water tank
water tank
(OP)
what kind of coating is suitable for internal wall of water tank?
TDS= 30
pH:6.5
T= 25 oc
TDS= 30
pH:6.5
T= 25 oc
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RE: water tank
What grade water? (Potable? Boiler make up - not likely) Fire fighting?)
RE: water tank
Water tank is made of carbon steel and is put on the ground.
this water go to osmosis stage to purify for boiler water.
thank you so much
RE: water tank
Cheers,
gr2vessels
RE: water tank
AND external (wall of tank and floor of tank to ground!) corrosion. Probably some galvanic corrosion going on too depending on your tank and the type of ground water levels and ground ions.
RE: water tank
what kind of paint do you suggest?
Is marine paint suitable?
external wall don't have major corrosion.
thank you
RE: water tank
As I said before, if you select the paint based on this forum advice, you could go wrong. The advice must come from your local paint supplier, who can ask relevant questions on the suitability of a paint, based of available application method, local environmental conditions, etc. You're asking about marine paint;- there is a miriad of marine paint suitable for salt water (sea water). You don't need to protect the inside for sea water, but yuo need a paint which is professionaly applied, tested and checked for imperfections (holidays), otherwise the tank will corrode in short time. As basic suggestion, a zinc rich primer (minimum 70-80% solids content), an epoxy intermediate coat suitable on top of this zinc primer and a good quality of organic top paint suitable for submerged application. On the exterior a zinc rich primer and polyurethane top coat. The paint specification shall be in accordance with the paint supplier instructions.
Cheers,
gr2vessels
RE: water tank
RE: water tank
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The RO treated water will have a slightly depressed pH which will be slightly more corrosive. You should run that by the coatings rep.
You should consider the use of a 304 SS tank or an aluminum tank. These tanks would probably be more cost effective in the long run.