The spelling of the word "pitch plaster" can be confusing due to the irregularities of the English language. The word "pitch" is pronounced as /pɪtʃ/ and refers to a dark and sticky substance. The word "plaster" is pronounced as /ˈplæstər/ and refers to a material used to cover walls. Together, "pitch plaster" is pronounced as /pɪtʃ ˈplæstər/ and refers to a mixture of pitch and plaster used for waterproofing. While the spelling may not be intuitive, the pronunciation can be learned with the help of IPA phonetic transcription.
Pitch plaster is a type of adhesive material that is commonly used in construction and building projects. It is composed of a mixture of pitch, which is a dark and sticky substance derived from the distillation of tar or petroleum, and other additives such as lime or sand. It has a thick, sticky consistency that allows it to adhere to various surfaces.
The primary purpose of pitch plaster is to provide a durable and waterproof seal, making it ideal for applications where moisture resistance is necessary. It is often used in roofing projects to create a watertight barrier, preventing leaks and water damage. Additionally, it is also employed in masonry work to fill cracks and gaps between bricks or stones, enhancing the structural integrity of the building.
Pitch plaster is typically applied to surfaces by heating it until it becomes pliable, then spreading it evenly using a trowel or brush. As it cools and hardens, it forms a strong bond with the underlying material. The dark color of pitch plaster also provides an aesthetic appeal to certain architectural styles, adding a rustic or vintage look.
Due to its waterproof properties, pitch plaster is exceptionally durable and long-lasting. However, it can be susceptible to degradation and cracking over time, especially in extreme weather conditions or with repeated exposure to sunlight. Therefore, regular maintenance and inspection are crucial to ensure the continued effectiveness of pitch plaster in protecting and sealing various structures.
Emplastrum picis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "pitch plaster" is a compound term that combines the words "pitch" and "plaster".
1. "Pitch": The term "pitch" comes from Middle English "pich" and Old English "pic". It can be traced back to the Latin word "picem" meaning "pitch" or "tar". The Latin word itself is believed to have originated from the Greek word "pissos". Pitch refers to a viscous and sticky substance obtained from the distillation of organic materials, often used as a sealant, adhesive, or coating.
2. "Plaster": The word "plaster" comes from Old English "plæstrian" which means "to daub" or "to smear". It can be traced back to the Latin word "emplastrum" meaning "plaster" or "sticky substance".