Insulation Facing Description

Our foil faced vapor barrier is meticulously manufactured using a specialized 5-layer lamination process. Each layer is bonded together using a high-performance flame-retardant adhesive to ensure structural integrity and long-term reliability.

The 5-Layer Architecture:

Outer Layer (Aluminum Foil): Provides a high-reflectivity surface to reduce heat gain and acts as the primary moisture barrier.
Adhesive Layer: Flame-retardant bonding agent.
Reinforcement Layer (2-Way Scrim): A bi-directional glass fiber mesh that dramatically increases the tensile strength and puncture resistance of the facing.
Adhesive Layer: Double-sided coating to ensure the foil and kraft are firmly bonded.
Base Layer (60gsm Kraft): A flame-retardant treated Kraft paper that provides a stable, durable backing for the insulation material.

This fsk vapor barrier is essential for preventing condensation, which can lead to mold, mildew, and structural rot, while simultaneously improving the energy efficiency of the building or mechanical system.
Features & Benefits
- Superior Moisture Protection: Effectively blocks water vapor transmission, protecting insulation from dampness and degradation.
- Enhanced Energy Efficiency: Acts as a radiant barrier insulation, reflecting radiant heat to reduce energy loss in HVAC systems and metal buildings.
- Flame Retardant (F/R Grade): All layers, including the Kraft paper and adhesive, are treated to meet strict fire safety codes for commercial and industrial use.
- High Tensile Strength: The 2-way fiberglass scrim reinforcement prevents tearing during installation and provides long-term durability against mechanical stress.
- Anti-Corrosive & Mold Resistant: By eliminating moisture buildup, it prevents the growth of mold and mildew on the insulation surface.

Applications

The Aluminum Foil Vapor Barrier is the industry standard for facing on various insulation types:
- HVAC Ductwork: Serving as the exposed surface for duct wrap insulation to prevent air leaks and condensation.
- Metal Building Insulation: Used in walls and ceilings of warehouses and industrial facilities to regulate temperature.
- Pipeline Insulation: Protecting hot and cold pipes in industrial plants from environmental moisture.
- Exterior Wall Insulation: Providing a thermal and moisture shield behind cladding or within wall cavities.
- Tank Insulation: Used as a protective jacket for hot water tanks and industrial storage vessels.

Insulation Facing Technical Data

Composition:

Composition	Description	Value (English)	Value (Metric)
Foil	Aluminum	0.28 mil	7 micron
Reinforcing- MD	Fiberglass	1/2 inch spacing	12.5mm spacing
Reinforcing-XD	Fiberglass	1/2 inch spacing	12.5mm spacing
Adhesive	Polyethylene	-	-
Kraft	Natural	36.6 lbs / 3000 ft²	60gsm

Properties:

Physical properties	Test Method	Value (English)	Value (Metric)
Basis weight	Scale	19.4 lbs / 1000 ft²	95gsm
Permeance (WVTR)	ASTM E96, Procedure A	0.1 perm	5.75 ng/N.s
Tensile Strength-MD	ASTM D828	29.5 lbs / In	130 N/25mm
Tensile Strength-XD	ASTM D828	16lbs / In	70 N/25mm
Burst Strength	ASTM D774	43.5psi	30 N/cm²
Low temperature Resistance	ASTM D1790 4 hrs @ -40℉ (-40℃)	Remains Flexible No Delamination	Remains Flexible No Delamination
High temperature Resistance	ASTM D1790 4 hrs @ +240℉ (+116℃)	Remains Flexible No Delamination	Remains Flexible No Delamination
Emissivity	ASTM E408	-0.03	-0.03

Available Roll Width: 1.0m, 2.0m, 1.25m, 1.30m, 1.35m

FAQ：

Q1: What does "FSK" stand for?
A: FSK stands for Foil-Scrim-Kraft. It represents the three primary materials used: Aluminum Foil for reflectivity, Fiberglass Scrim for strength, and Kraft Paper for a durable backing.

Q2: Is this product fire-rated?
A: Yes. This is an F/R (Flame Retardant) grade material. All five layers are laminated with flame-retardant adhesive, and the Kraft paper is chemically treated to resist combustion.

Q3: Can this be used as a radiant barrier?
A: Absolutely. The aluminum foil outer layer is designed to reflect radiant heat, making it a highly effective radiant barrier insulation for both residential and industrial applications.

Q4: Does it prevent mold and mildew?
A: By acting as a high-performance aluminum vapor barrier, it prevents moisture from reaching the insulation and building materials, which is the primary cause of mold and mildew growth.

Q5: How does the 2-way scrim help during installation?
A: The bi-directional fiberglass mesh allows the material to be pulled and tensioned around corners and irregular surfaces without tearing, ensuring a seamless and professional finish on HVAC ducts and pipelines.