canyon components logo

CAUSTIC SODA Chemical compatibility with O-rings, rubbers, & plastics

Caustic soda, also known as sodium hydroxide, lye, or NaOH, is a white, highly alkaline solid widely used in soap manufacturing, chemical processing, water treatment, and laboratory applications. This strong base readily dissolves in water to form a highly caustic solution. In chemical compatibility evaluations, sodium hydroxide exposure must be carefully reviewed for rubber O-rings and gaskets, as concentrated alkaline solutions can cause swelling, hardening, or degradation in certain rubber materials. Because caustic soda is highly corrosive and can cause severe burns and respiratory irritation, proper storage, ventilation, PPE, and material selection are critical to ensure safe operation and reliable performance of O-rings, rubber seals, and gaskets.

header image

Need CAUSTIC SODA resistant plastics, O-rings, rubbers, and seals? Get in touch now!


Canyon Components strives to meet all customer service requests. If you need something that isn't listed below, feel free to contact a Canyon Components product and application consultant and let our knowledgeable staff help you design the perfect part for your needs.

Paint covered o-ring
MaterialPerformanceGet a quote

Get a quote now!

Metal Piston

Groove Design References

Learn More

Coatings, Packaging, & Other Services

Learn More

Custom Parts & Custom O-rings

Learn More