Pyroplex Fire Rated Silicone Sealant is a one part, low modulus, neutral cure, halogen free product suitable for the sealing of construction joints, and around pipe penetrations which have been protected by the recommended Pyroplex Pipe Collar and Pipe Wrap. Also ideal for the weathersealing of curtain walling, building facades and expansion joints in fire rated walls.

Fire rated up to 240 minutes, Pyroplex Fire Rated Silicone Sealant offers excellent adhesion to many common building substrates and has outstanding resistance to ozone, UV and temperature extremes, tack-free within two hours.

Tested to BS EN 1366-4 and has a European Classification EI 240 in accordance with BS EN 13501-2.

Designed for use when:

• Sealing linear gap joint seals
• Sealing around metallic pipe penetrations
• Sealing around plastic pipe or cable penetrations which have been protected with the recommended Pyroplex intumescent product eg. CE Marked Pipe Collar, CE Marked Pipe Wrap

Quick Links - Click To Jump To Section:

• Features & Benefits
• Product Data
• Installation Instructions
• Quality Approval
• Technical Data
• Product Testing
• Joint Configuration
• Backing Material
• Structural Construction
• Consumption Guide

Features & Benefits

• Fire resistance up to 240 minutes
• Outstanding resistance to ozone, UV and temperature extremes
• Excellent adhesion to many common building substrates
• Fast cure [tack free in 2 hours]
• Joint movement accommodation 25%
• Pyroplex Fire Rated Silicone Sealant is fire rated – it is not intumescent

Product Data

Installation Instructions

1. For external applications ensure that all the surfaces are clean, dry, sound and frost free. Clean all joints thoroughly to ensure that the adhesion of the silicone to the substrate is not impaired.
2. It may be necessary to mask adjacent areas to prevent contamination and to ensure a neat sealant line. Masking tapes should be immediately removed after tooling and finishing.
3. Install backing materials as required and fill the cavity or void with silicone.
4. The joint should be tooled within 5 minutes of application to ensure good contact between the silicone and substrate. Tooling of the sealant also gives a smooth and professional finish.
5. Excess silicone should be cleaned off and non-porous surfaces cleaned whilst in an uncured state using a suitable solvent. Sealant adhering to porous surfaces should be left until it has cured, then remove by mechanical means.
6. Dispose of spent cartridges in accordance with local regulations.

Quality Approval

Pyroplex Limited have a Quality Management System that meets the requirements of ISO 9001 and an Environmental Management System that meets the requirements of ISO 14001, both are independently verified by BSI Quality Assurance under Certificate Numbers FM 10371 and EMS 637894. Copies of these certificates are available, contact our technical team for more information on 0113 2455450 (option 2) or send a message to [email protected].

Technical Data

Product Testing

A number of independent fire resistance tests have been carried out to confirm the suitability of the product and to demonstrate product compliance by utilising BS EN 1366-4 and other international standards. Pyroplex® Fire Rated Silicone Sealant has a European Classification EI240 in accordance with BS EN 13501-2.

Joint Configuration

The fire resistance performance of the material is based upon the joint configuration and the position and location of the seal, within the construction and backing materials used.

Backing Material

Structural Construction

Pyroplex Fire Rated Silicone Sealant can be used in walls and floors of a solid construction.

* Aerated concrete, lightweight ash blocks and/or solid brick construction.

Wall construction and fire resistance periods: Aerated concrete, lightweight ash blocks and/or solid brick construction.

Consumption Guide

Linear metres per 310ml cartridge, the figures quoted estimated and for guidance only.

Maintenance and Installation Records

Pyroplex Limited recommend that all firestopping materials are checked on a regular basis to ensure that the product remains integral.

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.