CPVC resin is produced by chlorinating PVC (polyvinyl chloride) resin, forming a new engineering plastic with excellent performance and broad applications. 

It appears as a white to light yellow, odorless, tasteless, non-toxic loose powder. Chlorination increases molecular chain irregularity and polarity, enhancing solubility and chemical stability. It shows improved resistance to acids, alkalis, salts, and oxidizers, with higher heat distortion temperature and mechanical properties. Chlorine content rises from 56.7% to 63–72%, raising the Vicat softening temperature from 72–82°C to 100–125°C, allowing a maximum service temperature of 110°C and long-term use above 95°C.

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PVDC emulsion is a water-based dispersion with ultra-low oxygen (<0.1 cm³·mm/(m²·day·kPa)) and water vapor (<0.5 g·mm/(m²·day)) permeability, used in food packaging coatings, industrial anti-corrosion films, and medical light-shielding materials.

It appears as a slightly blue-tinted milky liquid with a double-charge stable surface, a high-solid aqueous dispersion of high-molecular resin applied as a topcoat after base adhesive. Stable at room temperature (similar to PTFE in storage), it offers high barrier performance, anti-adhesion, printability, and transparency—but is prone to heat/light-induced decomposition and yellowing.

PVDC (polyvinylidene chloride) resin is produced via suspension or emulsion polymerization, with a chlorine content of 64%–68% and a glass transition temperature (Tg) of approximately 40°C. It can be copolymerized with monomers like vinyl chloride and acrylate to improve processability and weather resistance, complying with FDA 21 CFR 177.1950 for food-contact safety.

PVDC Emulsion

PVDC Resin

PVDC Plastic Wrap

PVDC Plastic Wrap