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| Powercrete |
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Setting the Standard
Since 1980 Powercrete® epoxies have
demonstrated strength and integrity as
revolutionary liquid coatings for corrosion
prevention in the pipeline industry. Leading
scientists and researchers have further
developed the Powercrete® line in
response to application demands. Today,
owners and contractors choose Powercrete®
because they are confident in its dependable
and reliable performance.
Choosing Powercrete® means you are
selecting the leading liquid epoxy that
has set the standard for the industry.
Powercrete® provides superior adhesion
and abrasion resistance to protect valuable
assets. Powercrete® is impervious
to soil stress and is compatible with
FBE and CTE line coatings.
Powercrete® coatings are field friendly,
easy to apply and cost effective. All
Powercrete® formulations can be spray,
roller or brush applied and are available
in a variety of colors.
Lifetime Solutions For Corrosion
Prevention
Manufactured by Tyco Adhesives
Corrosion Protection Group, a leading
global supplier of corrosion prevention
solutions, Powercrete® offers a variety
of formulas for specific applications.
When applied correctly, Powercrete®
will outlive the useful life of the pipe
or tank on which it is applied.
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| Corrosion
Prevention Coatings |
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 Ideal
for coating girth welds, bends, fittings
and elbows |
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New
high-build, fast setting formulations |
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ID coatings for flow efficiency |
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Cost
effective joint coating for FBE coated
pipe |
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| Directional
Drill Coatings |
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Abrasion resistant overlay (ARO) applied
over FBE |
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Extremely
high adhesion to the FBE mainline
coatings |
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Exceptional
abrasion and impact resistance |
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Flexible
application in the field or in the
plant |
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| Rehabilitation
Coatings |
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Bell hole rehab long or short pipe
sections |
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Cost
effective recoating solution |
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Field-friendly
and easy to apply |
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World
class manufacturer's Applicator Certification
Program |
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| Offshore
Coatings |
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Risers and spans for offshore structures |
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Pile and splash zone protection against
mechanical damage |
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Long-life
alternative to traditional marine
paints |
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High
speed manual and spray application |
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Proven
performance in harsh marine environments |
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| Water, Wastewater
& Tank Coatings |
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OD water pipe - far exceeds AWWA C210
and C222 |
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ID water pipe - NSF 61 approved, potable
water formulations |
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High
build in a single pass |
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Chemical
resistant and non leachable |
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J - 100% solids epoxy
designed as a primary corrosion coat to bare
steel.
Description Powercrete J is the ultimate girth
weld coating for FBE and CTE coated pipe.
J is a single coat, 100 solids, high build
epoxy that coats, repairs and rehabilitates
pipelines operating at maximum temperatures
up to 55ºC (130ºF) and other metal
structures. This 2-component, solvent-free
epoxy can easily achieve a dry film thickness
of up to 20 mils in a single pass.
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Product Applications
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Pipe Bends, Fittings, Valves & Odd
Shapes |
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Pipeline Repair & Rehabilitation
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Girth
Welds / Field Joints |
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Directional
Drilling |
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Water
Pipe OD |
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Any
bare steel structure in need of protection
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Highlights |
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100%
Solids Epoxy No V.O.C.s and no isocyanates |
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Bisphenol A Chemistry Suitable for pipeline
operating temperatures to 55ºC
(130ºF) |
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High Build in a Single Application Cost
saving formulation can build 20 mils
in one pass |
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Same Formula can be Hand or Spray Applied
Flexibility in difficult to coat field
conditions |
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Excellent
Mechanical Properties
Can be used in directional drill and
thrust bore applications |
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Excellent Wetting Properties to Bare
Steel
Exceptional adhesion, cathodic disbondment
and soil stress resistance on bare steel |
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Maximum Temperature:
55 ºC - 131ºF |
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Compatible
Pipe Line Coating Type |
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| No
Preference: |
Yes |
Steel
or Ductile Iron: |
Yes |
| Bitumen: |
Yes |
CTE: |
Yes |
| CAT: |
Yes |
FBE: |
Yes |
| PE: |
Yes |
PP: |
Yes |
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Pipe Outside
Diameter Inches (DN) |
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| No
Preference: |
Yes |
"-2(25-50): |
Yes |
| "-3(50-80): |
Yes |
"-8(80-200): |
Yes |
| "-12(200-300): |
Yes |
2"-20(300-500): |
Yes |
| >12"(500):
Yes |
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Soil Conditions
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| No
Preference: |
Yes |
"-2(25-50): |
Yes |
| Unstable |
Yes |
Offshore |
Yes |
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Pipelaying
Method |
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| No
Preference: |
Yes |
Open
Trench: |
Yes |
| Offshore: |
Yes |
Weight
Coated: |
Yes |
| Directional
Drilling: |
Yes |
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Climate Conditions
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| Sea
Climate: |
Yes |
Land
Climate: |
Yes |
| Extreme
Climate: |
Yes |
NA
(Offshore): |
Yes |
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Thickness |
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No Preference: |
Yes |
High
Build |
Yes |
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Application Guide |
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1.0 Scope
1.1 This application guide details the spray
application for coating the surface of bare
steel pipe or over plant applied or mainline
coatings with
Powercrete J, a new generation of protective
coating material.
1.2 Contractor shall furnish all labor, supervision,
materials, equipment and related hardware
required for completing an acceptable application.
1.3 Coating materials shall be plainly and
permanently marked, stored, and applied in
accordance with the manufacturer's specification
as
directed by the Company's authorized representative.
2.0 Definitions
2.1 Company - The acceptor of the finished
Powercrete J coated pipe, its employees, contracted
inspector, or other authorized personnel.
2.2 Coating Applicator - The company responsible
for the application of Powercrete J coating.
2.3 Manufacturer - The supplier/manufacturer
of the Powercrete J material to be applied.
3.0 Surface Preparation
3.1 The surface to be coated shall be cleaned
of all coatings and free of all contaminates.
Following cleaning, the surface of the steel
shall be
particle-blasted (sand or other suitable material).
The pipe surface shall not be burnished. Steel
surface to be coated shall be cleaned to
near-white, ISO-8501-1, NACE No.2, SA-2 1/2,
SSPS-SP-10 or better. Surface anchor profile
to be 2.5 - 4 mils (63.5 - 101.6 microns)
with sharp
angularity.
3.2 Before applying the Powercrete J coating,
the surface shall be subject to inspection
for appropriate surface preparation.
3.3 The surface of the existing coating that
will be overlapped, if present, shall be tapered,
cleaned, and abraded.
4.0 Coating Application
4.1 Insure that the surface is clean of grease,
oil, saltes and other contaminats. If necessary,
use Acetone, MEK or other suitable solvent.
Perform cleaning when surface is 3°C (5°F)
above dew point, with no surface moisture
present. While not always necessary, preheating
can be
useful just prior to application. To eliminate
moisture, preheat the area to approx. 40°C
(104°F). To accelerate curing, preheat
the area to approx.
90°C (194°F).
4.2 The dry, clean surface shall be coated
within 4 hours of abrasion.
4.3 Spray Application
4.3.1 The Powercrete J components shall be
adequately mixed with no included air using
a shut off valve manifold and 4 x 1/8"
mixers
connected by "L" bolts or equivalent,
with a short whip hose and a 1-M airless gun.
4.3.2 Powercrete J shall be spray applied
to the abraded, dried, cleaned surface, using
adequate atomization.
4.3.3 Powercrete J shall be sprayed over the
entire bare metal surface to a thin layer
of 4-6 mils (101.6 - 152.4 microns) for better
penetration,
then shall be built up to the desired thickness.
4.3.4 Existing coating shall be overlapped
at least 2.54 cm (1").
4.3.5 Coated surface shall not be touched
for at least 4 hours if ambient temperature
is above 21°C (70°F), 5 hours at 16-21°C
(60-70°F). This
curing time can be reduced by applying heat
with a heat gun or shrink sleeve torch. Do
not raise the temperature in excess of 71°C
(160°F). If
torch or heat gun is used, keep it moving
to avoid scorching the coating.
4.3.6 The wet coating shall not be contaminated
with particles such as blowing sand, backfill,
insects or other foreign materials.
4.3.7 Under no circumstances shall the pipe
be installed before the Powercrete J coating
has reached a minimum Shore D hardness of
75.
5.0 Inspection
5.1 All work done shall be subject to inspection
and acceptance by the Company's inspector.
5.2 The Coating Applicator's quality control
inspector shall advise the Applicator's foreman
when conditions exist which adversely affect
the
coating operation with respect to cleaning,
application, or material performance, so that
immediate corrective measures can be taken.
5.3 Holiday checks shall be made using a Hot
Spark Detector. The total voltage used for
holiday checks will be 125 volts per mil and
holidays
found shall be patched as per Section 6 of
this guide. The patched holidays shall be
retested.
5.4 Coating thickness checks shall be made
at an ambient temperature with a magnetic
pull-off film thickness gauge (or other) that
has been
calibrated within the previous 24 hours, or
immediately if mishandled, using a U.S. Bureau
of Standards certified coating calibration
standard.
The thickness of the calibration standard
shall be at the upper and lower end of the
specified thickness range. Thickness measurements
shall
be made in accordance with SSPC-PA2, Section
2. The thickness measurements shall be taken
along the length of each joint of
Powercrete J coated pipe at the 12 o'clock
and 6 o'clock positions.
5.5 Coating hardness checks shall be made
at an ambient temperature with a Shore D Durometer
(ASTM D2240), lab calibrated within the
previous sixty (60) days and verified daily,
in good working condition and with no obvious
damage. The checks shall be made at the 12
o'clock
and 6 o'clock positions on the surface.
6.0 Repairs
6.1 All damage detected by visual and electrical
inspection shall be repaired by the Applicator.
Company approved coating mixtures shall be
used for patching holidays and damaged coating.
6.2 Any areas requiring patching shall be
cleaned of coating by hand or power tools.
Steel surface area should be dry, cleaned,
and patched
with Powercrete J. (see manual/kit application
guide)
6.3 Patches shall overlap the surrounding
undamaged coating by a minimum of 19 mm (3/4").
6.4 Repairs shall be subject to reinspection
at the discretion of the Company inspector.
6.5 Areas not meeting the hardness requirement
shall be removed using a method that will
not damage the pipe.
Tyco Adhesives warrants that the product conforms
to its chemical and physical description and
is appropriate for the use stated on the technical
data sheet when used in compliance with Tyco
Adhesives' written instructions. Since many
installation factors are beyond the control
of Tyco Adhesives, the user shall determine
the suitability of the products for the intended
use and assume all risks
and liabilities in connection herewith. Tyco
Adhesives' liability is stated in the standard
terms and conditions of sale. Tyco Adhesives
makes no other warranty either expressed or
implied. All
information contained in this application
guide is to be used as a guide and is subject
to change without notice. This application
guide supersedes all previous application
guides on this product. |
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