Wholesale Fire-retardant Modified PU FOAM B2 Manufacturer, Manufacturers

Flame-retardant modified PU Foam has a wide range of uses.The technology will not be fully passed until the summer of 2021. It can completely replace mortar adhesives in the future. The overall cost is 20% lower than traditional mortar adhesives. It is fast to construct and adheres well. It is durable and meets environmental protection requirements. It is mainly used for bonding joints of prefabricated partition panels and exterior wall insulation panels, saving energy and reducing consumption to contribute to carbon neutrality.

Product Description

Product Introduction

Our B2 Fire-Retardant Polyurethane Foam Sealant represents a significant advancement in building insulation and protection technology. Engineered to comply with stringent European fire classification standards (EN 13501-1), this "B2" rated foam offers a critical balance of superior performance and essential fire safety for a wide range of construction and renovation projects.

Unlike standard insulating foams that may contribute to fire spread, this specialized formulation is designed to resist ignition from small-scale fire sources, providing valuable time for occupant safety and emergency response. It is the go-to solution for professionals seeking a versatile, reliable, and safety-conscious material for sealing, insulating, and installing doors, windows, and building components.

Fire-retardant Modified PU FOAM B2 (4)

Core Characteristics & Technical Advantages

01

Certified B2 Fire-Retardant

Incorporates advanced flame-retardant additives. When exposed to small flames, it resists ignition, reduces flame spread, and self-extinguishes once the source is removed.

02

High Hardness & Structural Strength

Transforms into a rigid, high-strength polymer upon curing, offering excellent dimensional stability and crucial support for installed door and window frames.

03

Acoustic & Thermal Insulation

Closed-cell structure forms a highly effective barrier against sound transmission and traps air to minimize thermal transfer, boosting overall energy efficiency.

04

Exceptional Adhesion & Seal

Powerful primerless adhesion to concrete, brick, wood, PVC, and metals. Expands to create a continuous, airtight, and weatherproof seal.

Application Versatility & Ease of Use

Easy Application: Single-component formula dispensed via standard applicator gun for precise control. Tack-free in 20-30 minutes, fully cured in 24 hours, and easy to trim, sand, plaster, or paint.

Installation & Perimeter Sealing: Ideal for the permanent installation and sealing of door frames, window frames, and curtain walling.

Gap & Joint Filling: Efficiently seals gaps surrounding pipe or cable penetrations and joint connections between various building structures.

Insulation Enhancement: Fills hollow spaces within walls, roofs, and floors to significantly improve thermal retention and soundproof properties.

Fire Safety Upgrades: Supplies a supplemental fire-retarding seal in key spots where B2-certified building material is specified.

Frequently Asked Questions (FAQ)

Q What fire rating does this polyurethane foam sealant carry?

It is certified with a B2 fire-retardant rating according to European fire classification standards (EN 13501-1). This denotes normal flammability with effective resistance to ignition and self-extinguishing properties when the flame source is removed.

Q How long does the B2 foam sealant take to cure?

The foam sealant becomes tack-free within 20 to 30 minutes of application. It reaches its full cure and obtains its ultimate physical properties within 24 hours, depending on current humidity and temperature.

Q Which materials can the foam adhere to?

It provides strong adhesion to most common building substrates without needing primers, including concrete, brick, masonry, wood, PVC, and metals.

Q Can the foam sealant be painted or plastered after it is applied?

Yes, once the foam is fully cured (within 24 hours), it can be easily cut, trimmed, sanded, plastered over, or painted to achieve a clean, professional finish.

Q How does this foam assist in soundproofing and heat insulation?

The cured foam contains a tight closed-cell structure that dampens sound waves to block out ambient traffic or environmental noise. It also creates a thermal break that blocks heat loss in winter and blocks heat gain in summer.

Q Does the foam deform or warp window and door frames during installation?

The foam is formulated with controlled expansion characteristics to minimize the risk of over-expansion. Upon curing, it becomes a rigid polymer that provides support to help prevent shifting under wind or structural shifts.

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