25 per box - 310ml tubes

STS ST88 is a one part fire stopping gun grade joint sealant.

It is emulsion acrylic based and gives a firm yet flexible seal

to joints in a variety of fire rated structures. It will not support

combustion and when subjected to heat, chars and intumesces

preventing the spread of smoke and fire through the joint.

In ensuring that flame and intumescent properties are maintained,

most currently available sealants sacrifice sealing performance.

ST88 has been formulated to give improved sealing and application

performance coupled with excellent fire-stopping properties.

It is also designed for sealing joints, voids and irregular holes in fire

walls, floors, partitions and other structures and for maintaining

their integrity when sealing around pipes and cables that penetrate

them. It is also ideally suited for internal perimeter pointing of fire-rated door and window frames.

ST88 is a 4 hour rated intumescent sealant formulated with fillers

that provide noise reduction. The sealant has undergone test to

BS476: Part 20:1987, BS476: Part 22:1987 and BSEN 1366-3 with

additional guidelines from BS EN 1366-4 for fire protection joints

and testing in accordance with BS EN ISO 140-3:1995 for acoustic

Properties

• Fire rated in both horizontal & vertical joints

• No priming required for most construction substrates

• Joint movement capability of 12.5%

• For use in joints up to 50 mm wide

• Excellent slump resistance

• 12 months shelf life

• Fast cure - tack free within an hour

• Easy to apply and tool off

• Halogen free

• Paintable

• Excellent adhesion to most common building substrates

• Reduces sound transmission in joints