Description

3M Blockout Film 3635-20b White Matte

3M Blockout Film 3635-20b White Matte

This film blocks light transmission when applied to internally illuminated signs and enhances a neon-type effect when used on the second surface of clear acrylic. It is black on the face side, white on the back side. Contact 3M Customer Service for ordering information.

http://multimedia.3m.com/mws/media/9495O/3635-day-night-light-control-blockout-diffusing-30-60-ec.pdf

Product Description
This bulletin covers two distinct categories of light management films: blockout and day/night films.
Product Features
• Control light transmission or achieve special effects for backlit signs
• 2 and 4-mil vinyl film
• Pressure-sensitive adhesive
• Adheres to rigid or flexible substrates
• Expected Performance Life of 7 years (unwarranted period for unprinted film with no graphic protection, applied to a flat, vertical, outdoor
surface)
Also see these other 3M light management films:
• 3M™ Envision™ Diffuser Films 3735-50 and 3735-60
• 3M™ Diffuser Films 3635-30 and 3635-70
• 3M™ Light Enhancement Film 3635-100
• 3M™ Dual-Color Film 3635-200
Recommended Types of Graphics and End Uses
Always refer to the base film or flexible substrate’s Product Bulletin and 3M Instruction Bulletin 4.26 for additional construction or product usage
details. In general, the warranty for a first surface application on flexible substrates is the same as the translucent film.
Certificate of 3M™ MCS™ Warranty
Graphic manufacturers who produce digitally printed graphics made with all 3M Graphics Products, including 3M Ink purchased through a
qualified 3M Distributor or 3M Printing Partner, may register to be recognized with a Certificate of 3M™ MCS™ Warranty. Only graphic
manufacturers having a current Certificate of 3M™ MCS™ Warranty are eligible to extend this warranty to their customers.
NOTE: For non-digitally printed Finished Graphics, check your eligibility for the 3M™ MCS™ Warranty by viewing the 3M Graphics Warranty
Period Selector at www.3Mgraphics.com/warranties.
Product Recommended Uses Limitations of End Uses
Blockout Film
3635-20b and 3635-22b
• Internally-illuminated signs
• Blocks out light
• First and second surface applications
• May be printed with 3M™ Screen Printing Ink
Series 1900
• Second surface applications with 3M™
Envision™ Flexible Substrate FS-1 or 3M™
Panagraphics™ III Wide Width Flexible
Substrate
• Not recommended for thermoforming
applications
Day/Night Film
3635-91 and 3635-0171
• Internally-illuminated signs
• Produce the appearance of dark graphics
during the day
• Produce the appearance of white or colored
graphics at night
• First and second surface applications
• Cannot be printed
Product Bulletin 3635
Release K, December 2015 (Replaces J, Oct ‘15)
Quick Links
3M Graphics Warranties
Warranty Period Tables for 3635
Technical Information Selector
Safety Data Sheets (SDS)
Videos
Some of these links lead to web-based resources
that are not product-specific.
3M Graphics Warranties
2 Product Bulletin 3635 Revision K
3M™ Blockout Films 3635-20b, 3635-22b
3M™ Day/Night Films 3635-91, 3635-0171
Characteristics
These are typical values for unprocessed product. Processing may change the values.
Physical Characteristics
Application Characteristics
Warranty Information
i IMPORTANT NOTE
Warranty information including limitations and exceptions and warranty periods for this product can be found at 3Mgraphics.com/
warranties.
Characteristic
Value
Blockout Film
3635-20b and 3635-22b
Day/Night Film
3635-91 and 3635-0171
Film Description
3635-20b: Uniformly white on face side with a
matte surface
3635-22b: Uniformly black on face side with a
matte surface
3635-91: Greenish gray color
3635-0171: Charcoal gray color
Light Transmission Less than 1%, typical 3635-91: 47%, typical
3635-0171: 8.3%, typical
Thickness Without adhesive: 4 mil (0.10 mm)
With adhesive: 5 mil (0.13 mm)
Without adhesive: 2 mil (0.05 mm)
With adhesive: 3– 4 mil (0.08 – 0.10 mm)
Adhesive Type Pressure sensitive
Adhesive Color Clear
Liner White Kraft paper
Tensile Strength 5 pounds/inch at 73 F (0.9 kg/cm at 23 C)
Chemical
Resistance
• Resists mild alkalis, mild acids, and salt
• Excellent resistance to water (does not include immersion)
Characteristic Value
Finished Graphic Application
Recommendation
Surface type: Flat
Substrate type: 3M™ Envision™ Flexible Substrate FS-1,
3M™ Panagraphics™ III Flexible Substrate, acrylic, polycarbonate,
PETG (glycol-modified polyethylened terephthalate)
Application method: Wet or dry
Application temperature: 60 F (16 C) minimum air, substrate
Adhesion, Typical
24 hours after
application
Acrylic panels; first surface of sign faceing FS-1 or Panagraphics
substrate: 3 pounds/inch (0.5 kg/cm)
Temperature Range After
Application
-20 to +175 F (-29 to +80 C) (not for extended periods of
time at the extremes)
Applied Shrinkage 0.015 inch (0.4 mm)
Graphic Removal Permanent

3M™ Blockout Film 3635-20b White Matte, Miscellaneous Sizes
3M ID 75346823273

3M™ Blockout Film 3635-20b White Matte, 48 in x 50 yd
3M ID 75346821681 UPC# 00051128421963