Shanghai Kain Chemical: Classification of sealing curing agents

Concrete sealing and curing agentAs the current market The most popular floor material in the world, it is widely used in the field of floor construction. The floor treated with curing agent has excellent hardness and wear resistance, and the floor is sand-proof, dust-proof, waterproof and anti-corrosion. The construction process is simple, subsequent maintenance is convenient, and it has a long semi-permanent life. .

Before introducing the classification of concrete sealing and curing agents, Kain ChemicalLet me first tell you about the origin and development of curing agents, concrete Sealing curing agent first originated in Germany during World War II. It was mainly used on airport runways to improve the hardness and wear resistance of airports. After World War II, it was modified and invented by a German scientist. It was then converted from military use to civilian use and is widely used. After decades of development, various construction fields such as floors have gradually evolved into colorless, non-toxic, non-combustible and highly permeable environmentally friendly floor materials that are now popular among the public.

Concrete hardener has three classification methods : The first is classification by ingredients, the second is classification by form, and the third is classification by function.

Ingredient classification

Concrete sealing and curing agentAccording to the ingredients It is divided into: sodium-based concrete sealing and curing agent, potassium-based concrete sealing and curing agent, and lithium-based concrete sealing and curing agent. Lithium-based concrete sealing and curing agent is the latest generation sealing and curing agent. Because it contains the smallest cations except hydrogen, the polysilicate synthesized by chemical reaction with concrete has the smallest radius, and its performance is far better than that of potassium-based sodium-based concrete. Sealing and curing agents, potassium-based sodium-based concrete sealing and curing agents are prone to whitening due to alkali precipitation on the ground after use.

morphological classification

Concrete sealing and curing agents can be divided into powder concrete sealing and curing agents and liquid concrete sealing and curing agents according to their forms. Most of the common potassium-based, sodium-based, and lithium-based curing agents on the market are liquid curing agents. The main components are water and polysilicone compounds. They are non-toxic, tasteless, water-based environmentally friendly materials, and comply withVOC environmental protection requirements. The liquid curing agent can efficiently penetrate into the concrete and react chemically with calcium and magnesium ions in the concrete to form a hard crystalline substance without producing toxic gases. Powdered curing agent is toxic because it contains magnesium hexafluorosilicate, which can react with chemicals in concrete to produce toxic and irritating gases hydrogen fluoride and silicon tetrafluoride.

Functional classification

Concrete sealing and curing agents can be divided into: true colorConcrete sealing and curing agents, Colored concrete sealing and curing agent. During construction, the natural concrete sealing and curing agent is first cured on the ground and then dyed. Because the color is not penetrating and only floats on the surface of the concrete, it is easy to fade. The colored concrete sealing and curing agent uses the most advanced lithium-based nanotechnology, which combines nano-silica, nano-lithium and high-penetrating color paste, and uses additives to form a stable nano-lithium-based liquid color curing agent. The resulting color curing The floor color is long-lasting and does not fade, and the color is full and bright.