Detailed stone temporary, permanent seal protection agent

Stone sealed protective agent (protective agent) refers to those chemicals that can be painted on the surface of the stone and form a layer of film to prevent water, oil, and dirt from entering the interior of the stone to protect the decorative effect of the stone. There are water-soluble, organic solvent type, solid type. And this type of surface protective agent is divided into temporary type and durable type.

Temporary sealing agent is actually attached to a layer of film on the surface of the stone. The contact between the film and the stone is not strong and can be easily removed. Commonly used on the market is pressure g, polyethylene, PVC. , Styrene, resin and other chemical components of the composition of the water-based products, these products are not actually dedicated to the stone. When the special protective agent for early stone materials did not appear, some people used waterproof paint on the roof of the building as a protective agent for the stone and could also obtain certain protective effects. Historically, on the ancient Rhine River in Europe, due to year-round dampness, stones, lichens, moss, black skin, and other stone “pathological changes” have appeared at the bottom of stone buildings along the coast. In the past two thousand years ago, The working people tested the stone seal type protective agent, which was diluted with pine sap and coated on the stone, and it was waterproofed several times to overcome the stone disease. In modern times there was wax, which became the most used stone early sealing material.

There is no record of stone protection agent in ancient China. This is closely related to the concept and construction practice of stone used in ancient Chinese architecture. The traditional Chinese architecture is mostly brick, brick, and tile, and stone is only used on some foundations, steps, and columns. And then there is the concept of stone as a work of art, such as sculptures, decorations, religious products, etc. There are very few buildings built entirely of stone in China, which made it a house of brick and wooden structure of Qin Shihuang. The fire is gone. In Europe, the construction of buildings entirely made of stone abounds. The Leaning Tower of Pisa is a complete set of stone buildings. In order to protect these stone buildings, Europe first proposed modern stone protection concepts and products. Modern chemical industry has developed a series of protective agents for the surface type of stone.

Durable stone protectants generally refer to those that cannot be easily removed after being coated on stone materials. They are often made by dissolving some durable and stable materials with solvents, such as **, a combination of acrylic acid and organic silicon, and fluoride. Since the solvent volatilizes after construction, the remaining material is particularly stable in nature and penetrates into the stone, so it is not easy to remove and wear out. (Editor's note: such as green angel HB-S502 film-forming stone curing agent is a kind of silicone film durable stone protective agent, the film does not fall off, no yellowing, strong acid and alkali, anti-ultraviolet aging function .

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