Fireproof PU Foam

Fireproof polyurethane foam, also known as flame retardant foam, is a material used for fire isolation that can slow the spread of fire when a fire occurs. Generally, the fire resistance level of flame retardant foam is assessed based on factors such as its flame retardancy, high temperature resistance, and fire resistance time. It is generally used in high-temperature and flammable places. Some customers have special requirements for special foams, such as project engineering and factories. It mainly plays a role of sealing and barrier, and some people use it as a sound insulation board.

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Product Advantage

Advantage:

Certified Fire Retardancy: Formulated to meet stringent fire safety standards , effectively resisting ignition and limiting flame spread.

Effective Thermal Insulation: Provides a protective thermal barrier, reducing heat transfer to safeguard structural elements.

Self-Extinguishing Performance: Engineered to char and extinguish itself upon removal of the direct flame source, preventing sustained combustion.

Excellent Workability: Once cured, the rigid foam can be easily and precisely cut, sawn, and shaped using common woodworking or utility tools for a custom fit.

Professional Fire-Rated Formulation: A high-performance Polyurethane (PU) foam specifically designed for applications requiring certified fire-stopping and compartmentation

Product Uses

Application:

1. Fire Stopping for Construction Gaps

Used for sealing penetrations in floors, walls, and around pipes or cable trays. Its fire-retardant and self-extinguishing properties effectively prevent the spread of flame and smoke through gaps, maintaining the integrity of fire compartments and ensuring compliance with building codes.

2. Perimeter Sealing for Door and Window Frames

Ideal for filling the installation gaps between fire-rated doors/windows and surrounding masonry. The foam provides excellent thermal insulation, while its professional fire-rating helps maintain the fire resistance level of the entire assembly, which is critical for the overall performance of the fire safety system.

3. Insulation for Ductwork and Pipe Penetrations

Applied to insulate air ducts, water pipes, and utility shafts within buildings. It not only reduces heat loss but its fire-retardant properties also mitigate the risk of fire ignition from overheated pipes or adjacent fires. The foam's cuttability and sawability after curing allow for precise fitting around complex shapes and pipes on-site.

Product Operate Guide

1.Before The Construction, Should Remove The Construction Surface Oil And Floating Dust, And

A Small Amount Of Water Sprayed On The Construction Surface.

2.In The Temperature Range From 0 ° C To 40 ° C, It Is Suggested To Preheat The Tank In The

Environment Of 30 ° C In Order To Ensure The Effect Of The Construction In The Cold Season.

3.Before Use, Shake The Polyurethane Foam Caulking Agent Tank For At Least 60 Seconds To

Ensure That The Material In The Tank Is Even.

4.If The Gun-Type One-Component Polyurethane Foam Sealant Is Used, The Feed Tank Is Inverted And Connected With The Spray Gun Thread, The Flow Valve Is Rotated To Open, And The Flow Rate Is Adjusted Before The Spray.

FAQ

How does the self-extinguishing / fire-retardant mechanism work?

The foam is formulated with advanced fire-retardant additives. When exposed to flame, it undergoes a chemical reaction that either causes it to intumesce (swell and form an insulating char) or simply cease combustion once the ignition source is removed. This char layer acts as a barrier, protecting the underlying material and preventing the spread of flame.
What is the working time (tack-free time) and full cure time? How long before I can cut it?

The tack-free time is typically between 10-20 minutes, depending on ambient temperature and humidity. The foam is fully cured and can be cut, sawn, or shaped within 1-4 hours. We always recommend consulting the product's Technical Data Sheet for precise details under specific conditions.
Is the foam suitable for outdoor applications or does it require a firestop coating?

While the foam itself is fire-retardant, most fire-rated applications, particularly in penetrations and outdoor settings, require the foam to be sealed with a certified firestop coating or intumescent sealant. This system ensures the entire assembly maintains its integrity against flames, smoke, and environmental elements like UV radiation and water.
After cutting and shaping the cured foam, is the exposed surface still fire-retardant?

Yes, the fire-retardant properties are consistent throughout the entire material, not just on the surface. Any cut or sawn surface will maintain the same self-extinguishing and thermal insulation performance as the original skin.