Synthetic fused silica capillary has several fundamental characteristics that make it such a unique material:

• Very strong and flexible
• Abrasion resistant when externally coated
• Mirror smooth interior surface
• Inert surfaces and high purity
• Accurately drawn to a wide range of internal and external diameters
• Internal surface modification possible
• Dimensionally stable over long lengths
• Non-kinking
• Transparent from the deep UV to near IR (coating removed)
• Superior temperature resistance
• High dielectric strength, very high breakdown voltage
• Easily cleaved or cut
• Variety of external coatings available

Capillary is strong and abrasion resistant, but can be easily cleaved. It has inert, high purity surfaces, yet stable chemical modifications are routinely produced. It can be made to a wide range of sizes, yet each size can be held to exacting tolerances over long production lengths. Because of this impressive list of characteristics, synthetic fused silica capillary has claimed a unique position in the material sciences as an idea product for an expansive range of applications. A discussion on key applications follows below.

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