DEIONIZED WATER Resistant O-Rings and Seals

Deionized water is also known as demineralized water and is water that has had its mineral ions removed through a process of ion exchange. It is commonly used in laboratories, medical facilities, and industrial settings due to its low electrical conductivity. Deionized water is often used to clean surfaces, as a solvent in chemical processes, and as an ingredient in cosmetics and pharmaceuticals.

When exposed to deionized water, rubber materials can be susceptible to swelling, softening, and chemical attack. The swelling of the rubber material can occur due to the solvent properties of the deionized water, resulting in an increase in volume and a decrease in tensile strength. Softening of the rubber material can occur due to the leaching of plasticizers, resulting in a decrease in the rubber's hardness and a decrease in its ability to resist abrasion. Chemical attack of the rubber material can occur due to the presence of dissolved oxygen in the deionized water, which can cause degradation of the rubber material due to oxidation.