Vesitiivinen

Vesitiivinen is a Finnish term that translates to "waterproof" or "water-resistant" in English. It describes a material, product, or construction that prevents or significantly limits the passage of water. The degree of water resistance can vary, with fully waterproof items being impermeable to water under specific conditions, while water-resistant items may only withstand light exposure or brief immersion.

In the context of materials science and engineering, vesitiivinen properties are often achieved through the inherent nature of the material itself, such as the density of certain plastics or the structure of tightly woven fabrics. Alternatively, water resistance can be imparted through coatings, treatments, or membranes. Examples include waterproof clothing made with Gore-Tex or similar breathable waterproof fabrics, waterproof sealants used in construction, and waterproof coatings applied to electronic devices.

The determination of whether something is vesitiivinen often involves standardized testing methods to measure its performance against water penetration under different pressures and durations. This is crucial for applications where protection from moisture is essential, such as outdoor gear, construction materials, and protective packaging. The term is widely used in product descriptions and technical specifications in Finland.