Coatings


Coatings

High-performance barrier coatings based on Kraton  SEBS polymers protect metal, concrete and plastic surfaces against damage from water, air and chemicals as well as salt spray and other corrosive elements.  Moreover, coatings formulated with Kraton SEBS polymers retain outstanding toughness and flexibility to resist cracking and ensure a long, maintenance-free service life.

Kraton G SEBS polymers provide outstanding adhesion to metals as well as non-polar materials such as plastics and composites.  The resins can also be blended with Kraton A1536 to produce harder coatings.  Coatings produced using functionalized Kraton FG1901 SEBS and RP6670 SEBS polymers exhibit exceptional substrate adhesion, durability and corrosion-resistance.  Kraton SEBS polymer-based coatings are ideal for the protection of piping, concrete, architectural structures and vehicle undercarriages. The coatings can also be used in building envelope applications such as waterproofing foundations and other structure sections.

Features and Benefits

  • Excellent barrier against air and water incursion
  • Excellent resistance to corrosion from salt spray and chemicals
  • Superior substrate adhesion on metal and non-polar materials
  • Highly elastic for improved toughness

Recommended Grades

Applications

  • Pipe corrosion protection
  • Architectural coatings
  • Building envelope waterproofing
  • Direct to metal corrosion resistance
  • Concrete waterproofing and ice resistance
  • Automotive aftermarket rust resistance

 

Formulation

Starting Formulation -450 g/L VOC at 42% solids
Component
PBW % Weight Example
Kraton Functionalized Polymer
120
20.5%
Kraton™ FG1901*
Hydrocarbon Resin (midblock)
120
20.5%
EastotacTM H100*
Antioxidant
2.5
0.4%
Irganox™ 1010*
UV Stabilizer
2
0.3%
Tinuvin™ 328/770*
Solvent
231
39.4%
Aromatic 100
Solvent (Exempt)
112
19.1%
PCBTF
*Kraton is a registered trademark of Kraton Corporation
Irganox, and Tinuvin are registered trademarks of BASF
Eastotac is a trademark of Eastman Chemical Company

 

Performance Test Data on FG1901 Formulation (2 mil coating on cold rolled steel panel)

Formulation exhibits superior salt spray resistance
  •  3500 hours salt spray under ASTM B117
  •  Loss of <0.1% of coating
  •  Scribed panel exhibits 4 grade (<1/4” creep) after 2000 hours

Achieves excellent adhesion to metal

  •  5B, or 0% loss in cross hatch testing under ASTM D 3359
  • >280 psi adhesion under ASTM D 4541 pull-off testing

Best in class toughness

  • 160 in-lbs direct and indirect impact under ASTM 2794
  • Passes QUV under ASTM D4587 for 1000 hours

 

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