Powercrete J - Technical Data

Powercrete J is a ceramic modified epoxy design for mainline and field pipeline joints to prevent corrosion and bring abrasion resistance to your applicaiton.

Powercrete J is a solvent free epoxy polymer concrete mainline pipeline coating operating at a maximum temperature of up to 60C (140F).  Used for pipeline repairs, new constructions and rehabilitation projects, Powercrete J is used as the ultimate girth weld coating for FBE and liquid epoxy coated pipes.  

Performance Data

Property	Test Method	Value
Specific Gravity	ASTM D 3289-03	1.70
Compressive Strength	ASTM C 109	16,000 psi (110 MPa)
Hardness	ASTM D 2240	86 ±3 Shore D (Full Cure)
Thin Film Water Absorption	ASTM D 570	< 0.5%
Dielectric Strength	ASTM D 149	485 Volts per mil (19 Volts per µm)
Resistance to Acids and Alkalis	ASTM C 581	Excellent
Cathodic Disbondment	ASTM G8	5 mm (T= 25°C/77°F, 90 days, -1.5V) DTM
Cathodic Disbondment	ASTM G95	4.1 mm (T= 60°C/140°F, 30 days, -1.5V) DTM
Flexibility	NACE SP 0394	< 0.75 °/PD at 25 °C/77 °F at 25 mils < 0.75 °/PD at 0 °C/32 °F at 25 mils
Impact Resistance	ASTM G 14	>66 in.lb (7.4 Joules) at 25 °C (77 °F) at 20 - 40 mils (500-1000 µm)
Tensile Adhesion Steel	ASTM D 4541	3850 psi (26 MPa) at T= 25°C/77°F
Tensile Adhesion FBE	ASTM D 4541	3280 psi (22 MPa) at T= 25°C/77°F
Abrasion Resistance Taber Test	ASTM D 4060	>1250 cycles per mil (>49 Cycles per µm)
Mix Ratio	-	Volume 4.8:1 Weight: 100:11.2

Performance Data Summary – CSA Z 245.30 Table 1

Test	Acceptance Criteria	Test Result	Standard
Thickness (μm)	800 – 1000	800 - 1000	SSPC-PA 2
Shore D hardness	*	85	Clause 12.1 of this Standard
24 h cathodic disbondment at 65°C, -3.5V	6.5 mm Maximum radius	0.3 mm, Pass	CSA Z245.20, Clause 12.8
28 d cathodic disbondment at 20°C, -1.5V	8.5 mm Maximum radius	0.01 mm, Pass	CSA Z245.20, Clause 12.8
28 d cathodic disbondment at 55°C, -1.5V	10 mm Maximum radius	1.89 mm, Pass	CSA Z245.20, Clause 12.8
28 d cathodic disbondment at 60°C, -1.5V	10 mm Maximum radius	2.35 mm, Pass	CSA Z245.20, Clause 12.8
0.75° Flexibility at 0°C	No cracking	No cracking, Pass	CSA Z245.20, Clause 12.11
0.75° Flexibility at 23°C	No cracking	No cracking, Pass	CSA Z245.20, Clause 12.11
1.5 J impact resistance, -30°C	No holidays	No holidays, Pass	CSA Z245.20, Clause 12.12**
1.5 J impact resistance, 0°C	No holidays	No holidays, Pass	CSA Z245.20, Clause 12.12
3.0 J impact resistance, 0°C	No holidays	No holidays, Pass	CSA Z245.20, Clause 12.12
Adhesion to steel substrate	Rating of 1 or 2	Rating “1”, Pass	ISO 21089-3, Annex C
Adhesion to existing coating	Rating of 1 - 3	Rating “1”, Pass	ISO 21089-3, Annex C
28 d adhesion to steel at 75°C	Rating of 1 - 3	Rating of 1-2, Pass	CSA Z245.20, Clause 12.14
28 d adhesion to existing coating at 95°C	Rating of 1 - 3	Rating of 1-2, Pass	CSA Z245.20, Clause 12.14
Gouge Resistance	Report Value	24.5 mil	CSA Z 245.20, Clause 12.15

Inspection Parameters

Test	Standards	Observations	Value
Surface Profile Steel	ASTM D 4417, NACE SP 0287	Replica tape Method C is preferred. The frequency of 3 test per area evaluated.	Range of 2.5 – 4.5 mils
Surface Profile FBE	ASTM D 4417, NACE SP 0287	Method C is preferred. Profile shall be dense and angular	Range of 2.0 – 4.0 mils
Sweep blasting	-	Sweep blasting shall completely de-gloss the surface with a dense anchor profile. The use of replica tape to estimate the anchor profile is preferred.	-
Surface Contaminants Before Coating	ISO 8502-3	Clear tape test on FBE and Steel Surface	Cleaner than level 3 as per the standard
Dry Film Thickness	SSPC PA2, ISO 19840, ISO 2808	Evaluation of FBE layer is critical for the evaluation of the System	Most applications 20 - 60 mils (500 - 1500 µm)
Hardness Full Cure After 7 days	ASTM D 2240	Follow standard recommendations. Thickness of 40 mils minimum at 23 – 25°C (73 – 77°F)	Minimum results of >80 Shore D
Full Cure Discontinuity Test (Holiday)	NACE SP 0188, NACE SP 0274, NACE SP 0490, ISO 29601, ASTM D 5162	High Voltage test modality. On dry coating surfaces. Follow Standard Procedures	125 Volts per mil, 5 Volts per µm Recommended
Tensile Adhesion Test	ASTM D 4541, ISO 4624	Test performed at temperatures of 20 to 25°C (70 – 77°F) Select the fixture (dolly) with pipe diameter, (14 mm preferred)	> 1850 psi (12.5 MPa)