The Evolution of Smart Tint®: A Technological Timeline

1984

1984 – The Birth of PDLC Technology

Polymer-Dispersed Liquid Crystal (PDLC) technology was first patented by J.L. Fergason in the United States. His invention, based on a micro-emulsion method, allowed glass to switch between transparent and opaque states using an electric current. By 1987, Raychem Corporation secured exclusive patent rights. Early PDLC technology required high voltage, was expensive, and had a limited lifespan of fewer than three years. It had a haze factor of 12%, slow cycling speeds, and was sensitive to temperature variations.

1984

1999 – Smart Tint® is Born

Smart Tint revolutionized the industry by developing a low-voltage, energy-efficient switchable film, eliminating the need for costly Smart Glass. By embedding PDLC between two layers of polyethylene plastic, Smart Tint dramatically reduced haze to 4% and made the technology more accessible.

2012 – Patents & Industry Advancements

Smart Tint secured multiple U.S. Patent and Trademark registrations for Smart Tint®, Smart Film®, and Smart Cling®. During this period, proprietary advancements further reduced the haze factor to less than 2%. The unique Smart Cling® backing allowed the film to self-outgas, preventing heat-induced glass fractures—an issue that plagued other self-adhesive films.

2020 – 20 Years of Leadership & NEC Certification

Celebrating its 20th anniversary, Smart Tint became the only switchable film in the industry certified by the National Electric Code (NEC). It achieved an industry-leading haze factor of less than 1.5%, solidifying its reputation as the premier switchable film solution.

2022 – Smart Security Film: Riot Tint®

Smart Tint introduced Riot Tint®, the first Smart Security Film, which provides both privacy on demand and impact resistance. This fire-rated film withstands over 14,000 psi of tensile strength, making it the top choice for school districts and security-sensitive applications. Additionally, the Nano-Hard Shell Scratch-Resistant Coating was applied to enhance durability.

2024 – UL & ISO Certification

Smart Tint became the only U.S. and Canada-based manufacturer to achieve ETL approval, complying with UL standards and ISO quality control certifications. This milestone reinforced Smart Tint’s commitment to safety, quality, and compliance in the industry.

2025 – Two Decades of Proven Performance

With Smart Tint installations operating flawlessly since 2005, the brand continues to set the standard for performance, reliability, and industry leadership. Its proprietary technology has stood the test of time, proving to be the most advanced and trusted Smart Film solution worldwide. Smart Tint remains the only manufacturer with UL compliance, ISO quality certification, and NEC approval, reinforcing its position as the industry leader in switchable film technology.

Industry Performance Grades

Film Grade	Price/sq.ft	Haze	Warranty	General Usage	ETL Certified
Classic	$25	4%	3 Years	Made in China; budget-friendly but not recommended for long-term, high-traffic use.	NO
Crystal	$37	3%	5 Years	Also made in China; good clarity/cost balance but not recommended for large commercial projects.	NO
Ultra	$65	2.2%	7 Years	Made in China; premium clarity but not recommended for the most rigorous applications.	NO
Architectural	$69	1.5%	10 Years	Made in the USA; ultra-low haze and robust warranty, ideal for demanding installations.	YES