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Fevicol is marketed as a white adhesive, described in company literature as a poly-synthetic resin.It is manufactured through the synthesis of formaldehyde and urea. [4]The product line includes various formulations designed for specific attributes such as bonding strength, impact resistance, curing time, sag resistance, shrinkage, versatility, fire resistance, shock and vibration resistance ...
The company was founded in 1959. [8] [9]In 2015, Pidilite acquired a 70% majority stake in Nina Waterproofing Systems for ₹ 100 crore (US$15.59 million). [10]In 2018, Pidilite acquired a 70% stake in CIPY Polyurethanes for ₹ 96 crore (US$14.04 million).
In construction, a building or structure is waterproofed with the use of membranes and coatings to protect contents and structural integrity. The waterproofing of the building envelope in construction specifications is listed under 07 - Thermal and Moisture Protection within MasterFormat 2004, by the Construction Specifications Institute, and includes roofing and waterproofing materials.
Waterproofing a structure from the exterior is the only method the U.S. International Building Code (IBC) recognizes as adequate to prevent structural damage caused by water intrusion. Waterproofing an existing basement begins with excavating to the bottom sides of the footings. Once excavated, the walls are then power washed and allowed to dry.
There are many solutions for dealing with dampness in existing buildings, the choice of which will largely be determined by the types of dampness that are affecting the building, e.g., rising damp, hygroscopic damp, condensation, penetrating damp, etc. In older buildings, damp stains on internal walls are usually due to external factors such as:
Sodium silicates are stable in neutral and alkaline solutions. In acidic solutions, the silicate ions react with hydrogen ions to form silicic acids, which tend to decompose into hydrated silicon dioxide gel. [citation needed] Heated to drive off the water, the result is a hard translucent substance called silica gel, widely used as a desiccant ...
Fixation is commonly achieved by treating the film or paper with a solution of thiosulfate salt. Popular salts are sodium thiosulfate—commonly called hypo—and ammonium thiosulfate—commonly used in modern rapid fixer formulae. [1] Fixation by thiosulfate involves these chemical reactions (X = halide, typically Br −): [2]
Jim'll Fix It is a British television series broadcast by the BBC, presented by Jimmy Savile and running for almost two decades, between May 1975 and July 1994. Devised by Bill Cotton, the show encouraged children to write a letter to Savile with a "wish" that would come true at the end of each episode, upon which the child would be granted a medal.