In the quest for energy - efficient insulation solutions, Vacuum Insulation Panels (VIPs) have emerged as game - changers. Among the top contenders are Fiberglass VIP and Fumed Silica VIP. This article explores their unique properties, applications, and key differences to help you make an informed choice.

What is a Vacuum Insulation Panel (VIP)?

VIPs are advanced insulation materials that achieve ultra - low thermal conductivity by combining a porous core material with a high - barrier envelope and vacuum technology. This design minimizes heat transfer through conduction, convection, and radiation, making them up to 10 times more efficient than traditional insulation like fiberglass or polyurethane.

Fiberglass VIP: The Workhorse of Industrial Insulation

Composition & Manufacturing

Fiberglass VIPs feature a core made of ultrafine glass fibers (7 - 13 μm diameter), formed via wet or dry processes. The envelope uses multilayer films (e.g., metalized PET, EVOH) to maintain vacuum integrity, while a getter system absorbs residual moisture and gases.

Performance Highlights

• Thermal Conductivity: 1.7–2.0 mW/(m·K) (dry - type: ≤1.7 mW/(m·K)).

• Size Range: 100x100 mm to 1000x1600 mm, thickness 5–50 mm.

• Customization: Tolerances ±5–15 mm (size), ±1.5–2 mm (thickness), plus special shapes.

Applications

• Construction: Wall/floor/roof insulation for energy - efficient buildings.

• Cold Chain: Refrigerators, freezers, and transportation containers.

• Industrial Equipment: Insulation for cryogenic tanks and HVAC systems.

Fumed Silica VIP: Precision Insulation for High - Tech Needs

Composition & Manufacturing

Fumed Silica VIPs use nanoporous silica aerogel as the core material, produced via hydrolysis of silicon tetrachloride. This creates a network of air pockets that drastically reduce thermal conductivity. The envelope and getter system are similar to fiberglass VIPs but optimized for extreme vacuum stability.

Performance Highlights

• Thermal Conductivity: ≤4.5 mW/(m·K) (industry’s lowest).

• Dimensional Stability: Resists deformation under temperature/humidity fluctuations.

• Design Flexibility: Customizable sizes for aerospace, medical, and electronics.

Applications

• Pharmaceuticals: Temperature - controlled storage of vaccines and biologics.

• Aerospace: Lightweight insulation for spacecraft and cryogenic systems.

• Electronics: Thermal management in high - performance computing.

Choosing the Right VIP for Your Project

• Opt for Fiberglass VIP if you need cost - effective, scalable insulation for construction or cold storage.

• Choose Fumed Silica VIP for mission - critical applications requiring ultra - low conductivity and lightweight design (e.g., aerospace, pharmaceuticals).