Protal 7200 Coverage Calculator

Protal 7200 Coverage Chart

     A couple of disclaimers first:  There are many factors that will determine how many field joints can be coated with a liter of Protal 7200 epoxy.  Like all epoxies, the ambient temperatures will play a role (the hotter it is outside, the hotter the pipe is etc, the faster the epoxy will cure).  In addition, humidity, properly mixing both components of epoxy and the temperature of the epoxy itself will play a role in determining cure time.  Cure time can be directly translated into pot life (for the most part) and pot life is likely going to determine how many field joints can be coated with Protal 7200 more than actual epoxy volume will (at least where smaller pipe diameters are concerned). 

     For that reason, most all epoxies manufacturers out there (if they are being honest) will advise that people using liquid epoxy coatings for pipelines figure in 25-35% 'wastage'.  This is found mostly in the epoxy that is left partially cured in the bucket.  Part of that 25-35% is ultimately found on the ground beneath the field joint.  So for all of those reasons - this chart is to be taken with a large grain of salt. 

     In tomorrow's article, I will discuss further how to maximize your efficiency with Protal 7200 epoxy usage.  Again:  for smaller pipe diameters, I think this chart is just a little bit too 'optimistic'.

Protal 7200 in a 1 Liter Kit (the most commonly used size)

Protal 7200 Weld Joint Coverage

with Standard FBE Cutbacks (2-3" per side)

4.5" OD ----- 1 Liter of Protal 7200 can coat as many as 9 field joints in a 25-30 mil thickness

6.625" OD ----- 1 Liter of Protal 7200 can coat as many as 6 field joints in a 25-30 mil thickness

8.625" OD ----- 1 Liter of Protal 7200 can coatas many as 4.5 field joints in a 25-30 mil thickness

10.750" OD ----- 1 Liter of Protal 7200 can coat as many as 3.6 field joints in a 25-30 mil thickness

12.750" OD ----- 1 Liter of Protal 7200 can coat as many as 3 field joints in a 25-30 mil thickness

16.0" OD ----- 1 Liter of Protal 7200 can coat as many as 2.25 field joints in a 25-30 mil thickness

20.0" OD ----- 1 Liter of Protal 7200 can coat as many as 1.8 field joints in a 25-30 mil thickness

24.0" OD ----- 1 Liter of Protal 7200 can coat as many as 1.5 field joints in a 25-30 mil thickness

30.0" OD ----- 1 Liter of Protal 7200 can coat as many as 1.2 field joints in a 25-30 mil thickness

36.0" OD ----- 1 Liter of Protal 7200 can coat as many as 1 field joints in a 25-30 mil thickness

42.0" OD ----- 1 Liter of Protal 7200 an coat as many as .86 field joints in a 25-30 mil thickness

48.0" OD ----- 1 Liter of Protal 7200 an coat as many as .75 field joints in a 25-30 mil thickness

4.5" OD ----- 1 Liter of Protal 7200 can coat as many as 4.5 field joints in a 45-60 mil thickness

6.625" OD ----- 1 Liter of Protal 7200 can coat as many as 3  field joints in a 45-60 mil thickness

8.625" OD ----- 1 Liter of Protal 7200 can coat as many as 2.25 field joints in a 45-60 mil thickness

10.750" OD ----- 1 Liter of Protal 7200 can coat as many as 1.8 field joints in a 45-60 mil thickness

12.750" OD ----- 1 Liter of Protal 7200 can coat as many as 1.5 field joints in a 45-60 mil thickness

16.0" OD ----- 1 Liter of Protal 7200 can coat as many as 1.125 field joints in a 45-60 mil thickness

20.0" OD ----- 1 Liter of Protal 7200 can coat as many as .9 field joints in a 45-60 mil thickness

24.0" OD ----- 1 Liter of Protal 7200 can coat as many as .75 field joints in a 45-60 mil thickness

30.0" OD ----- 1 Liter of Protal 7200 can coat as many as .6 field joints in a 45-60 mil thickness

36.0" OD ----- 1 Liter of Protal 7200 can coat as many as .5 field joints in a 45-60 mil thickness

42.0" OD ----- 1 Liter of Protal 7200 can coat as many as .43 field joints in a 45-60 mil thickness

48.0" OD ----- 1 Liter of Protal 7200 can coat as many as .375 field joints in a 45-60 mil thickness