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SpeedMask®

740-BT

Low Adhesion Blue UV-Curable Maskant


UV/Visible light-curable SpeedMask® 740-BT maskant provides surface protection during painting, low-pressure grit blasting, shot peening, and general handling applications. The material supports the manufacturing of aerospace engine and structural components, as well as orthopedic joint replacement implants.

This maskant is bright blue in color, making it highly visible to automated optical inspection systems. The product cures quickly and is easily removed by peeling, leaving a residue-free surface on non-porous surfaces. When cured, it provides protection for titanium, stainless steel, nickel alloys, aluminum, glass, ABS, and PC surfaces. In addition, the maskant is resistant to MEK-based paint processes.

Dymax materials contain no nonreactive solvents and cure upon exposure to light. Their ability to cure in seconds enables faster processing, greater output, and lower processing costs. When cured with Dymax UV light curing spot lamps, focused beam lamps, flood lamps, or conveyor systems they deliver optimum speed and performance for maximum efficiency. Dymax lamps offer the optimum balance of UV and visible light for the fastest, deepest cures.

SpeedMask® 740-BT maskant is in full compliance with the RoHS2 Directives 2015/863/EU.

Features

  • Cures with UV/Visible light
  • Fast on-demand curing
  • Highly visible blue appearance
  • Visible for automated optical inspection systems
  • Flexible after exposure to heat (i.e. 1 hour @ 200°C)
  • Easy peel off removal
  • Residue free upon removal
  • Resistant to MEK-based paint processes
  • Compliant with with RoHS directives 2015/863/EU

Typical Properties

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Property Values
Viscosity (nominal) 45,000 cP
Cured durometer hardness A65
Cured modulus of Elasticity 2.42 [350] Mpa [psi]
Cure time* 35 seconds
* Cure time based upon Dymax 5000-EC Light Curing Flood Lamp System (200 mW/cm2)

Looking for additional technical specifications. Download a Product Datasheet in our Resource Library or talk with our technical experts.

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