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The Passive Fire Protection Handbook

The Passive Fire Protection Handbook

Product catalog summary

Chapter Overview: This chapter from 'The Passive Fire Protection Handbook' emphasizes the importance of sealing gaps in fire-resistant constructions to prevent fire spread through service penetrations in floors, slabs, or walls.

Specifications: The chapter outlines the necessity of testing services passing through fire-resistant elements according to standards like BS 476: Part 20: 1987, BS EN 1366-3: 2004, and BS EN 1366-4: 2006. It highlights the variability in fire behavior of different materials, particularly plastics, and the need for specific solutions based on the type of plastic, pipe diameter, orientation, wall thickness, and end conditions during testing.

Failure Criteria: Failure in penetration seals is measured by integrity and insulation. Integrity failure occurs when flames or hot gases pass through gaps, while insulation failure is noted when temperature rises exceed 180°C on unexposed surfaces. The chapter stresses keeping combustibles at least 100mm away from metal service penetrations.

Fire Collars: Fire collars are recommended for plastic pipe penetrations to maintain fire ratings of compartment walls or floors. The chapter advises using surface-mounted collars and ensuring they are installed per manufacturer instructions. Promat PROMASEAL® UniCollar® is mentioned as a suitable retrofit option.

Promat PROMASEAL® Intumescent Acrylic Sealant: This sealant is used for sealing small gaps, offering up to 240 minutes of fire resistance. It is suitable for joints up to 50mm wide and can be overpainted. The sealant is flexible, tack-free, and halogen-free, with good adhesion to most surfaces.

Promat PROMASEAL® Silicone Sealant: This silicone-based sealant is also used for sealing gaps, providing up to 240 minutes of fire resistance. It is suitable for joints up to 30mm wide and is flexible and tack-free. However, it cannot be overpainted and should not be used in food-grade applications.

Installation and Application: Both sealants require clean, dry, and grease-free surfaces for proper adhesion. The chapter provides guidelines for calculating the quantity of sealant needed and emphasizes the importance of confirming specifications with Promat Technical Services.

Overview: The document provides detailed technical information on Promat PROMASEAL® products, specifically focusing on silicone sealants and fire compounds used for passive fire protection. These products are designed to seal gaps and penetrations in walls and floors to prevent the spread of fire, smoke, and toxic gases.

Specifications:

Promat PROMASEAL® Silicone Sealant is packaged in 310ml cartridges. The number of cartridges required can be calculated using a specific formula based on joint dimensions.
The sealant is silicone-based, with an oxime cure system, and offers a joint movement capability of ±25%.
It is suitable for application temperatures ranging from +5 to +30°C and service temperatures from -30 to +150°C.
Fire rating up to 120 minutes according to BS 476: Part 20: 1987.

Procedures:

For effective adhesion, surfaces must be clean and primed. The sealant can be applied to various materials including masonry, concrete, and metal.
Installation involves ensuring the surfaces are free from dust and grease, and the sealant is applied to both sides of the gap if necessary.

Norms and Standards:

Fire performance is tested according to BS 476: Part 20: 1987, achieving up to 240 minutes of fire resistance.
Certifire Approval No CF 424 and CF 425 ensure compliance with fire safety standards.

Recommendations:

For high movement joints, Promat PROMASEAL® Expansion Joint Strip is recommended.
For installations with expected service movement, pointing around services with silicone sealant is advised.

Technical Data:

Fire Compound is mixed with water and can be used for sealing around service penetrations in walls and floors.
It provides a gas-tight seal and is compatible with all known building products.
Loadbearing systems can support temporary foot traffic up to 1.5kN/m².

Application Techniques:

For wall applications, a stiffer mix is recommended, while a pouring grade mix is suggested for other applications.
Temporary or permanent shuttering may be required for floor applications, with additional reinforcement for spans over 600mm.

Limitations:

Maximum opening sizes for various penetrations are specified, with limitations on the size of gaps around services.
Plastic pipes must be fitted with suitable fire protective collars or wraps.

Product Overview: Promat PROMASEAL® Fire Compound Extra Strength is a versatile fire protection product that provides excellent acoustic insulation and can be mixed with water to various consistencies. It is designed for use in loadbearing floor seals and structural seals around fire dampers, offering significant load support and structural integrity.

Specifications and Mixing Procedure: The compound is mixed with clean water in a plastic container, ensuring a smooth, lump-free mix. The recommended mix ratios are 2.5:1 for floor openings and 3.0:1 for wall openings. The wet mix remains usable for 45-60 minutes, and any spillage should be cleaned before setting.

Installation Guidelines: For floor openings, appropriate shuttering must be installed to support the wet mix until it sets. For complex penetrations, a thin initial seal is recommended before pouring the remaining depth in one operation. Building up the seal in layers can weaken the structure.

Health and Safety: The product contains gypsum plaster and natural aggregates. Protective clothing, gloves, dust masks, and safety glasses should be worn during mixing to prevent dust inhalation, eye damage, and skin irritation. Safety data sheets are available from Promat Technical Services.

Fire Performance and Applications: Promat PROMASEAL® Fire Barriers provide up to 240 minutes of fire resistance, tested according to BS 476: Part 20: 1987. They are used to prevent fire spread through openings in fire-resistant walls and floors. The barriers are lightweight, easily installed, and allow for additional services post-installation.

Installation and Technical Data: The barriers are installed within masonry, concrete, or stud partition walls, with a firm friction fit. The Promat PROMASEAL® Fire Barrier Coating is applied to contact areas and edges. Services should be supported within 500mm of the barrier. The product is not classified as dangerous, and disposal can be managed with general building waste.

Approval and Compliance: Certifire Approval No CF 426 confirms the product's compliance with fire safety standards. The installation details and technical data provide guidance on achieving the required fire resistance for various applications, including walls and floors.

Overview: This document provides detailed information on Promat PROMASEAL® fire protection products, specifically Fire Pillows, Pipewrap, and Expansion Joint Strips. These products are designed to maintain the fire resistance of walls and floors by sealing gaps and openings around services such as cables and pipes.

Promat PROMASEAL® Fire Pillows:

Specifications: Tested according to BS 476: Part 20: 1987, providing up to 120 minutes of fire protection.
Advantages: Simple installation, reusable, waterproof, maintenance-free, non-toxic, and resistant to vermin and rot.
Installation: Installed by laying in courses to fill gaps around penetrations, ensuring a good seal with smaller pillows where necessary. Overlap by at least 50mm is required.
Technical Data: Available in various sizes, with specific fire resistance ratings based on installation method and orientation.

Promat PROMASEAL® Pipewrap:

Specifications: Provides up to 240 minutes of fire resistance, tested according to BS 476: Part 20: 1987.
Advantages: Easy to install, lightweight, flexible, water-resistant, and suitable for various pipe sizes.
Installation: Wrapped around pipes and secured with adhesive tabs, then grouted into position using Promat PROMASEAL® Fire Compound.
Technical Data: Available in sizes to suit pipes up to 160mm in diameter, with specific fire resistance ratings based on pipe size and wall/floor thickness.

Promat PROMASEAL® Expansion Joint Strips:

Specifications: Fire resistant seals for movement joints, providing up to 240 minutes of fire resistance.
Advantages: Allows joint movement, simple dry fixing, water-resistant, and resistant to most chemicals.
Installation: Compressed and inserted into joint gaps, with specific strip sizes based on joint width and fire resistance requirements.

General Notes: Safety data sheets are available, and the products are not classified as dangerous substances. Proper disposal procedures should be followed.

Product Description: Promat PROMASEAL®-RSB is a fire protection system consisting of a perforated intumescent sheet bonded to a perforated galvanized steel sheet. It is designed to form a ventilated cavity barrier with 60 minutes of fire resistance.

Applications: Used to prevent fire passage in voids between rainscreen systems and building faces, while providing ventilation.

Fire Performance: Tested for 60 minutes of fire integrity according to BS 476: Part 20: 1987.

Installation: Installed between the overcladding layer and external masonry. Fixings must be non-combustible. Supporting angles are fixed to masonry with steel screws, and the PROMASEAL®-RSB is attached with rivets or screws.

Advantages: Fire tested, easy to install, lightweight, allows ventilation, water tolerant, economical, and available in various widths.

Availability: Standard length of 1000mm, with bespoke widths available upon request.

Product Description: Promat PROMASEAL® UniCollar® is a system for protecting plastic pipes passing through fire-rated walls and floors. It is supplied in a continuous strip and can be cut to length on-site.

Applications: Maintains fire resistance of walls or floors penetrated by combustible pipework.

Fire Performance: Tested for up to 240 minutes of fire resistance in walls and floors.

Advantages: Fire tested up to 240 minutes, suitable for various pipe materials, easy to install, and packaged for lower inventory cost.

Installation: The strip is fixed around the pipe with metal brackets, bolted or screwed into the surrounding surface.

Technical Data: Provides up to 240 minutes of fire rating according to BS 476: Part 20: 1987.

Tables: Various tables provide data on pipe sizes, wall thickness, integrity, and insulation times for different materials and conditions.

Catalog excerpts

The Passive Fire Protection Handbook Chapter 7: Penetration Seals

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals IMPORTANT NOTE: Because of the diversity of applications and the on-going test programmes, the following notes on this section are of a general nature only and it is essential to confirm that the system specified or being installed is approved for use. Please contact the Promat Technical Services Department to confirm correct specification. FLOORS, SLABS OR WALLS In every application discussed in this handbook, irrespective of whether it is using a Promat product or system, the importance of sealing any gaps in fire resisting constructions...

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals Failure Criteria Failure is measured in terms of integrity and insulation. Stability (or structural adequacy) is not recorded for service penetrations. Integrity failure occurs when cracks, holes or openings occur through which flames or hot gases can pass. This is measured in different ways, depending upon the standard used. a) Using a cotton pad, held against any gap, to see if the cotton pad ignites within 10 seconds; or b) If the gap is equal to or greater than 150mm x 6mm; or c) If a 25mm diameter probe can pass through a...

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals Fire resistance period? Wall, floor, linear gap? Insulation requirement? Mechanical strength? Thermal expansion ● Frequency of change to services Fire rated Electrical cables With damper Single cables Cable trays Steel or cast iron ● Intumescent systems in lightweight constructions ● Smoke or toxicity in populated zones ● Rigid seals in ‘dynamic’ barriers ● Dusty or friable materials in clean-room applications ● Large spans and thermal expansion

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals – Fire Collars FIRE COLLARS FOR PLASTIC PIPE PENETRATION It has been shown that plastic pipes penetrating compartment walls or floors or other fire barriers present the potential for fire to pass from one compartment to another when the plastic melts and burns away. All Building Regulations specify that the fire rating of the separating building element between compartments must not be impaired by services that pass through them. The acceptable methods of maintaining this fire rating will vary, however by far the most acceptable...

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals - Promat PROMASEAL® Intumescent Acrylic Sealant Promat PROMASEAL® Intumescent Acrylic Sealant is supplied in a 310ml cartridge and has excellent adhesion to most types of surfaces. The sealant cures in air to form a non-hardening, tack-free seal, preventing the passage of smoke, toxic gases and fire. APPLICATIONS Promat PROMASEAL® Intumescent Acrylic Sealant is suitable for sealing small gaps and holes in applications requiring up to 240 minutes fire resistance. Promat PROMASEAL® Intumescent Acrylic Sealant is suitable for most...

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals - Promat PROMASEAL® Intumescent Acrylic Sealant Certifire Approval No CF 431 Table 7a Promat PROMASEAL® Intumescent Acrylic Sealant - Approval Matrix Wall and Floor Installations Promat PROMASEAL® Intumescent Acrylic Sealant Product Name Minimum Seal Depth (mm) Backing Material Integrity (mins) Insulation (mins) Hardwood/ aerated blockwork Softwood/ aerated blockwork Steel/ aerated blockwork Steel/ aerated blockwork Brick/autoclaved aerated concrete Autoclaved aerated concrete/autoclave aerated concrete Autoclaved aerated concrete/autoclave...

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals - Promat PROMASEAL® Silicone Sealant Promat PROMASEAL® Silicone Sealant is a silicone-based fire protection sealant, supplied in 310ml cartridges. Adhesion is excellent to most types of surface. The sealants cure in air to form a non-hardening, tack-free seal, preventing the passage of smoke, toxic gases and fire. APPLICATIONS Promat PROMASEAL® Silicone Sealant is suitable for sealing small gaps and holes in applications requiring up to 240 minutes fire resistance. Promat PROMASEAL® Silicone Sealant would be required for service...

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The Passive Fire Protection Handbook PROMASEAL® Silicone Sealant base Cure system 4mm/day approx. 10mm/6 days approx. Skin over time (23oC, 50%RH) Overpaint times Application temperature range Service temperature range Joint length (m) x joint width (mm) x sealant depth (mm) Joint movement capability Chapter 7: Penetration Seals - Promat PROMASEAL® Silicone Sealant QUANTITY REQUIRED Promat PROMASEAL® Sealants are packaged in 310ml cartridges. To calculate the approximate number of cartridges required, use the following formula: 310 This does not allow for wastage. Please note that joint length...

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals - Promat PROMASEAL® Sealants PENETRATION SEALS Promat PROMASEAL® Intumescent Acrylic or Silicone Sealant are ideal for sealing small gaps with or without penetrating elements. Supplied in a 310ml cartridge. They are also ideal for sealing around metal pipes, cables, conduits, bus ways and ducts which penetrate walls or floors. They bond to masonry, concrete, calcium silicate board, plasterboard, 3 metal and cable coverings and remains flexible after curing to accommodate thermal movement. PROMASEAL® Silicone Sealant is suitable...

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The Passive Fire Protection Handbook Chapter 7: Penetration Seals - Promat PROMASEAL® Sealants CONTROL JOINTS Promat PROMASEAL sealants are intumescent acrylic or ® silicone based gunable sealants designed for fire resistant sealing of joints and services penetrations against spread of smoke, toxic gases and fire for up to 240 minutes fire resistance. Adhesion is excellent to most types of surface. They cure in air to form a non-hardening, tack-free seal. When specifying or sourcing a sealant for a control joint, it is essential that the characteristics of each control joint are taken into account....

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