QUALIFICATION AND CONFORMANCE TESTING OF CORAL COATING SYSTEMS by PETRONAS RESEARCH & SCIENTIFIC SERVICES SDN BHD TESTED UNDER CORAL PO-10-C-0798-1298 UNDER PETRONAS PAINTING PROGRAM (SPECIAL PRODUCT CATEGORY)
TYPES OF LABORATORY TESTS
TYPE	TEST METHOD	PURPOSE	ACCEPTANCE CRITERIA	TEST RESULTS FOR CORRO - DUR 258 & 561 AT TOTAL DFT OF 800 MICRONS
SALT SPRAY (SCRIBED)	ASTM B117 ASTM D1654 (Proc.A)	To study the creepage resistance of flawed coatings under accelerated conditions of the corrosive environment.	Blast Cleaned Surface 3,000 hr. coating defects as per ASTM D 1654 Proc. A, Rating 4-5 at scribe. Power Tool Cleaned Surface 3,000 hr, coating defects as per ASTM D 1654 Proc. A, Rating 3 at scribe.	Replaced using Cyclic Salt Fog/UV Exposure – ASTM 5894
SALT SPRAY (UNSCRIBED)	ASTM B117 ASTM D1654 (Proc. B)	To observe the performance of coatings subject to accelerated conditions of the corrosive environment.	4,500 hr, coating defects as per ASTM D 1654 Proc. B, area failed Rating No. 9	Replaced using Cyclic Salt Fog/UV Exposure – ASTM 5894
ADHESION	ASTM D4541 ASTM D3359, Test Method A	To give a quantitative indication on the adhesion properties of the coating systems with dft > 200 mm. To give a quantitative indication on the adhesion properties of the coating systems with dft < 200mm.	500 psi (Splash Zone) 300 psi (Atmospheric Zone) To conduct after 7 days cured period from the final coat. For ASTM D 3359 Method A: The acceptance criteria is 3A	1325 PSI (NOT APPLICABLE)
IMPACT	ASTM D2794	To give a quantitative indication of the ability of paints to resist cracking due to impact loading.	18 J (Intrusion)	18 Joule
ABRASION	ASTM D 4060	To assess quantitatively the abrasion resistance of the coatings.	150 mg/1000 cycles / 1kg load using wheel CS10	31 mg Loss @ 1000 cycles
WATER IMMERSION	ASTM D 870	To assess the water resistance of coatings by partial or complete immersion of coated specimens in distilled or de-mineralized water at ambient or elevated temperatures.	6000 hr without any visible coating defects. Rate Scale : 0 - Worse 10 - Best	Rating 10 No Visible Water Defect
CYCLIC SALT FOG/UV EXPOSURE	ASTM D 5894	To observe the performance of coatings subject to accelerated conditions of the cyclic corrosion/UV exposure: · Salt Spray duration 72 hrs · Drying in air duration 16 hrs · UV – A-340 nm duration 80 hrs · 25 cycles at 168 hrs/cycle	4,200 hrs, coating defects as per ASTM D1654 Proc. B, area failed Rating No. 9. Rate Scale : 0 - Worse 10 - Best	UNSCRIBED: Rating = 10 SCRIBED: Rating - 3
NOTE: USERS MAY SELECT ASTM D5894 TEST METHOD TO REPLACE ASTM B117, ASTM D1654 AND ASTM G 26.
**Notes for more detailed test result kindly contact Corroserv