Crystalline CR20

CR20 for panoramic/double sunroofs – complete coverage of larger panoramic glass. 64% TSER and 97-98% IRR. Transforms panoramic roofs into cool, UV-safe features.

The 3M Crystalline CR20's 64% TSER and 97‑98% IR rejection are engineered to meaningfully cool the cabin under Indian summer sun. This dual‑layer technology absorbs and reflects infrared rays while still allowing visible light, so the interior stays cooler without making the roof appear dark. CR20’s core technology uses a proprietary multi‑microporous structure that selectively filters solar energy. The film’s nano‑ceramic pigments reflect infrared wavelengths, while a UV‑blocking layer absorbs 99 % of UV‑A and UV‑B rays, preventing fading of interior fabrics and protecting skin from harmful radiation. In everyday Indian driving, the film reduces reliance on the air‑conditioner, leading to lower fuel consumption and less strain on the vehicle’s electrical system. The limited‑lifetime warranty ensures long‑term performance, provided the film is installed correctly and the glass is cleaned with non‑abrasive products.

While CR20 delivers excellent IR and UV rejection, the visible light transmission (VLT) is reduced, which may slightly dim the panoramic view compared to an untreated glass. The film’s high performance requires professional installation to avoid bubbles and ensure edge sealing; DIY attempts can lead to premature delamination. Over time, extreme temperature cycles may cause minimal edge lift if not properly maintained. Finally, the limited‑lifetime warranty applies only when installed by an authorized dealer, so non‑standard installers could affect warranty validity.

After installation, keep the roof glass clean with a pH‑neutral glass cleaner and a soft microfiber cloth; avoid abrasive polishes that can damage the film’s outer layer and reduce its IR‑blocking efficiency. Regular gentle cleaning helps maintain optical clarity and prolongs the film’s heat‑rejection performance.