Coal tar enamel coating as per AWWA C203
Coal tar enamel coating as per AWWA C203
(OP)
Dear members,
A project document requires coal tar enamel coating as per AWWA C203 for underground water piping.
However this is the first time for me to use coal tar enamel coating for underground water piping.
My question is,
What is the benefit of coal tar enamel coating instead of PE or PP coating for underground piping?
Is coal tar enamel coating cheaper than PE or PP coating?
If so, approximately how % is it cheaper?
Thanks...........
A project document requires coal tar enamel coating as per AWWA C203 for underground water piping.
However this is the first time for me to use coal tar enamel coating for underground water piping.
My question is,
What is the benefit of coal tar enamel coating instead of PE or PP coating for underground piping?
Is coal tar enamel coating cheaper than PE or PP coating?
If so, approximately how % is it cheaper?
Thanks...........





RE: Coal tar enamel coating as per AWWA C203
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Coal tar enamel coating as per AWWA C203
RE: Coal tar enamel coating as per AWWA C203
while asphalt enamel may be safer to apply, it is not necessarily any safer to produce as the asphalt tar and vehicle are petroleum distillates refined in much the same way as coal tar. It requires petroleum based vehicle to apply vs heat application of coal tar. Either way, noxious fumes are released, perhaps for a longer period of time with the asphalt enamel. I'm not sure I would recommend PE or PP wrapping alone without some sort of enamel coating.
ht
http://www.lonestarspecialties.net/coaltar.html
RE: Coal tar enamel coating as per AWWA C203
RE: Coal tar enamel coating as per AWWA C203
This is a good thread because it now draws attention to issues involved with pipe coating selection: HSE, cost, reliability, durability, interaction with cathodic protection and so on and so on.
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Coal tar enamel coating as per AWWA C203