We have been asked this question many times and the answer is always the same:
"Why do you use epoxy coating instead of galvanizing or powder coating your filters?"




There are many benefits to using epoxy coatings over other protective coatings available. Epoxy coatings are readily available in many formulations developed specifically for most applications. There is likely an epoxy coating available to provide the proper protection of your filter against the corrosive properties present in many irrigation sources and fertilizers, which can harm other paints and hot dip galvanizing.

   

Why not galvanizing? The United States is eliminating lead from hot dip galvanizing baths due to its toxic nature. Removing the lead reduces the fluidity of the bath, causing uneven coating and premature breakdown of the material. Other metals have been added to attempt to compensate for the loss of the lead, but we believe the end product is inferior and therefore advise against its use. Acidic water and soft water are particularly harmful to galvanized coating which can reduce the life from 8 to 12 years down to as little as 3 to 4 years! Also, some liquid fertilizer manufacturers specifically advise against the use of galvanized and copper piping with their products, but with epoxy coatings, you needn't worry!

 

Doesn't epoxy oxidize and chalk? Well, yes, it does, but this does NOT affect the ability of the product to protect the filter. Also, clear and color enamels are available to overcoat the epoxy on the exterior surfaces which will prevent the oxidation and chalking of the epoxy if appearance is of concern. Unlike hot dip galvanizing or powder coating, epoxy paint can be touched up or sandblasted and recoated.

 

Below is just one example of a CTC filter after more than 22 years of service!! Had the customer elected to refurbish this filter several years ago, this filter may have doubled its life!