DeconPeel coating traps and encapsulates a wide spectrum of radioisotopes and chemicals in easy to apply , no requirement for pre-preparation process allowing easy and safe disposal without the use of water. When dry, the product locks the contaminants into a polymer matrix. The film containing the encapsulated contamination can then be peeled and disposed.

General chemical is a worldwide supplier of decontamination coating to reduce and clean up hazardous residues in nuclear facilities set a new standard of excellence. These proven coatings and cleaners are innovative, economical and easy-to-use. They are environment friendly, safe to apply and easy disposal. our products  will work in your  Nuclear Decommissioning, Decontamination and Reutilization projects.

The uses of DeconCoat can be considered in applications such as these:

1 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 Deconcoat peelable coating is first applied to the clean surface and as this becomes contaminated by the ensuing process subsequent layers of Deconcoat are applied to encapsulate and tie down the contamination. The whole strippable film may then be stripped away for disposal as dry waste.  

2 Containment or tie down of radioactive contaminants. A Deconcoat Peelable coating is used to 'tie down' surface contamination on objects or areas being decommissioned, dismantled or removed for disposal. The coatings are available in a variety of colors for application by spray, roller or brush.

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? "

2.We are working in a facility contaminated with Tritium. We have to purchase a portable gantry crane to move some equipment around. Our client ( National Laboratory) wants to be able to reuse this crane in another facility afterwards and wants to minimize the decontamination efforts and the potential for not being able to release the crane to the other facility later down the road.
The crane is a typical gantry crane. That is, a horizontal top beam (steel) that holds the chain hoist mechanism) approximately 9 feet across and the end structures (all steel) tri-pod frames on castors for easy rolling. The crane can be adjusted to a maximum height of 12 feet. The moving parts consist of the hoist mechanism traveling across the upper horizontal beam. The chain in the hoist mechanism is the only other moving part. The paint will be applied primarily to the structure itself. We will probably cover the hoist mechanism in plastic to minimize contamination. We anticipate that we will have to perform some decontamination, but the idea is to try and keep the basic structure of the crane clean after stripping off the paint.
We realize that Tritium is different than other radioisotopes since it is not a particulate, but rather a gas. Nevertheless, the client wants the paint to try to minimize decontamination efforts.

Our Recommendation: Deconcoat  2050 is a water based peelable coating promoted for the protection of metal from rusting. This coating cures by water evaporation a goes from white to clear. The coating can be applied to metal, glass, marble and painted semi or glossy surfaces.

In this case, we suggest of applying a coat of  2050, about 6 to 10 mils, and start using your equipment. When the job is finished apply a second coat, sandwiching contaminates, and let the coating dry to clear state. Pry a corner and peel the coating off. Dispose of the coating and contaminates properly. Camel hair brush is the best.

3. we are a Finnish engineering company providing services and products for nuclear industry. Our client for which we have provided a decontamination system to clean walls of the reactor pool has now asked us to provide also a system to clean reactor vessel flange surfaces which can be seen in the photo attached. The areas to be cleaned consists of the floor area (25 m2 x 2 units) shown in the photo except the area covered with a blue plate. The bolt holes will be equipped with flat blinds during the cleaning.

We have learned that you provide strippable coatings for nuclear industry. We are interested in DeconCoat 2050 and we have couple of questions about it.

1. What is the price of six gallons of DeconCoat 2050?

2. What is the recommended way to apply DeconCoat 2050 to reactor vessel flange surface?

Our Recommendations : DECONCOAT 2050 is a water based peelable coating to be applied by airless spray to a minimum wet thickness of 12 to 14 mils. The product cures by water evaporation and transforms from white to clear. Clear coating is hard a flexible. The cure process encompasses most particles into the coating and can be disposed when Deconcoat is peeled.

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 dissolved 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.
2. Typical customer Inquiry: Dear Sirs, We at the A Nuclear Power Station are in the middle of various de-commissioning activities on site prior to entering a long-term period of care and maintenance.

One of the next activities to be performed is the draining-down of the concrete built reactor cooling water ponds.

Our technical guys have suggested that there might be the need to apply a Temporary Protective Removable Coating to the wet concrete surfaces of the ponds after drain-down and power spray cleaning to contain any contaminated surface particulate and also prevent airborne contamination.

This temporary coating would later be peeled away taking any loose particulate with it to be replaced with a more permanent and hard-wearing coating.

We found your company name via the internet and in the first instance would be grateful if you could advise which office/contact point within your group would be the best recipient when we are ready to issue a further detailed enquiry.
If you can offer any suitable product(s) or other related advice etc then we'd be pleased to hear from you.
Our recommendations :4580 and 4000 are water based peelable coatings that can be applied to a moist concrete surfaces. Both products cure upon water evaporation. The cured coatings are clear(uncured coatings are milky)and water resistant.
Peeling can only be accomplished with cured coatings. We recommend a minimum of 12 mils of wet coating to accomplish good peel and debris pickup. 

3. Hi ,the company I work for Engineering Services Ltd have been commissioned by one of the UK’s major nuclear companies to produce a report on decontamination of low Level Waste (LLW) metals which will arise from the decommissioning of their nuclear facilities.

 The object of the report is to look at, assess and recommend the different techniques/equipment which is widely available in the market place (Nuclear and Non-Nuclear) for decontaminating various ranges of metals i.e. mild steel, stainless, copper and lead etc. with varying degree of LLW contamination and to choose the best options for each type of metal. The level of contamination on the metals range from contaminated deposits i.e. (dust, grime and rust etc) to minor surface impregnated contamination (depth of contamination penetration is unknown at this stage). All the equipment we assess in our optioneering study will feature within the final report submitted to our customer.

The decontamination options available are to: a. Reduce the contamination levels to enable the transportation of the metals to go to a metal melt facility. b. Reduce the contamination to an acceptable level as to go off site as free release material back into the market place. Total amount of metal approx 14,000 tonnes varying in size but can be size reduced to suit the equipment.

The options / criteria’s for each equipment we will be assessing against are as follows; • Process Parameters • Secondary Waste Arisings • Key Instrumentation and Controls • Process Limitations (Advantages/Disadvantages) • Equipment Specification • Process Health and Safety/Risks – very important • Material Compatibility • Efficacy • Process Downtime • Capital / Operating Costs – very important • Volume Reduction • Operator Dose Exposure – very important • Handling and Preparation • Range of Contaminants Removed – very important • Volume of Free Release • Where Used / Industry • Reference / Source • Portability of the equipment – very important Note that all the headings above you may not be able to answer/complete but as much information as possible would be appreciated.

Our Recommendations :  We have many products for use in the decontamination. We will concentrate on just a few of them: 

DECON COAT 2050 is a water based peelable coating with ZERO halogens and ZERO VOC.  This coating is normally applied with airless spray to a minimum of 10 mils wet coating, about when the        hiding of the substrate occurs. The coating cures upon water evaporation to a clear, hard and flexible water resistant film. The product is used as a protector ofl objects from contamination by covering the object that will be contaminated and then spraying this coating again to sandwich the contaminants. Removal is by peeling.  Dispose properly. DECON COAT 2050 is also used on contaminated surfaces for decontamination.  Apply the product with airless spray till hiding. Let the water evaporate. The coating encompasses contaminants into the film mass and removal is by peeling.

 DECON PEEL 5201 is same as above but the film cures to a white glossy film. Both products are formulated to protect metals from oxidation.

 DECON PEEL 5900  is also a water based peelable coating that can be used on most smooth surfaces for decontamination. This product has been used successfully to decontaminate odors in the laboratory that regular cleaning and odor spray products did not.  The coating was spread on the contaminated area and allowed to dry. On peel it picked up contaminants and the odor was eliminated on film disposal.

1. What are the types of surfaces your respective coatings are suitable    for? Virtually any non porous surface. The DeconPeel 2630 would be considered a universal surface coating (for non porous surfaces) including glass, metal, acrylic and plastic. The DeconPaste 2510 is more suited for rough surfaces such as porous cinder block. 

 2. What radioactive particles are each coating capable of    decontaminating? Our coatings will remove all radioactive particles regardless of type.

   3. As your coating needs to be applied to the surface prior to any    decontamination incident, please advise on the renewal period for the    coating. In addition, is there any need for maintenance after the first    coating. These coatings can be applied AFTER contamination has occurred as well as before. The coating can be applied to contaminated surfaces. The contaminants are encapsulated by the coating as it cures. Once the coating is cured it can be peeled with the contaminants entrapped within the coating.If coating the surface prior to contamination then the contaminants will cling to the coating which can be removed and reapplied as needed.

 4. Are there any recommended environmental conditions to consider during    the application of coating? If the recommended conditions could not be    achieved, how will it affect the performance of the coating? The surface being coated should not have standing or falling water present. The coating cures by water evaporation from the coating so standing water would dilute the coating and inhibit evaporation. Also temperatures below 10C will inhibit the curing process.

 5. Will the coating performance be the same for interior and exterior  applications, given that differences in temperature and humidity come    into consideration? Once cured the coating can withstand outdoor conditions for up to a year. High humidity will slow the evaporation of water from the coating so curing will take longer. Application of the coating is not recommended in temperatures below 10C.

6. Do you have any other such coating products that would facilitate  decontamination of common building materials (i.e. reinforced concrete,    masonry walls, steel, aluminum, etc)? The DeconPeel 2630 will work on all these surfaces. The DeconPeel 2050 would be best for bare metal because it has a built in corrosion inhibitor so it will prevent rust and corrosion under the harshest indoor and outdoor conditions for a year or more. The Decon Paste 2510 is best for rough surfaces such as cinder block.

7. Please advise on the types of facilities/ industries that your   respective products have been used. We have supplied thousands of gallons of our construction related peelable coatings in Singapore to curtain wall manufacturers for high rise glass and aluminum protection. Also to the ocean vessel construction industry at Sembawang Shipyards. There we supplied a Paint Shield coating for the protection of ship hulls during construction. I have attached 2 photos of our coating Paint Shield 4580 being removed from a painted ship hull after 1 year of protection.

8. Please advice on test standards used to measure the coating's  decontamination performance. Our customers have tested for their needs and it is proprietary to their own department and government.

   9. For post-contamination coating application, we understand that the  removal of the coatings is by peeling them off. Please advice on the    curing time/lapse time after application before the coatings can be peel    off. Once the coating is fully cured it can be peeled. This can take from 40 minutes to a couple hours. If the time is available I advise waiting 24 hours.

10.      What is the indicative cost per unit area for the supply and    application of your respective coatings? Based upon the recommended application thickness of 8 -10 mils wet the cost per square meter is approximately $2.00 to $2.35. This does not take in to account transportation cost.

11.      If we are interested in the product, please advise on how we  can procure it. You can contact me directly. We accept credit card payments or wire transfer.

12.      Do you need any export license/government approval? No. We ship regularly to Singapore as well as 60 countries around the globe. All these products are water based, non hazardous and contain zero VOC'S.