Introducing LSLT Neoprene Sponge

As a market leader in supplying sponge, foam, and rubber materials for a wide range of industrial sectors, CB Frost are committed to staying ahead of the curve when it comes to innovation. We have developed an extensive range of fire safe materials, the latest of which is our LSLT neoprene sponge.

LSLT Neoprene Sponge

LSLT Neoprene Sponge converted into sponge strips

Why LSLT Neoprene Sponge?

When we describe a sponge as LSLT, this means that it is a low smoke low toxicity material. And when exposed to fire, LSLT materials do not generate high levels of smoke or toxic fumes. At the early stages of a fire, smoke and toxic fumes are often more dangerous than the fire itself. For example, for occupants of a vehicle such as a train, a buildup of toxic smoke in an enclosed space could make breathing very difficult, so exiting the vehicle would be increasingly hard, even if a fire is not spreading quickly. 

LSLT materials can be just as useful in public buildings (material choice would be dependent on the fire specification and where used). For example, should an airport, train station, public office, or hospital need to be evacuated in the case of a fire, a buildup of smoke could be a considerable problem for people who are not familiar with the layout of a building. 

To improve the safety of insulation materials, we supply a range of LSLT materials that do not emit toxic smoke and fumes. Our LSLT Neoprene sponge material fits into this category of fire safe materials. It is a pure Neoprene sponge, EN45545-2 compliant (the European specification for fire, smoke and toxicity), and widely used in a range of applications, including:

  • Enclosure seals
  • Anti-rattle seals
  • Gap fillers
  • HVAC sealing 
  • Access panel seals

At CB Frost, we can supply LSLT Neoprene sponge on rolls of 1 metre wide and in a range of thicknesses, or converted in house to produce:

  • Gaskets
  • Strip/tape
  • Sheets

The table below shows LSLT Neoprene Sponge’s EN45545 compliance:

Smoke, Flame and Toxicity – EN45545-2

LSLT Neoprene Sponge

R22 – Interior Seals

HL1, HL2

R23 – Exterior Seals

HL1, HL2

For further information on LSLT Neoprene Sponge, you can download our data sheet, or for assistance in finding the right LSLT material to suit your requirements, simply call us on +44 (0) 121 773 8494. Our experienced team will be glad to assist you.


For more information or advice

call us today on +44 (0) 121 773 8494

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