What materials are Surface Protection Films usually made of

Common Materials for Surface Protection Films

• Polyethylene (PE)
  Flexible, lightweight, cost-effective.
  Provides basic protection against scratches, dust, and minor impacts.
  LDPE: Soft, transparent (suitable for glass/polished metal).
  LLDPE: Better stretchability for irregular shapes.
• Polypropylene (PP)
  Stiffer and more heat-resistant than PE.
  Suitable for moderate temperature applications (e.g., electronic components).
  Offers good clarity and chemical resistance (used in automotive/industrial settings).
• Polyester (PET)
  High tensile strength, dimensional stability, heat resistance (up to 150°C+).
  Used in high-precision industries (semiconductors, LCD screens, aerospace).
  May include anti-static/anti-fingerprint coatings.
• Polyvinyl Chloride (PVC)
  Strong adhesion, flexible (suitable for rough/uneven surfaces).
  Good impact resistance but may leave residue from plasticizers.
  Used in construction (floors/walls) or temporary machinery protection.
• Polyurethane (PU)
  Highly elastic, abrasion-resistant (ideal for curved surfaces).
  Stretches without tearing, often with self-healing properties for scratch resistance.
• Silicone-Coated Films
  Use residue-free, easily removable silicone adhesives.
  Popular for high-transparency applications (smartphone screens, optical lenses).