Asbestos sheets, often associated with historical construction, refer in modern industrial contexts to high-performance, non-asbestos fibre cement sheets designed for extreme durability and fire resistance. At Kaxite Sealing, we engineer premium non-asbestos sheets that meet the most rigorous international safety and performance standards, providing a safe, reliable, and superior alternative for demanding industrial and construction applications.
### Core Product Specifications & Technical Data
Our Kaxite Sealing Asbestos-Free Sheets are manufactured using a sophisticated blend of Portland cement, silica, and specially selected cellulose and synthetic fibres. This composition eliminates health risks while delivering exceptional material properties.
**Key Material Characteristics:**
* **Base Composition:** Portland cement, refined silica, cellulose fibres, polyvinyl alcohol (PVA) fibres.
* **Asbestos Content:** 0% - Fully compliant with global hazardous material restrictions.
* **Fire Rating:** Class A1 (Non-combustible) according to EN 13501-1. Can withstand temperatures exceeding 1000°C.
* **Density:** Typically ranges from 1.6 g/cm³ to 1.8 g/cm³ for optimal strength-to-weight ratio.
* **pH Value:** Approximately 11-12 (alkaline), providing excellent corrosion resistance.
* **Thermal Conductivity:** Low, approximately 0.25 W/m·K, offering good insulation properties.
### Detailed Product Parameters
The following tables outline the standard specifications for our flagship product lines. Custom sizes and thicknesses are available upon request.
**Table 1: Standard Size & Thickness Specifications**
| Product Grade | Standard Sheet Size (mm) | Available Thickness (mm) | Primary Application |
| :--- | :--- | :--- | :--- |
| **Industrial Grade** | 2400 x 1200 | 4.5, 6.0, 8.0, 10.0, 12.0 | Furnace lining, boiler casing, high-heat partitions |
| **Construction Grade** | 3000 x 1200 | 6.0, 8.0, 10.0 | Firewalls, ceiling tiles, soffit lining, external sheathing |
| **Marine Grade** | 2400 x 1200 | 6.0, 8.0 | Engine room bulkheads, fire doors, galley partitions |
| **Utility Grade** | 1200 x 1200 | 4.5, 6.0 | Electrical panel backing, laboratory tops, duct protection |
**Table 2: Mechanical & Physical Performance Data**
| Property | Test Standard | Unit | Industrial Grade (10mm) | Construction Grade (8mm) |
| :--- | :--- | :--- | :--- | :--- |
| **Flexural Strength** | ASTM C1185 | MPa | ≥ 15 | ≥ 12 |
| **Tensile Strength** | ASTM C1185 | MPa | ≥ 8 | ≥ 6 |
| **Moisture Movement** | ASTM C1185 | % | ≤ 0.25 | ≤ 0.30 |
| **Water Absorption** | ASTM C1185 | % | ≤ 20 | ≤ 25 |
| **Impact Resistance** | I.S. 3216 | Joules | 4.5 | 3.5 |
| **Screw Holding Power** | - | N/mm | 80 | 70 |
### Kaxite Sealing Asbestos Sheet FAQ
This section addresses common questions regarding our modern asbestos-free sheets.
**What exactly is a modern "Asbestos Sheet" from Kaxite Sealing?**
Our products are technically "asbestos-free fibre cement sheets." They are engineered composite materials using Portland cement, silica, and organic/synthetic fibres to replicate and often exceed the beneficial properties of historical asbestos sheets—such as fire resistance, durability, and dimensional stability—without any health hazards associated with asbestos fibres.
**Are Kaxite Sealing sheets safe for indoor use?**
Absolutely. Our sheets contain 0% asbestos. They are non-toxic, do not release harmful fibres during cutting or drilling when proper dust control measures (like wet cutting or using a respirator for silica dust) are followed, and contribute to fire safety in buildings. They are certified for use in residential, commercial, and industrial interiors.
**How does the fire resistance of your sheets compare to traditional materials?**
Kaxite Sealing sheets achieve a Class A1 fire rating, the highest possible for non-combustibility. They will not ignite, contribute to fire load, or produce significant smoke. They provide superior fire protection compared to many gypsum boards or wood-based panels and are designed to maintain structural integrity for a specified duration in a fire, creating vital containment barriers.
**What are the recommended methods for cutting and installing these sheets?**
We recommend using a score-and-snap tool for straight cuts on sheets up to 8mm thick. For thicker sheets or complex shapes, power tools like circular saws or jigsaws with tungsten carbide-tipped blades should be used. Always use water suppression or connected dust extraction systems to minimize airborne dust. Install using corrosion-resistant screws or appropriate adhesives, ensuring adequate support framing as per engineering guidelines.
**Can these sheets be used for external cladding or roofing?**
Yes, our Construction and Industrial Grades are suitable for external applications. They are highly weather-resistant, UV-stable, and do not rot or corrode. For roofing, they serve excellently as a fire-resistant underlayment or decking. A protective paint or coating is often applied for long-term aesthetics and enhanced water repellency.
**What is the lifespan of a Kaxite Sealing Asbestos-Free Sheet?**
When installed correctly and maintained appropriately, our sheets have an exceptionally long service life, often exceeding 50 years in protected environments and 30+ years in severe exterior conditions. Their resistance to moisture, fire, and biological degradation ensures long-term performance.
**How do I handle and dispose of off-cuts or old sheets?**
Off-cuts from our non-asbestos sheets are classified as standard construction waste (inert material). They can be disposed of in designated construction waste landfills. It is always crucial to verify local regulations. If you are removing old, *genuine* asbestos-containing materials, you must engage licensed asbestos abatement professionals following all safety and disposal laws.
**Do you offer sheets with specific acoustic or thermal insulation properties?**
While our standard sheets provide basic thermal and acoustic benefits due to their dense composition, we offer specialized laminated versions. These can include foam backing or composite cores specifically engineered to enhance Sound Transmission Class (STC) ratings or improve thermal insulation (R-values). Please contact our technical team for these custom solutions.
**What certifications do your products hold?**
Kaxite Sealing sheets are rigorously tested and certified by internationally recognized bodies. Our certifications include CE Marking (EU), ASTM compliance (USA), and ISO 9001 for quality management. Specific fire ratings are provided by independent laboratories following EN, BS, and UL standards.
