- PRODUCT TESTING
USACE Testing
TESLAN® 2-Coat Technology Provides More Active Corrosion Inhibition Vs. Best Available 3-Coat Zinc Systems
The performance of Tesla NanoCoating's 2-coat systems, consisting of TESLAN® ZN Primer (carbon nanotube/Zn epoxy), in both standard and low VOC versions, and TESLAN® Urethane Topcoat or TESLAN® CNT/Aspartic/Fluoropolymer Hydrid Topcoat, were evaluated after extended (5000 hr) salt-fog testing per ASTM B-117. Performance was compared to the best available military/commercial 3-coat systems from two leading suppliers of high performance maintenance coatings. These systems consisted of a primer coating of zinc-rich epoxy (MIL-DTL-24441, formula 159), an epoxy intermediate coat (MIL-DTL-24441, formula 152) and a urethane topcoat. All coatings were applied to cold-rolled steel and scribed to expose the bare steel substrate.
The TESLAN® systems can be seen to offer enhanced scribe line corrosion inhibition vs. the standard systems, which both showed extensive corrosion and lifting from the scribe.
The series of photos below demonstrate firstly why a cathodically active primer is needed for maximum corrosion inhibition. Here the performance of TESLAN® Urethane and TESLAN® CNT/Aspartic/Fluoropolymer Hybrid and coated test panels with and without a primer coat of TESLAN® ZN Primer are compared following 2000 hrs of salt-fog testing.
2000 HR SALT-FOG RESULTS
The series of photos below show the improved performance obtained with TESLAN® 2 coat systems vs. the best 3-coat systems from two leading suppliers following 3000 hrs of salt-fog testing.
3000 HR SALT-FOG RESULTS
The series of photos below show the improved performance obtained with TESLAN® 2 coat systems vs. the standard 3-coat systems following 5000 hrs of salt-fog testing.
5000 HR SALT-FOG RESULTS
TESLAN® TOPCOAT TECHNOLOGY OFFERS ENHANCED DURABILITY
TESLAN® topcoat offerings include TESLAN® Urethane Topcoat, a high performance urethane complying with MIL-PRF-85285D, and TESLAN® CNT/Aspartic/Fluoropolymer Hybrid Topcoat, a high performance polymer-hybrid system that incorporates carbon nanotubes for enhanced film reinforcement and toughness. The following charts show the result of extended accelerated weathering (QUV chamber, 8 hr UVA-340 @ 60° C, 4 hr condensation @ 50° C) of these products.
