|
Thermacote repairing Nitrile
Rubber Insulation
on a Gas Production Vessel –
October 2003
| |
 |
Click
here to open a printable
version of the whole Thermocote
trial on a GP3 |
|
Problem
-
Nitrile Rubber Insulation was fully
saturated with water and creating a significant CUI problem.
-
Replacement of the lining required temperature to be dropped
from >80oC to <40oC this would require a process shut
down.
Solution
A
system of RL 500 PF and Thermacote RA 1000T was specified because both can be
applied without a process shut down:
-
RL 500 PF is a moisture and surface tolerant
primer that requires little surface preparation.
-
Thermacote RA 1000T can be applied at temperature up
to 150o C and
would not need a process shut during application.
Thermacote Specification
-
Water blast to remove corrosion products.
-
Apply 1 coat Epochem RL500PF (2 pack Zn-MIO epoxy) to wet
substrate
-
Allow to part cure.
-
Apply Thermacote insulation in 10 – 15mm thick slabs made on
site using a light weight flexible moulding process.
-
Temperature fall from 80 – 85oC to 35 – 40oC
in <5 minutes.
-
Glue nitrile rubber to Thermacote.
|
|
|