on the surfaces of objects such as robots, glove boxes or modular containment systems which would otherwise become contaminated by low radiation dust particles.
The Peelable coating is first applied to the clean surface. As this coated surface becomes contaminated by the ensuing process subsequent layers of
peelable coating is applied to encapsulate and capture the contamination. The whole dry strippable film may then be stripped away for disposal as dry waste.
2. As containment or tie down. Our strippable coating is applied used to contain surface contamination is available in many colors and is applied by spray, roller or brush.
Typical customer Inquiry:
Dear Sir / Madam, Please could I have
some more information (Tech data sheet,
MSDS and cost) on your DeconPeel 4580?
Is it suitable for use on concrete
surfaces? If not can you recommend an
alternative? We intend using it to 'tie
down' contamination on the walls of a
cooling pond located on a Nuclear site.
Please contact me if you require any
further information, Thanks for any
assistance you can offer, Design
Engineer.
"I am in
process of developing methods to
decontaminate a process hot cell that
has a film of residual solids left after
the evaporation of Hydroflouric Acid,
Boric acid, Nitric Acid and Aluminum
Nitrate chemicals that contained
relatively high concentrations of
disolved cadmium, boron, uranium and
zirconium. Do you have a product that is
compatible with these chemicals to use
to help strip off and minimize the
contamination on walls and floors made
of welded stainless steel?"
Customer
Inquiry : Nuclear application - a
strippable coating to bind up and help
remove solidified residuals of the
following liquids: Zirconyl Nitrate in
2M Nitric Acid; Aluminum Nitrate 2 M
with 30 g/L cadmium Nitrate;
Hydrofluoric Acid with 12 g/L Boron,
cadmium sulfate, Nitric Acid 13M with 30
g/L cadmium nitrate. These acids would
have zirconium alloys, uranium and
transuranic isotopes dissolved in them.
The materials have dried to a
crystalline powder on sst and hastaloy
surfaces.
Also, small volumes of these liquids
will be spilled on the applied coating
over a period of 12 months prior to
removal.
Do you have a coating that can be
applied over a wet surface? There
appears to be a wet layer at the bottom
of some of the thicker layers of these
materials. Also, we may wash down the
surfaces with high pressure water prior
to applying the coating and do not have
a good means of drying the surfaces
other than allowing the ventilation flow
to dry it out over time. The radiation
levels are relatively high so this
coating will need to be applied be
sprayer using remote manipulators.
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Click here for
Questions About Application & Instructions For Peelable Coatings
Approximate Square Feet Coverage Per Gallon of General Chemical's Peelable coatings: |
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| Water Based coating's Wet films to Apply In Mils |
4.5 |
6 |
9 |
11 |
13 |
14 |
16 |
18 |
21 |
| Square feet of Coverage per Gallon |
401 |
267 |
194 |
155 |
129 |
111 |
97 |
86 |
75 |
| Dry Film Build Required In Mils |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
| Solvent based coating's wet films to apply |
6.6 |
10 |
13 |
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| Square feet of Coverage/Gallon |
250 |
160 |
50 |
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Products |
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Solvent/
Water |
Special Features
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Color/Application |
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| Water Resistant Peelable Coating, Protects: Metals, Glass, Acrylics |
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Click here for Questions About Applying Peelable coatings |
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Peelable Masking Compounds: |
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Approximate Square Feet Coverage Per Gallon of General Chemical's Peelable coatings: |
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Results in a reduction of labor costs by reducing the application time. |
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Once cured, provides an extremely tough, uniform film thickness. |
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Curing time can be cut in half with the use of increasing the temperature to 100F and or process
assistance such as heat lamps,
circulation of air and other factors. |
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Easily removed...peels off in sheets which eliminates messy hand scrapping |
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Safe...non flammable |
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Suitable for all substrates incluidng polycarbonates,plastic and painted surfaces |
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General Chemical has a complete line of Peelable Masks to meet your challenging requirement. If we do not have something to meet your specific requirement, than we will develop it by working with you to meet that need for strippable coating. |
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General Chemical Corp.
12336 Emerson Dr. Brighton, Michigan(MI.) 48116, USA |
| USA: |
866-623-5600 |
| Overseas: |
248-587-5600 |
| Fax : |
248-587-5606 |
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