Pyrolastic® Silicone is a fire-resistant silicone sealant from FSi.
It is used to reinstate the fire resistance of wall and floor construction in linear joints and where apertures are penetrated by services. Once cured, it is a permanently flexible silicone rubber.
Application/Use
- To reinstate fire resistance through rigid floors
- To reinstate fire resistance through rigid and flexible walls
- Linear construction joints
- Service penetrations
Testing
- CE marking
- UL EU
- UAE CoC
- Emicode
Installation
The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose particles.
The product does not require a primer on most common surfaces, although adhesion tests are recommended prior to full scale application.
Adequate space and accessibility should be provided for applying and tooling the sealant.
A suitable backing material to control the sealant depth may be required, please refer to UL-EU-01051-CPR.
The joint depth should be such as to provide a minimum sealant depth required as per UL-EU-01051-CPR.
The sealant should be gunned firmly into the joint ensuring that it is in full contact with the sides of the joint. Failure to carry this out may result in poor adhesion of the sealant and ultimate failure of the join.
Tooling of the sealant may be necessary to achieve an acceptable appearance. This is accomplished by drawing a flat tool over the surface of the sealant to produce a smooth neat finish.
Tooling also compresses the sealant into the joint enhancing the adhesion to the joint sides.
Clean all tools and application equipment with water immediately after use.
Competence records should be kept for all individuals installing this product. Installations should be suitably recorded and logged.
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