Knowledge

The main ingredient in epoxy sealants is epoxy resin, and the combined content of the A and B components in the sealant formula exceeds 50%. Given that epoxy resin is the primary component, discoloration is inevitable and is only a matter of time. The materials contain chromophoric groups, such as the aromatic ether and benzene ring structures in epoxy resins, as well as the conjugated double bonds in unsaturated resins. These structures can form colored substances when exposed to UV radiation or oxygen oxidation, leading to yellowing and powdering of the material.

Polyurea flooring enhances the strengths of epoxy flooring, improving both its physical and construction properties. Unique in design and customizable in color, polyurea flooring offers excellent wear resistance, non-slip surfaces, and vehicular traffic endurance, making it easy to clean. This makes it highly suitable for use in industries such as the oil industry, chemical plants, electronics, pharmaceuticals, food, machinery, and offices. Specifically, polyaspartic polyurea, representing the third generation of polyurea products, outperforms standard polyurea flooring in wear and scratch resistance, weather durability, color stability, and crack resistance, even in outdoor settings. Its simple, efficient, and rapid application makes it an optimal choice for high-end, solvent-free flooring solutions.

High-content solid, low-viscosity refers to a material with high solid content and low viscosity. Polyaspartic resin is a typical example of this kind of material. High solid content means fewer volatile substances in the material, resulting in lower VOC (Volatile Organic Compounds) emissions, which contributes to the creation of environmentally friendly products. Low viscosity enhances the workability of the material, facilitating easier application. Additionally, resins with lower viscosity require fewer diluents, further reducing VOC emissions.

Cold storage units are categorized into low-temperature, medium-temperature, high-temperature, quick-freeze, and controlled atmosphere types. The primary market is low-temperature storage, accounting for 72%, primarily used for food storage at -18 to -25°C, which is ideal for preserving meat and vaccines. The unique environment of cold storage units demands high-quality flooring materials that can withstand prolonged low temperatures and endure the impact and pressure of forklifts during loading and unloading. Therefore, the materials must exhibit excellent low-temperature resistance and impact durability.

The demand for environmentally friendly coatings is increasing, along with the need for anti-corrosive coatings. Increasing the solid content of anti-corrosive coatings to reduce VOC emissions has become a key priority in the coatings industry. Polyaspartic Resin, used in anti-corrosive coatings, offers significant advantages in coating engineering machinery and specialized containers. Its features include high solid content, low viscosity, excellent weather resistance, rapid drying without the need for baking, and energy efficiency. This not only conserves energy and protects the environment, but also provides exceptional durability. ISO 12944-2018, the international standard for anti-corrosive coatings on steel structures, now includes Polyaspartic(polyaspartic ester) coatings, alongside polysiloxane and fluoropolymer coatings, suitable for C5 and higher environments.

Ways to Extend the Pot Life of Polyaspartic Polyurea: 1.Carefully add diluents. 2.Partially replace fast-drying resins such as F420 with slower-drying ones like F520. 3.Avoid substances such as water, hydroxyl, acid, and base in the coating system, as they can catalyze polyaspartic polyurea. 4.Adding molecular sieves is a proven and effective method. 5.Replace certain fast-curing HDI trimer with slower-curing polyurethane prepolymers. 6.Heat pigment fillers to remove water. 7.Choose different pigment fillers.