Series 5570

Cast Blockout Film

Applications & Features

  • Excellent initial tack and ultimate adhesion
  • Ideal for internally illuminated signage, displays and where light transmission is not desired
  • Standard product: white (120), black (122)
  • Custom colors: available upon request
  • Superior release and weedability
  • Excellent color consistency
  • 5 year outdoor durability

Performance & Physical Data

Property Test Methods Typical Value
Surface Finish Gloss Meter 60° Reflection 25 to 40 units
Thickness Micrometer, Federal Bench Type 100 microns
Tensile Strength Tensile Tester 51mm jaw seperation: crosshead speed of 5.1 mm/s 2.9 kg/cm width
Elongation Instron Tensile Tester as above ≥ 200 %
Shelf Life Free from excessive moisture, temperature, direct sunlight 2 years from factory shipment
Application Temperature Range On clean substrate 16°C to 32°C optimum
Service Temperature Range Film applied to etched aluminum panels 24 hours prior to testing -40°C to 93°C
Humidity Resistance Film applied to etched aluminum panels 24 hours prior to testing; 100% relative humidity at 38°C for 500 hours No appreciable effect
Gasoline Resistance Film applied to etched aluminum panels 24 hours prior to testing; immersed 15 minutes at 21°C: stabilized 24 hours before inspection No appreciable effect
Dimensional Stability 70°C, 48 hours 0.4 mm
Peel Adhesion PSTC-101, 15 min, RT 21°C ≥ 0.54 kg/cm
Liner Release TLMI 762 cm/min 30 g/cm


This 100 microns cast blockout film is coated with acrylic pressure-sensitive adhesive which facilitates applications over a wide range of temperatures. Initial adhesion, ultimate adhesion and shrinkage properties have been balanced to create a product that is easy to apply, and performs to user expectations. Optimum application temperatures are between 15°C and 32°C, but may be extended by special preparation i.e., heat gun at below 4°C and “wet” application at above 32°C.


Five years, unprinted. Durability will be affected by any printing or clear coating, as well as actual exposure conditions and sign face maintenance.


For best results on large, continuous-color signs, be sure to utilize material from identical rolls on the same sign face to assure perfect color reflection and transmission across the sign face.

When rejoining sheets or characters, avoid overlapping film if possible. A preferable splice can be achieved utilizing a 45°-mitre cut after determining splice point by overlapping. Strip waste ends from top and bottom, then butt-angle cut together.

The angled butt splice gives best protection from uneven splices, preventing light leaks while avoiding overlaps that will create dark bands along splice edges.

When installing large graphics on glass, Plexiglas® or acrylic sign faces, it is useful to follow “wet” application techniques. This will reduce trapped air problems and aid in repositionability for proper registration. Care should be taken to thoroughly remove entrapped water through high squeegee pressure.


Information is based on tests believed to be reliable, but neither accuracy nor completeness is guaranteed. Seller’s and manufacturer’s only obligation shall be to replace such quantity of the film proven to be defective. Neither the seller nor the manufacturer shall be liable for any injury, loss or damage, direct or indirect, arising from the use or inability to use this product.

Terms & Conditions

The following is made in lieu of all warranties expressed or implied: 
All statements, technical information and recommendations published by Arlon relating to Arlon products are based on tests believed to be reliable and within the accuracy of the equipment used to obtain the specific values. Their accuracy or completeness is not guaranteed and Arlon makes no warranty with regard thereto. Seller’s and manufacturer’s only responsibility shall be to replace any quantity of the product proved defective. Seller and manufacturer shall not be liable for injury, loss or damage, direct or consequential, arising out of use or the inability to use the product. Nor shall seller or manufacturer be liable for any costs or expenses incurred in the processing or printing on the product. Before using, user shall determine the suitability of the product for its intended use. User assumes all risk and liability of every nature in connection therewith. No statements or recommendations other than those contained in the technical information published by Arlon shall have force or effect unless contained in an agreement manually signed by the officers of seller and manufacturer.