ProTherm® 4303 CPVC by Westlake Chemical is a rigid extrusion CPVC powder compound. Designed for interior pipe applications with an O.D. range of 1/2 to 8 inches requiring high heat deflection... view more

ProTherm® 4305 CPVC by Westlake Chemical is a chlorinated polyvinyl chloride (CPVC) grade. Offers high heat distortion temperature, excellent chemical resistance, low flame and low smoke generation... view more

ProTherm® 4351 by Westlake Chemical is a chlorinated polyvinyl chloride (CPVC) grade. Offers high deflection temperature, excellent chemical resistance, excellent processability, excellent stability... view more

ProTherm® 4353 CPVC by Westlake Chemical is a rigid CPVC powder compound for interior pipe applications. Designed for the extrusion of pipes with large diameter and heavy wall industrial pipe... view more

ProTherm® 4526 CPVC by Westlake Chemical is a rigid injection molding CPVC for interior fittings. Suggested for potable water and chemical transfer systems especially where high resistance and/or... view more