Hot Insulation

Cold Insulation

Glasswool Blanket

Glass Wool is a thermal and acoustic insulation material made from glass fibers (fiberglass), produced by melting glass at high temperatures and then spinning it into fine, wool-like fibers. This fibrous structure creates air pockets that effectively reduce heat transfer and absorb sound.

This material is widely used in construction and industrial applications due to its lightweight and flexible properties, as well as its good insulation performance with optimal cost efficiency.


Characteristics & Advantages

  • Good Thermal Insulation – Effectively reduces heat transfer
  • Acoustic Insulation – Absorbs and reduces noise
  • Lightweight & Flexible – Easy to install on various surface shapes
  • Non-Combustible – Does not easily burn or propagate flame
  • Energy Efficient – Helps reduce energy consumption
  • Easy to Cut & Shape – Can be customized to fit installation requirements
  • Moisture Resistant – Low water absorption (foil facing available)
  • Cost-Effective – Provides an economical insulation solution

General Specifications

  • Material: Glass Fiber (Fiberglass)
  • Maximum Working Temperature: Up to approximately 250°C
  • Density: ± 12 – 48 kg/m³
  • Forms:
    • Roll (blanket)
    • Board / panel
  • Thickness: ± 25 – 100 mm
  • Width: Typically ± 1.2 meters
  • Length: ± 10 – 30 meters (roll)
  • Facing Options: Aluminium foil / kraft paper (optional)
  • Thermal Conductivity:
    • Approx. 0.035 – 0.045 W/mK (at 200°C)
  • Color: Yellow

Applications

Glass Wool is widely used in various construction and industrial applications, including:

  • Roof, wall, and ceiling insulation
  • HVAC systems (ducting and air conditioning)
  • Acoustic insulation (studios, auditoriums, etc.)
  • Insulation for pipes and medium-temperature equipment
  • Commercial buildings, residential projects, and light industries
  • Partition walls to improve acoustic comfort

WILGLASS Brand

This Glass Wool product is marketed under the WILGLASS brand, the official brand of PT. Willich Isolasi Pratama. WILGLASS provides high-quality insulation solutions with controlled and consistent material standards.

With a focus on efficiency and performance, WILGLASS ensures that every product delivers:

  • Consistent material quality
  • Optimal thermal and acoustic insulation performance
  • Ease of installation across various applications
  • Cost efficiency without compromising quality

WILGLASS is the ideal choice for insulation needs that prioritize comfort, energy efficiency, and economic value in both construction and industrial projects.