Stopseal LJS Liner Joint Seal

Stopseal® LJS - In-Depth Description

Stopseal® LJS is a premium, intumescent thermo-plastic fire sealant that combines advanced flame retardants and binders to offer superior fire protection. This innovative product is specifically engineered for reinstating the fire resistance of wall and floor constructions, particularly in linear gap seals, where fire safety is critical. It is designed to provide both long-term durability and high performance under extreme conditions.

Key Features:

• Intumescent Technology:
  Stopseal® LJS features an intumescent formulation, meaning that it expands significantly when exposed to heat or fire. This volume expansion forms a robust, pressure-resistant seal that prevents the spread of flames, smoke, and hot gases, effectively maintaining the fire integrity of the building structure during a fire event.

• Flame Retardant Fillers:
  The product is filled with a combination of flame retardants and binders, which are integral in enhancing the material's fire resistance properties. These elements work together to provide reliable and consistent fire protection, ensuring that Stopseal® LJS can withstand high temperatures without compromising its sealing performance.

• Elastomeric, Acoustic-Rated Foam:
  Stopseal® LJS is encased in a flexible elastomeric foam that allows for significant movement, accommodating building movement or thermal expansion without losing its sealing capabilities. The foam also provides acoustic ratings, contributing to sound insulation and reducing noise transfer between rooms or floors.

• High Movement Tolerance:
  The elastomeric nature of the foam allows Stopseal® LJS to accommodate substantial movement in construction elements, making it ideal for applications where structural flexibility is required. This feature ensures that the sealant remains effective even as the building settles or shifts over time.

• Reinstates Fire Resistance:
  Stopseal® LJS is specifically formulated to reinstate the fire resistance of existing wall and floor constructions, particularly in areas where linear gap seals are needed. It effectively closes gaps around services, joints, and edges, maintaining the fire rating of the building’s walls and floors in compliance with fire safety regulations.

Applications:

Stopseal® LJS is suitable for a wide range of applications in both commercial and residential buildings, including:

• Linear Gap Seals:
  Ideal for sealing gaps around doors, windows, and service penetrations in walls and floors, ensuring that fire resistance is reinstated in these critical areas.

• Fire and Smoke Compartments:
  Effective in creating barriers within fire-rated compartments, preventing the spread of fire and smoke through gaps.

• Penetrations for Services:
  Stopseal® LJS is commonly used around pipes, cables, ducts, and other services passing through fire-rated walls or floors, maintaining the fire and smoke integrity of the structure.

• Acoustic Applications:
  Its acoustic properties make Stopseal® LJS ideal for situations requiring both fire protection and sound insulation, such as in multi-residential buildings, commercial offices, and hotels.

Benefits:

• Enhanced Fire Protection:
  Stopseal® LJS delivers reliable fire performance, expanding in response to heat to form a strong seal that prevents the passage of flames, smoke, and gases.

• Durability and Longevity:
  This product is designed for long-term use, with its elastomeric foam and intumescent technology ensuring that it performs consistently over time, even in challenging environments.

• High Flexibility and Movement Capability:
  The sealant can accommodate significant building movement without compromising its effectiveness, making it ideal for dynamic building structures.

• Acoustic Insulation:
  The acoustic-rated foam helps reduce sound transmission, providing additional benefits in noise-sensitive environments, contributing to improved soundproofing between rooms or floors.

• Regulatory Compliance:
  Stopseal® LJS meets fire safety regulations, offering a compliant solution for building projects requiring effective gap sealing and fire-resistance reinstatement.

Technical Specifications:

• Material Composition: Intumescent thermo-plastic with flame retardants and binders.
• Movement Capability: Allows for substantial movement in building structures.
• Acoustic Rating: Designed to reduce sound transmission through walls and floors.
• Application Type: Linear gap seals, service penetrations, fire-rated walls and floors.
• Fire Rating: Reinstates fire resistance of wall and floor constructions.