• Fire-resistant silicone sealant for engineered building joints
• Prevents the spread of flame, smoke, toxic gases and water
• Halogen-free, to reduce toxic fumes and corrosion in a fire
• Neutral curing, so it is safe on sensitive substrates
• Bonds concrete, cement, metals, timber, glass, ceramics and many plastics
• White, 310 ml, single or trade box of 12

First, make sure the joint faces are clean, dry and sound. LN11 is for engineered fire-rated joints, so follow the specified joint design.

Next, pack deep joints with the correct backing material, then gun the sealant into the joint to the required depth.

Then tool the bead to a firm, continuous seal around conduits, pipes, panels, door frames, partitions and fire-glazing beading.

Finally, because it is neutral cure and halogen-free, it maintains the integrity of fire walls where breached by services. For intumescent acoustic sealing, see our FS4 Fireshield.

• Product code: BDLN11WH
• Type: fire-resistant, halogen-free neutral cure silicone sealant
• Protects against: flame, smoke, toxic gases and water
• Bonds: concrete, cement, metals, timber, glass, ceramics, many plastics
• Applications: fire walls breached by services, panels, door frames, partitions, fire-glazing beading
• Colour: white
• Cartridge: 310 ml
• Pack sizes: single cartridge or trade box of 12

What does a fire-resistant sealant do?

It seals engineered joints so that, in a fire, it helps hold back flame, smoke, toxic gases and water for the rated period, maintaining the integrity of fire walls and compartment lines.

What does halogen-free mean and why does it matter?

It means the sealant does not release halogen gases when exposed to fire, which reduces toxic fumes and corrosion. That is safer for occupants and for nearby metalwork and cabling.

Where is it used?

Around service penetrations (conduits and pipes) through fire walls, and sealing panels, door frames, partitions and fire-glazing beading.

Is it the same as an intumescent sealant?

No. LN11 is a fire-resistant silicone. Our FS4 Fireshield is an intumescent acoustic sealant that expands in heat. Specify to the fire-stopping detail for the joint.

Will it stick without a primer?

It is neutral cure with good adhesion to concrete, cement, metals, timber, glass, ceramics and many plastics. Surfaces must be clean, dry and sound; prime where the specification requires.

Single or box of 12?

Buy one cartridge for a small job, or the trade box of 12 for a fire-stopping contract.