Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings
Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings
 
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Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings
Liquid Mask, Peelable Coatings, Strippable Coatings Temporary Protective Coatings
 
  You are Here: Index > UV_MetalMask > UV_PlasticMask_721  
 
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Temporary Peelable Masking Resin for Metal Finishing

Applications Recommended Surfaces
 Performance Highlights
Acid stripping Steel UV Light Curing
Plating Stainless Steel Easy manual peel off
Grit Blasting Aluminum Excellent abrasion resistance   
Part Handling Nickel Alloys Outstanding extensibility and flexibility


 
Temporary Protective Coatings, Strippable Coatings, Peelable coatings,Liquid Masking Compounds Introduction:
 
 

UV_MetalMask_721 is a UV curable, translucent, low adhesion, tough film with easy manual peel off metal surfaces.

UV_MetalMask is an economical one component, UV cure masking resin that simplifies your process by offering fast, reliable protection for your parts. No measuring or special mixing required. It eliminates the need for fixtures, tapes, lacquers and wax in your metal finishing process and with the proper UV cure (irradiance), 721 will not leave a residue on the surface.

 
 

Uncured Typical Resin Properties

Property Value Test Method
Solvent Content Zero nonreactive solvents N/A
Chemical Class Aliphatic urethane diacrylate N/A
Appearance Translucent Gel N/A
Density, g/cm3 1.13 ASTM D1875
Viscosity, cps @ 20rpm 80,000 nominal ASTM 2556
Soluble in Organic Solvents N/A

 
 

Typical cured properties

Property Value
Tensile strength, psi 1170
Elongation at break, % 320
Young’s modulus, psi 1280


 
  UV cured 6 mil thick film  
 

UV Cure Guidelines

  
 

Light source: 400-600 W/in. mercury medium pressure arc or microwave lamp
Distance: focused light source with reflector for reduced part temperature
Total Energy Density (cm2): .9 W/cm2    (.68 J/cm2) * UVA
Belt speed: 20 ft./min.

  
 

UV cure rate is dependent on many variables, such as; coating thickness, lamp irradiance, distance from the light source and line speed. It is recommended that a radiometer be used to monitor irradiance.

  
  Measured with an EIT UV Power Puck radiometer

Depth of Cure

UV_MetalMask 721 has superior depth of cure for a UV cure coating. Most UV_Mask formulations typically cure to a depth of  .6 to 1.3 cm ( ¼” to ½”).
  
  Storage and Handling

Surfaces to be masked should be clean and free of contaminants.

Avoid exposing the product to high temperatures and minimize exposure to artificial or natural light prior to curing.

Cool the cured parts to room temperature before testing.		  
 
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