Understanding PC (Polycarbonate) Physical and Chemical Boards vs. Compact Laminate Boards

When using polycarbonate (PC) physical and chemical boards, have you ever noticed cracking? Do you know why this happens? Let’s explore the causes of cracking in these boards and compare them with the performance of compact laminate boards.

Why Do PC Physical and Chemical Boards Crack?

PC physical and chemical boards are widely used for their strong insulating properties—both thermal and acoustic. However, they are prone to stress cracking, a phenomenon rooted in the material’s structure and production process.

During co-extrusion, the polycarbonate molecular chains are forced into an oriented state. Due to the presence of benzene rings in the molecular structure, these chains have a lower tendency to relax back to their original configuration. Once the material cools and solidifies, this orientation becomes locked in, creating residual internal stress. Over time, this stress can lead to visible cracking.

But cracking is not inevitable. The likelihood depends on factors such as:

• The molecular chain length

• The degree of entanglement between molecular chains

• The intermolecular forces

If the internal stress and the material’s crack resistance are properly balanced during manufacturing, cracking can be avoided.

Why Compact Laminate Boards Do Not Crack

Compact laminate boards are inherently more stable. They are made by layering decorative paper soaked in melamine resin with multiple sheets of kraft paper impregnated with phenolic resin. These layers are then compressed under high temperature (around 150°C) and high pressure (1430 psi), resulting in a dense and durable board. Thicknesses range from 1mm to 30mm.

The structure of compact laminate boards provides excellent stability, minimizing the risks of internal stress or cracking.

Key Features of Compact Laminate Boards

Compact laminate boards are widely used in public and commercial environments such as:

• Schools

• Hospitals

• Airports and train stations

• Hotels and shopping malls

• Offices and workstations

• Kitchens and dining areas

• Public restrooms and washbasins

• Lockers and partitions

These boards are known for their exceptional durability and wide range of color and design options. They are available with single- or double-sided finishes.

Advantages of Compact Laminate Boards

1. Waterproof, moisture-proof, and mildew-resistant

2. Antibacterial and chemical-resistant (resistant to strong acids and alkalis)

3. Impact, scratch, and wear resistant

4. UV resistant and easy to clean

5. Fire and smoke resistant

6. Stable, flat, and not prone to deformation

7. Diverse surface finishes and rich color options

8. Non-toxic, safe, and environmentally friendly

   

Maintenance Tips

Although highly durable, compact laminate boards still require proper care to maintain their appearance:

• Do not place high-temperature items directly on the surface.

• Avoid placing lit cigarettes on the board.

• Clean with a mild, non-abrasive cleaner and a soft cloth.

• Do not use abrasive powders, steel brushes, or harsh tools, as they can damage the surface.

• For textured or hard-to-reach areas, use a soft brush with a gentle cleaning agent.

• Commercial bright wax can be applied, but avoid abrasive waxes.

• Never use acidic cleaners, as they can cause permanent damage.

Conclusion: Choosing the Right Material Based on Use

For environments requiring high optical clarity, impact resistance, and thermal performance, PC physical and chemical boards are appropriate—but require careful handling to prevent stress cracking. For robustness, chemical inertness, and longevity in public or humid environments, compact laminate boards offer unmatched stability and ease of maintenance.

By understanding the molecular mechanisms behind cracking and leveraging appropriate application and maintenance strategies, we can optimize both the performance and durability of these advanced building materials.