Double-layer bubble insulation material is a highly efficient composite thermal insulation material. It uses the dual principles of air layer insulation and reflective insulation, and is widely used in construction, industry, agriculture and other fields to reduce heat transfer and improve energy efficiency.

This material consists of three basic structures to form a "sandwich" composite layer:

• Outer layer (two sides): High reflective aluminum foil layer made of polyethylene or polyester film coated with high-purity aluminum foil. Reflects most of the radiant heat (95%-97%) and provides waterproof, moisture-proof, corrosion-resistant properties.
• Middle layer: Double-layer polyethylene bubble film containing closed independent air bubbles that effectively block heat conduction. Some products use XPE cross-linked polyethylene foam or glass fiber cotton to enhance thermal insulation or fire resistance.

• Reflection and insulation of radiant heat through aluminum foil layer
• Air layer blocks conductive heat with low thermal conductivity
• Closed bubble structure inhibits air flow and reduces heat convection

• Roof/wall insulation
• Floor heating reflective layer
• Sun room/garage insulation

• Pipeline insulation
• Equipment insulation for storage tanks, boilers, etc.

• Greenhouse outer covering
• Daytime insulation and nighttime heat preservation