3M™ Specular Film Protected - D50F
Technical Data Sheet
Release A, January 2014
Product Characteristics
Typical values for SFP-D50F shown below are based on test data deemed reliable but not warranted, except for those values identified in the Warranted
Characteristics section.
Physical
Characteristic
Value
Test
Total Thickness
(with Premask)
0.0045 in
(0.11 mm, 4.5 mils)
Micrometer
Film only
0.0033 in
(0.084 mm, 3.3 mils)
Micrometer
Premask
0.0012 in
(0.030 mm, 1.2 mils)
Micrometer
Construction
100% polymeric
N/A
Electrical
Product Description
3MTM Specular Film - Protected D50F(“SFP-D50F” or “Product”) consists of
the next generation of 3M’s high performance ultra-high reflectivity film,
which is greater than 98.5% reflective over the full visible spectrum and all
incident angles. SFP-D50F is specially formulated to provide significantly
increased lifetime when used in high intensity LED light engines over the standard SFP product. The Product also shows significant lifetime improvement
over the standard SFP product for UV irradiance stability.
A protective coating on the premask side provides abrasion resistance to
allow for mild cleaning.
Recommended End Uses
SFP-D50F is particularly well suited as a cavity reflector applique for planar
and conical surfaces. The Product is available as a sheet kit and as custom
cut shapes.
Key Attributes
• Superior specular reflectivity at >98.5%
• UV and high intensity LED irradiance stability
• Abrasion resistant coating
• Nonconductive 100% polymeric film
• Cut to custom shapes
Dielectric Strength
12.0 ± 1.0
(kV)
ASTM D257/D149
≥ 98.5%
ASTM E1164/E308
CIE a*, b*
0 ± 2 unit
CIE u, v
≤ 0.001
ASTM E1164/E308
4000K LED or D65, 2°
Observer
Optical
Photopic Reflectivity
Reflected Color Shift
Operating Temperature Range
Up to 105°C.
Recommended Storage Conditions
Shrinkage At Operating Temperature
Store SFP-D50F in its original container, out of direct sunlight, in a clean, dry
area, at 40° to 100°F (4° to 38°C), for no more than one year.
Characteristic
Value
Test
105°C, 15 mins
≤ 0.5%
3M
Warranted Characteristics
Environmental Performance
Optical and physical properties stable under these test conditions:
Cycle
Environment/Duration
Cold Temperature
-40°C, 1000 hrs
Hot Temperature/Dry
100°C, 1000 hrs
Hot Temperature/Humid
65°C/95% RH, 1000 hrs
Thermal Shock
-40°C to 85°C, 100 cycles, 1 hour dwell
Total Reflectivity
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