Chemical Milling and Harsh-Environment Processing Maskant

UV/Visible light-curable SpeedMask® 730-BT maskant provides excellent surface protection during chemical milling/etching, plating, anodizing, shot peening, sand blasting, and grit-blasting operations. The material aids in the manufacture, overhaul, repair, rework, and surface finishing of metal components used in aerospace engine (turbines, vanes, blades), orthopedic implant, and general masking applications. The material is impervious to most acid and alkali solutions.

SpeedMask® 730-BT maskant is a solvent-free fast-curing organic resin ideal for either spray or dip masking of metal parts. When used as a temporary protective coating, the product replaces environmentally hazardous and time-consuming solvent- or water-based maskants. This masking resin requires no mixing prior to use and its highly visible blue color makes it easy to see when dispensed onto substrates, enabling accurate material placement on components. When cured, it provides surface protection from chemical processing of nickel alloys, steel, titanium, stainless steel, aluminum, and glass. The material is easily removed by peeling and is trimmable after cure.

Dymax materials are solvent free and cure upon exposure to light. Their ability to cure in seconds results in 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. SpeedMask® 730-BT maskant is in full compliance with the RoHS2 Directives 2015/863/EU.


Viscosity (nominal):  20,000 cP

Shore Hardness:  D35

Modulus of Elasticity MPa [psi]:  3.4 [500]

Cure Time*:  4 Seconds

*Cure time based upon Dymax 5000-EC Light Curing Flood Lamp System (200 mW/cm2)


  • Acid stripping
  • Plating
  • Harsh chemical processing
  • Recommended surfaces include nickel alloys and high-temperature alloys


  • UV/Visible light curing
  • Resists acids and alkalis
  • High adhesion
  • Hard and durable
  • Spray or dip

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