PET Silicone Film: Avoid Yellowing
author: Shenzhen Guangda Yuan Film Co., Ltd.
2025-12-03
“PET film yellowed, messed up glass!” A California glazier lost $800—generic PET silicone film discolored after 4 months, leaving hazy yellow marks on high-end mirrors. For glass businesses, yellowed film ruins products and damages reputation. The culprit? Low-grade PET uses recycled resin with impurities that oxidize, or skips heat-resistant additives.
Guangdayuan’s PET silicone film uses 100% virgin PET resin and mixes in 2.5% benzotriazole UV absorbers. This stops both heat and light-induced yellowing—even in 50℃ shipping containers. Our precision curing process (80℃ for 72 hours) locks in clarity, and the silicone glue is non-reactive, so it never stains glass.
An Abu Dhabi client attested: “Mirrors look brand-new after 6 months.” We also add an anti-static layer to prevent dust buildup (dust traps heat and speeds up yellowing). Every roll is tested for yellowing resistance, and we offer free samples to test compatibility.
Keep glass products perfect—order our PET film here: //www.petprotectivefilm.com/en/contact-us.html
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