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When a Sign is More Than Just a Sign

( 07/23/2019 ) Written by: Carolee Nail

The Benefits of UL Testing and Certification

The neon tubing, LEDs and wiring that make modern signage effective also mean the signs are considered electrical equipment. It’s no surprise that signs’ electrical components are governed by codes and standards. It’s also recommended that signs meet the criteria of “UL 48: Standard for Electric Signs." UL is a global independent safety science company that has long been trusted to perform product safety testing and certification.

What’s a bit more surprising is that plastics, metals and other structural materials making up sign enclosures are also recommended to meet UL requirements. Because sign enclosures contain parts of the sign that pose a risk of shock, as well as retard the spread of fire should electrical components ignite, this is a logical extension of safety testing and certification. As structural components, adhesives have an important role to play in maintaining the integrity of the sign enclosure. They must be able to absorb force as well as remain sound in a range of environmental conditions, as outlined in “UL 746C: Standard for Polymeric Materials - Use in Electrical Equipment Evaluations.”

LORD adhesives are tested according to these standards and are made available as UL-listed components. They are an important part of the safety and certification mechanism for UL-recognized devices. These adhesives have been shown to effectively bond a range of substrates, including:

  • Aluminum to aluminum
  • Stainless steel to stainless steel
  • Cold-rolled steel to cold-rolled steel
  • Plastic to plastic
  • Combinations of these substrates

Properties tested include:

  • Effect of temperature
  • Effect of humidity
  • Effect of cold
  • Effect of cyclic conditions
  • Other test considerations

Our UL-listed adhesives are proven to resist degradation when exposed to various environmental conditions and will provide adequate performance when used within the limitations of the test program parameters.

UL certification is a symbol of trust. When constructing electrically illuminated signage, keep safety and long-term performance in mind and use a UL-listed adhesive to quickly and economically achieve UL recognition for your signage.

If you have any questions about finding the right UL adhesive for your application, contact me or learn more about all our LORD sign adhesives.

Carolee Nail

Carolee Nail is a Technical Service Representative at LORD, assisting customers with highly reliable adhesive solutions for assembly, manufacturing and repair with a focus on the sign industry. Our technical support provides product recommendations and application support via chat, web and phone.

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