Photoluminescent Exit Sign Services

UL 924 Photoluminescent Exit Signs, glow in the dark exit sign, UL 924 Exit signs
Visual Appearance
Glossy appearance, light to medium yellow color against medium to dark green color.
Application Surface
Any mountable surface in any gradient
Application Temperature Range
Any range, no temperature restrictions.

1/32 inch
Service Temperature
-30°F to 220°F    -34°C to 94°C

GASAverage PPM
Critical Concentration PPM

Photoluminescent Exit Sign Technical Specifications

Data and Specifications photoluminescent exit signs

NightBright USA
4711 Highway 36 S. Suite 44 Rosenberg, TX 77471 US
Phone: 713-596- 8085 Website:

Copyright © 2019 NightBright USA. All rights reserved. 

Fulfill the following codes:


Conform to the following standards:  

ETL listed to UL-924. Standard for Safety of Emergency Lighting and Power Equipment.

ETL listed to UL-1994. Standard for Photoluminescent Path Markers and Signs.

ETL listed to UL-746C. (Impact Test) For Floor Proximity Installation.

ASTM E 2072 Standard for Photoluminescent Brightness.

ASTM D635, Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position. Is not flammable and does not issue toxic gases when exposed to heat, fire or flame.

ASTM D 4828-94 (2003).  Standard Test Methods for Practical Washability of Organic Coatings.

ASTM D 3648-2004 Standard Practices for the Measurement of Radioactivity.

ISO 7010 E001, E002, E003, E004 Graphical symbols -- Safety colors and safety signs -- Registered safety signs.

ISO 17398:2004 Classification, performance and durability of safety signs.

ANSI Z535.1 American National Standard. For Safety Colors.

Bombardier BSS 7239 (Toxicity)

RE 6-1 and RS 6-1A Standards. Meets and exceeds New York City Building Code Reference.

MEA 462-05-M, Code Section 27-383(b). Have been approved by the City of New York Department of Buildings. 


Product Data

Physical Properties:

NFPA 1                        Fire Code 2012  14.14.4 &

NFPA 101                    Life Safety Code 2018
IBC                              (International Building Code 2018) 1013
OSHA 1910                 (E-1910.35 & E 1910.37)

Chemical Characteristics:

Resists mild corrosives, mild acids, mild alkalis, salt, solvents and alcohol.

Washability meets or exceeds ASTM D 4828-1994 (2003).  Signage tested after 100 sponge cycles using a simple green all purpose cleaner over Paper Mate Flair felt tip pen (water based); Leneta Staining Medium Item No. ST – 1 (mineral oil borne soilant); Crayola Crayon; and Wet ‘n’ Wild 514 Cherry Frost Lipstick. There was no change in gloss, color or luminescence and the signage demonstrated no erosion. Further, signage is solvent and alcohol resistant. 

Toxicity Test Results: 

Photoluminescent Exit Sign Tecnical Specs

Toxicity conforms to Bombardier BSS 7239 

Radioactivity per ASTM D 3648-2004.  The test demonstrated there were no integral alpha, beta and / or gamma radiation above background noise radiation levels and the test specimens were determined to be non-radioactive as tested to the referenced standard. 

Application and Uses: 
Primarily intended for interior luminous safety signage in buildings.

Limitations of End Uses:
NightBright USA photoluminescent signs and path markers require a minimum of 1 ft-c for 60 minutes to charge, and are not intended or warranted for installation in areas that have no lights source what so ever.

NightBright USA photoluminescent EXIT signs require a minimum of 5 ft-c for 60 minutes to charge, and are not intended or warranted for installation in areas that have no lights source what so ever.
NightBright USA assumes no responsibility for any injury, loss or damage arising out of the use of a product that is not of our manufacture. Where reference is made in literature to a commercially available product, made by another manufacturer, it shall be the user’s responsibility to ascertain the precautionary measures for its use outlined by the manufacturer.  


All statements, technical information and recommendations contained herein are based upon tests performed for fees paid by us to professional testing organizations and agencies and we believe these tests to be highly reliable, but the accuracy or completeness thereof is not guaranteed, and the following is made in lieu of all warranties, or conditions express or implied.  Sellers and manufacturers only obligation shall be to replace such quantity of the product proved to be defective.  Neither seller nor manufacturer shall be liable for any injury, loss or damage, direct, special or consequential, arising out of the use of or the inability to use the product. Statements or recommendations not contained herein shall have no force or effect unless in an agreement signed by officers of seller and manufacturer.