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SpeedMask®

734-BT

Chemical Milling and Harsh-Environment Processing Maskant


This product is only available in the United States, Canada, Europe & South Korea. For use in Asia, country compliance should be reviewed with the regional Dymax team. 

SpeedMask® 734-BT UV/Visible light-curable maskant provides good surface protection during chemical milling/etching, plating, and anodizing, as well as aggressive grit-blasting operations. The products aid in the manufacturing, overhaul, repair, and rework of turbine engine blades, vanes, and other turbine components. 734-BT is impervious to most acid and alkali solutions. When cured, it provides surface protection from chemical processing of nickel alloys, steel, titanium, stainless steel, aluminum, and glass.

This fast-curing, solvent-free organic masking resin is designed for either spray or dip masking of components. Used as a temporary protective coating, the material is a replacement for environmentally hazardous and time-consuming solvent- or water-based maskants. 734-BT requires no mixing prior to use.

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. Dymax lamps offer the optimum balance of UV and visible light for the fastest, deepest cures.

This material is in full compliance with the RoHS2 Directives 2015/863/EU.

Features

  • Fast cure with UV/Visible light
  • High visibility blue color
  • Excellent surface protection
  • Acid resistant (nitric, sulfuric, hydrochloric)
  • Spray or dip application
  • Easy peel off removal
  • Trimmable after cure
  • Moderate adhesion
  • Compliant with ISO 10993
  • Compliant with RoHS2 directives 2015/863/EU
  • Rolls Royce approval as metal spray maskant with the designation of OMat 2/241

Typical Properties

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Property Values
Viscosity (nominal) 24,000 cP
Cured durometer hardness D25
Cured modulus of elasticity 5.5 [800] MPa [psi]
Cure time* 5 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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