--- type: "GenericPage" title: "FAQ" description: "Find answers to common questions about our products and services here" canonical: "https://www.nordicgreenproducts.com/faq/" markdown: "https://www.nordicgreenproducts.com/faq.md" site: "https://www.nordicgreenproducts.com" modified: "2026-06-18" --- # FAQ [Home](https://www.nordicgreenproducts.com/) ### What is the freezing point for gels? The freezing point for the Gels is minus 2 degrees. For transport or short time storage, the gels can withstand down to minus 18 degrees. The gels will then freeze to a slush, but will regain its properties when thawed. ### At what temperature ranges can Nordic Green Products Gels be used under? The Lowest recommended temperature is 8 degrees Celsius. Products can be used up to 50 degrees on steel or surroundings. Direct sun should then be avoided. At temperatures more than 30 Celsius, its recommended to increase the thickness of the gel to 5-700 microns to avoid dryout of gel. ### What is the difference between the different GEL products? Nordic Green Products CleanGel and Odin Gel has the same area of use and has the same effect. Shall be used the same way. Both certified as HOCNF Yellow. Nordic Green Products GreenGel has the same effect and will be used the same way as both Odin Gel and Nordic Green Products CleanGel. Only difference is the environment classification. Nordic Green Products GreenGel is certified HOCNF 100% Green. Nordic Green Products UltraGel is more efficient than the other Gels, but contains much more phosphoric acid then CleanGel and OdinGel. ### What brands are you selling? We are offering the following GEL categories: Nordic Green Products CleanGel, Nordic Green Products GreenGel, Nordic Green Products Ultra Gel and Odin Gel. The following FLUID products are available: Nordic Green Products Clean Fluid, Nordic Green Products Green Fluid, Nordic Green Products Ultra Fluid og Odin Fluid. ### Does Nordic Green Products remove oil, grease and similar? Nordic Green Products does not remove oil, grease and similar. Areas with this contamination should be cleaned with a suitable detergent before Nordic Green Products is applied. ### What is the theoretical cover of Nordic Green Products Gels per m2? Normal use will be 0,4 - 0,5 litre per m2. For easy cleaning, it will be 0,2 - 0,3 litre per m2. If Gel is exposed to direct sunlight and high temperatures, a thicker layer should be used, alternative to cover the exposed area. ### Does Nordic Green Products Gels have corrosion protective properties? Nordic Green Products Gels has no corrosion protective properties, it just removes the corrosion and does not protect from new corrosion. ### What is the different packing sizes available for the Gel? Nordic Green Products Gels is available in 1000 L IBC container, 20 L & 5 L UN approved plastic cans. ### Does Nordic Green Products Gels remove other contaminations than corrosion? Yes. Nordic Green Products Gels removes salts, humus, calcium, magnetite, barnacles, concrete remains and others. ### Can Nordic Green Products Gels be used on all materials/surfaces? Nordic Green Products Gels can be used on most surfaces, carbon steel, painted surfaces, plastic, aluminium, rubber, GPR, gaskets etc. It is recommended to always perform a test on a small area before applying on a large scale. The exception is galvanized surfaces, metalized surfaces with zinc and surfaces with zincethylsilicate. Nordic Green Products Gels is NOT advised to use on these surfaces. ### Can Nordic Green Products Gels be used on stainless steel? Nordic Green Products Gels is well suited to remove contamination on stainless steel. It may be an alternative to traditional acid washing. It is recommended to always perform a test on a small area before applying on a lagre scale. ### Can Nordic Green Products Gels be thinned? No. ### How to remove Nordic Green Products Gels? Nordic Green Products Gels is removed most efficiently by use of HP hot water, 300-500 bar. Less pressure and temperature can be used, but is not as effective. ### How long must the Gel stay on the surface to remove corrosion? Light corrosion will need approximately 12 hours. Medium may need 24 hours. If severe corrosion, the treatment may need to be repeated and/or other methods to be considered. ### How to apply Nordic Green Products Gels? Nordic Green Products Gels is recommended to be applied by HP pump (regular paint pump) to achieve the recommended thickness. Smaller areas can be applied by brush/roller, make sure an even and correct thickness is achieved. ### What is the difference between the Fluid products? Nordic Green Products Clean Fluid and Odin Fluid has the same area of use and has the same effect. Shall be used the same way. Both certified as HOCNF Yellow. Nordic Green Products Green Fluid has the same effect and will be used the same way as both Odin Fluid and Nordic Green Products Clean Fluid. Only difference is the environment classification. Nordic Green Products Green Fluid is certified HOCNF 100% Green. Nordic Green Products Ultra Fluid is much more effective than the other Fluid Products, but contains much more phosphoric acid then Clean Fluid and Odin Fluid. ### Does Nordic Green Products Fluids have corrosion protective properties? Nordic Green Products Fluids has no corrosion protective properties, it just removes the corrosion and does not protect from new corrosion. ### Can Nordic Green Products Fluids be used on all materials/surfaces? Nordic Green Products Fluids can be used on most surfaces, plastic, aluminium, rubber, GPR, gaskets etc. The exception is galvanized surfaces, metalized surfaces with zinc and surfaces with zincethylsilicate. Nordic Green Products Fluids is NOT advised to use on these surfaces. ### Does Nordic Green Products Fluids remove other contaminations than corrosion? Yes. Nordic Green Products Fluids removes salts, humus, calcium, magnetite, barnacles, concrete remains and others. ### Can Nordic Green Products Fluids be used on stainless steel? Nordic Green Products Fluids are well suited to remove contamination on stainless steel. It may be an alternative to traditional acid washing. ### Can Nordic Green Products Fluids be dilluted? Yes. Nordic Green Products Fluids is to be dilluted to 30%. A 30 % solution is normally the best mix for most contaminations. ### How to remove Nordic Green Products Fluids? It is removed by use of water. ### How long must the fluid work to remove corrosion? Normal corrosion is removed within 24 hours. Light corrosion and rust stains about 12 hours. Efficiency is dramatic improved with circulation of the fluid. If temperature is increased to 40-60 degrees C, a much better efficiency is also achieved. ### What is the area of use for Nordic Green Products Fluids? Fluids are used to remove corrosion and other deposits inside of pipes, coolers etc. Use in diptrays is also commonly used. ### What packing sizes are available for Nordic Green Products Fluids? 1000 L IBC container, 20 L can and 5 L can.