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Ultra Light-Weld 9-318-F

  • Product code: 9-318-F
  • Manufacturer: Dymax
  • Package size: 10 ml syringe
  • Shelf Life:

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Ultra Light-Weld 9-318-F cures in seconds when exposed to UV/Visible light. Ultra Light-Weld 9-318-F peelable maskant material is designed for rapid masking of electronic components and assemblies to protect from reflow or wave soldering operations, and shield keep-out areas during conformal coating application. This maskant is highly thixtropic for manual or automated dispensing on boards or components that may be difficult to mask with other methods. It is solvent free and silicone free.

Ultra Light-Weld 9-318-F peelable mask fluoresces blue for black light inspection. Cured masks are easily removable, eliminating the concern of ionic contamination or silicone left behind by other masking methods.

FEATURES:

  • UV/Visible Light cure
  • Very low VOCs
  • Highly Thixotrophic for manual or automated dispensing onto difficult components
  • Solvent free
  • Silicone free
  • Blue fluorescing for Black light inspection
  • Medium adhesion for peeling

APPLICATIONS:

  • Masking for conformal coating applications
  • Masking for wave solder or reflow processes

 

 

Uncured properties  
Property Value Test Method
Solvent content No nonreactive solvents N/A
Chemical class Acrylated urethane N/A
Appearance Translucent Yellow N/A
Soluble in Organic solvents N/A
Density, g/ml 1.11 g/ml ASTM D1875
Viscosity, cP (20 rpm) 50000 DSTM D2556

 

Cured mechanical properties  
Property Value Test Method
Durometer hardness A55 ASTM D2240
Tensile at break, MP a [psi] 3.0 [440] ASTM D638
Elongation at breat, % 130 ASTM D638
Modulus of Elasticity, MPa [psi]  2.0 [310] ASTM D638

 

Other cured properties  
Property Value Test method
Boiling water absorption, % (2 hr) 8.5 ASTM D570
Water Absorption, % (25° C, 24 hr) 18.0 ASTM D570
Linear Shrinkage, % 1.9 ASTM D2566

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