Potable Water Epoxy Resin

But it is notable that west does not recommend epoxy for drinking water tanks because.
Potable water epoxy resin. Tankguard dw passes the strictest requirements for potable water like bs 6920. Provide general information on the fda. Water absorbed in the resins can reduce the glass transition temperature t g of the polymers and make them weaker. Is epoxy safe in water.
For a repair i would use a quality epoxy resin such as west system 105 or something similar. Expected life time of a water pipe of ca. Epoxy coatings are widely used for applications requiring contact with food or potable water. Another thing to consider is whether the chosen epoxy system will be proof against osmotic effe.
The a 6 was developed in the late 70 s and is the most widely specified 100 solids zero voc epoxy for potable water structures with a fast return to service. Epoxy resins are of course not identical to the epoxy. The purpose of this bulletin is to. Modifiers for which compositions have been the regulations regarding the required testing and the approval process for epoxy coatings under each of these areas are different.
Resins can degrade the mechanical properties of the resins li et al. Water can cause the resins to swell and to produce what is called crazing of the surfaces. It seems unlikely you run much risk of making your tank less safe with an epoxy repair the majority of which will presumably be made on the tank s exterior. 50 100 years more and more of these pipes are suffering corrosion and subsequently are leaking or are releasing metal and other contaminants into the drinking water 1 the first use of epoxy resins in drinking water applications was in the uk in the 1970s as the commonly used materials of cement mortar.
The signature product for the potable epoxy line is the aquatapoxy a 6. Potable water epoxy paint potable water ansi nsf standard 61 certification epoxy quick email ph 603 435 7199 est google site search buy on line two stores goto contact page web product catalog progressive epoxy homepage view our video navigation bar replacement data and msds product info epoxy guru help site top selling products favorites. It contains no solvents or flexibilisers such as benzyl alcohol. Potable epoxy resin cipp product.
Aquatapoxy a 6 is certified by iapmo r t to nsf ansi standard 61. Tankguard dw is a solvent free epoxy designed for use in tanks for drinking water. Clean tech pw potable water tank coating food grade 100 solid epoxy coating high build coating system for potable water tanks overhead underground pipeline reservoirs clean tech pw is a two component food grade solvent free coating technology formulated with special grade resin hardener non toxic pigment additives designed for permanent water contact and is an effective.