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Paint Repair and Maintenance

FluoroGrip® is used as a repair and maintenance system designed to extend the life of traditional coating systems by repairing damaged and rusted areas while they are small.

Shipboard Testing – Ballast Tanks
(Pressure & Vacuum)

Application / Adhesion Test

  • Main Ballast tanks on a US Navy nuclear submarine
  • Immersion Service – 20 test patches

Set A Applied Successfully

  • Over new epoxy, aged intact epoxy, bare metal prepared by needle
    gunning
  • Around beam edges / angles

Results

  • Test patches still exhibit sound adhesion.
  • Evaluation in July 2001: Removal & recoat Edge sealant
  • August 2002 inspection & evaluation – no apparent change
  • Evaluation in January 2003: Test patches w/ duration of 11 months, 18
    months, and 29 months – All in sound condition

Peel Strength, 180° ASTM D 903-98

Test Method

  • Adhere test strips to a painted panel, then exert a measured force 180°
    to the surface to pull off the strips
  • Set A applied over three different surface preparations (cured AC, tacky
    AC, sanded AC)

Conclusions

  • No apparent differences in adhesion between surface preparations
  • Films show excellent adhesion – Strips elongate prior to adhesive
    failure
  Std Dev (Lb/in)
Dry 0.2
Tacky 0.3
Sanded 0.3

Salt Spray (Fog) Testing ASTM B 117-85

Purpose: Evaluate Adhesion of Appliqué over Anticorrosive
Paint, & in Overlap & Edge Situations

  • Accelerated test – 2000 hours
  • Set A applied over three different surface preparations
    (cured AC, tacky AC, sanded AC)

Conclusions

  • No apparent differences between surface preparations
  • Applique shows slight lifting at scribe due to exposed edge
  • Real-time testing underway
ASTM
Rust D 610
Blisters D 714
Dry
10
10
Tacky
10
10
Sanded
10
10
Control
10
10