How long time does smart glass/film change from opaque to transparent?-Global Smart Glass

1. What is self-adhesive smart film and smart glass

Self-Adhesive Smart Film:

A flexible polymer-based film (typically PDLC: Polymer Dispersed Liquid Crystal) with an adhesive layer on one side. It is applied directly to existing glass surfaces like a sticker.

Smart Glass:

A laminated glass unit where PDLC film is permanently sandwiched between two layers of glass using EVA or PVB interlayers under high pressure/temperature. This creates a solid, structural glazing product.

2. Installation & Application

Feature	Self-Adhesive Smart Film	Smart Glass
Installation	Peel-and-stick onto existing glass; DIY-friendly.	Requires professional glazing; replaces entire glass unit.
Best For	Retrofitting existing windows/glass partitions.	New constructions or full renovations.
Complexity	Some skill is needed: 1. How to install the film; 2. How to deal with the edge sealant; 3. How to hide the wire. How to install the self-adhesive smart film?	Install the glass as the normal glass except for considering how to hide the wire. How to make smart glass?

3. Functionality & Performance

• Optical Clarity:
Both switch between transparent (ON) and opaque (OFF) via electricity. Smart Glass often has higher clarity due to glass encapsulation.

• Energy Efficiency:
Identical function: Blocks ~99% UV rays and reduces heat gain.
Power consumption is low (~5W/m²/hour).

• Durability:
Smart Glass is more robust (scratch resistant, impact-resistant, safety-glass properties, longer life time). Film is vulnerable to peeling/scratches comparing with smart glass.

• Safety:
Smart glass remains secure after breaking. Film lacks structural security but can prevent glass from shattering.

4. Applications

• Film: Ideal for retrofitting offices, shower doors, storefronts, or rental properties.

• Glass: Suited for high-end architectural projects (facades, security rooms, partitions), automotive sunroofs, and aviation.

5. Pros vs. Cons Summary

Type	✅ Pros	❌ Cons
Self-Adhesive Film	Affordable, easy install, UV/heat blocking, retrofit-friendly	Less durable, no structural safety, prone to air bubbles, Lower clarity than smart glass.
Smart Glass	Premium finish, enhanced safety/durability, seamless integration, higher clarity and performance than film.	High cost, inflexible for existing spaces, complex replacement.

Conclusion

Choose self-adhesive smart film for cost-effective, non-invasive upgrades to existing glass. Opt for smart glass in new builds or high-traffic areas demanding durability and safety. Both deliver dynamic privacy/energy savings but cater to different project scales and budgets.