Heavy water, also known as deuterium oxide, is a form of water which contains a larger amount of the hydrogen isotope deuterium than is found in regular water. It is commonly used in nuclear reactors as a coolant and moderator. Common types of failure when rubber is exposed to heavy water include cracking, swelling, and hardening due to the presence of deuterium oxide. These failures can occur even at low temperatures, making it important to ensure that any rubber materials used in contact with heavy water are of a high quality and properly maintained.
Fluorosilicone o-rings are a hybrid of silicone and FKM resulting in great jet fuel resistance with high and low temperature performance. Also widely used in semiconductor Ashing equipment with strong resistance to oxygen plasma, FVMQ fluorosilicone o-rings also feature excellent flexibility, compression resistance, aging and sunlight resistance, and overall wide range of basic chemical resistance.
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