UL94 VO Rated Heat-Resistant Adhesives
Shop Heat-Resistant & Flame-Resistant Adhesives
Adhesives can be developed to match a sliding scale of fire resistance known as a UL94 rating. UL94 VO rated adhesives can lead to decreased safety hazards, increased equipment performance, and lowered replacement costs. These heat and fire-resistant adhesives are used for electronics, construction, public transportation, aircraft applications, and more.
Finding a Heat-Resistant Adhesive
When you are looking for a fire-resistant or heat-resistant hot melt adhesive, look for a UL 94 VO flame rating. UL stands for Underwriters Laboratories, an independent organization in the United States that controls and certifies product safety. After identifying a UL94 VO fire-resistant adhesive, you can then explore other properties such as strength, cure speed, flexibility, and viscosity.
If you need help finding a heat-resistant or fireproof glue, you can contact one of our adhesive experts.
Top Recommendations
Best for High-Volume Applications: Medium Open Time UL 94 Rated Bulk Hot Melt for Product Assembly
Use bulk hot melt for mid-volume to high-volume applications. This Infinity Bond high-performance bulk hot melt is excellent for product assembly applications and carries a UL 94 V2 flame rating. It is also FDA approved for non-direct food contact.
Best for Low-Volume Applications: 3M Scotch Weld 3748 VO Hot melt - Q, TC and PG
For low-volume applications, these glue sticks are often a good choice. They are a unique hot melt often used in electronic assembly because they provide excellent thermal shock resistance and are non-corrosive to copper. They also provides an excellent bond to polyolefins and meet UL1410 requirements.
Ask a question about UL94 VO Rated Heat-Resistant Adhesives
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Common Questions About UL94 VO Rated Heat-Resistant Adhesives
Yes. There is a distinct difference.
Fire-resistant adhesives - These adhesives are often inorganic adhesive cements and sealants that do not burn and are able to withstand extreme temperatures. They are often used for applications in blast furnaces, ovens, and similar devices. They don't do anything to stop an assembly burning, but they do a great job of holding all the burning bits together.
Fire-retardant adhesives - These products help to extinguish the flames and slow the spread of fire.
There are several applications for fire-resistant adhesives including in electronics, construction, public transportation, and aircraft manufacturing. Whether or not you need a fire-resistant glue will depend on your specific application. Contact us if you need helping choosing the right product.
UL is the abbreviation for the Underwriters Laboratories. This independent organization in the United States is used to control and certificate product safety. UL provides safety related certification, validation, inspection and testing services to a range of clients including manufacturers, retailers, policy makers and regulators.
The UL94 rating scale is used to measure the flammability of materials based on how they burn in laboratory conditions.
- HB: Slow burning on a horizontal speciment; burning rate < 76 mm/min for thickness < 3 mm or burning stops before 100 mm.
- V-2: Burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are no inflamed.
- V-1: Burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
- V-0: Burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
- 5VB: Burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may develop a hole.
- 5VA: Burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may not develop a hole.
