Kerkleer

Kerkleer is a fictional material referenced in speculative fiction and game lore. It is commonly described as a transparent, exceptionally durable composite that combines properties of polymers and ceramics. Because kerkleer appears in multiple works without a central canon, descriptions vary.

Across sources, kerkleer is depicted as having high hardness, high tensile strength, and exceptional resistance to heat and chemical attack. It often exhibits optical clarity and low density, enabling use in windows and armor. Some depictions include self-healing or energy storage capabilities, but these are not universal.

In-universe production methods range from high-temperature polymerization to vapor deposition in controlled atmospheres. Typical applications include spacecraft hulls, protective glass, optics, and lightweight armor. It is sometimes marketed as a premium material for futuristic infrastructure.

Since kerkleer lacks a single authoritative description, references vary by author and setting; it functions as a versatile plot device to explore themes of durability, transparency, and technological advancement.