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Perlite is a volcanic glass that, when heated, expands and forms a lightweight granular material. It is valued for its excellent thermal insulation properties, which can enhance energy efficiency in buildings. When combined in the right ratios with other materials, perlite provides an additional level of sound absorption, further enhancing the acoustics of a space.
what are mineral fiber ceiling tiles made of...
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In 1845, a surgeon named Dr. Horace Day made the first crude surgical tape by combining India rubber, pine gum, turpentine, litharge (a yellow lead oxide), and turpentine extract of cayenne pepper and applying that mixture to strips of fabric. It was the first “rubber-based” adhesive and Dr. Day used it in his practice as a surgical plaster. Larger scale manufacturing of similar medical tapes began in 1874 by Robert Wood Johnson and George Seaburg in East Orange, NJ. That company would soon become the Johnson & Johnson Company we know today. Later in 1921, Earle Dickson who bought cotton for Johnson & Johnson noticed that the surgical tape kept falling off his wife Josephine’s fingers after cutting them in the kitchen. He fixed a piece of gauze to some cloth backed tape and the first Band-Aid ® was invented. It took almost 75 years from Dr. Day’s first crude tape until the early 1920’s when the first industrial tape application appeared. The application was electrical tape (although the adhesive was more of a cohesive film than the electrical tape we know today) to prevent wires from shorting. The second major industrial tape application was a result of the rise of the American automobile in the 1920’s. Two-toned automobiles were becoming popular and automakers needed a way to produce clean, sharp paint lines while using the new automatic paint spray gun. They started using the surgical tape that was available but the paint wicked through the cloth backing and caused defective paint jobs. Richard Drew, an engineer at Minnesota Mining and Manufacturing (3M) happened to be at a local body shop testing their WetorDry® brand sandpaper in 1925 and he saw the workers struggling to get clean paint lines. He went back to his lab and created a 2-inch wide crimp backed paper tape that became the first “masking tape” for painting. Jumping ahead to 1942 and World War II, Johnson & Johnson developed duct tape to seal canisters and repair equipment for the military. The tape was a basically a polyethylene coated cloth tape with good “quick stick” properties that made it easy to use in the field for emergency repairs. The world never looked back and duct tape can be found in almost any home or toolbox.
- Semi-Conductive Water Blocking Tape A Comprehensive Guide
- In an era where safety is paramount, fire-resistant adhesive tapes have emerged as a crucial element in numerous industries, providing a reliable solution to mitigate fire hazards. These specialized tapes, designed with advanced materials and technologies, play a pivotal role in preventing the spread of fire and ensuring structural integrity during emergencies.
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Industrial Control Boxes
- PVC tape, also known as electrical tape or insulating tape, is an essential tool for anyone working with electrical wires. This type of tape is made from polyvinyl chloride (PVC), a synthetic plastic polymer that offers excellent insulation properties. In this article, we will discuss the benefits of using PVC tape for electrical wires and provide some tips on how to use it properly.
The 130C linerless rubber splicing tape is made from a special formulation of rubber that can withstand temperatures up to 130 degrees Celsius. This makes it ideal for use in high-temperature environments where other types of tape may fail. The tape is also highly flexible, making it easy to work with and apply to different surfaces. Its linerless design allows for easy application and removal, without leaving any residue behind.
- In addition to providing insulation, blue insulation tape can also be used for color-coding purposes. By using different colors of tape, it becomes easier to identify and organize different wires and cables, making maintenance and repairs more efficient. The bright blue color of this tape makes it stand out and easy to spot, even in busy and crowded work environments
blue insulation tape.- Green
Control boxes mounted on floors are essentially large-scale boxes specialized for industrial use. They are installed on the floor due to their relatively heavier weight. The heavy weight means that their portability is reduced and it is impractical to mount them on walls.

varnished cambric tape uses.


The Versatile Utility of Yellow Tape Electrical
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Marine:In the marine industry, butyl sealant tape is used to seal seams, joints, and gaps in boat and ship components, such as hulls, decks, and windows. The tape's water resistance and durability make it an excellent choice for maintaining the watertight integrity of marine vessels.



gray electrical tape.
