How to dehydrate polyurethane paint, how to clean dry polyurethane waterproof coating

Polyurethane waterproof coatings are divided into two components and two types of single components.

The two-component component is divided into two groups: A and B.

Component A is a giant urethane prepolymer containing diisocyanate group (-NOC) made of polyether resin and diisocyanate through polymerization reaction;

Part B is a mixture of adhesive bonding agent, accelerator, toughening agent, tackifier, antifungal agent, filler and thinner.

The one-component is made by using mixed polyether for dehydration, adding diisocyanate and various additives for epoxy modification.

Both two-component and one-component are asphalt-based environmentally friendly materials. Group A and Group B are mixed according to the proportion, stirred evenly, and can be used, the applicable period is 4-10 hours, and the curing principle is the reaction between isocyanate and hydroxyl functional groups. One-component polyurethane waterproofing coatings are more advanced:

1. One-component polyurethane waterproof coating, free of coal tar, petroleum resin, asphalt and organic solvents, no pollution to the human body and the environment, can be made into various colors, beautify the environment. Curing group: isocyanate, self-crosslinking curing under moisture or organic amine catalysis, pot life, 6-24 hours.

Storage stability, measured in years, with less pigment.

2. The construction of one-component polyurethane waterproof coating is convenient, which overcomes the shortcomings of two-component polyurethane waterproof coating that needs to be measured and stirred, and ensures the stable product quality and waterproof effect of the project.

The polyurethane system itself has strict water requirements, and chemical dehydration products can be used.

Meizhou Fuxi Chemical Co., Ltd. is a product of the first enterprise.

TI dehydrating agents can be used as solvents, fillers, pigments, hardeners and asphalt tar dehydrating agents in the preparation of polyurethane adhesives and coatings. It reacts with water to form carbon dioxide and organic amine compounds (toluenesulfonamide), carbon dioxide is removed by vacuum during the kneading process, toluenesulfonamide is a white solidified powdery amine substance, the chemical properties are very stable, the glue is equivalent to the role of filler after curing, the latter does not react with alkyl isocyanates or aryl isocyanates in general, and soluble in ordinary solvents. This cannot be used directly in paint formulations, and is generally used for pre-dewatering.

Hello, you can choose to add about 3% molecular sieve, which plays the role of dehydration to eliminate bubbles.

Do you mean dehydration after applying it?

How to clean up dry polyurethane waterproof coating! Hello morning, glad to answer for you. Cleansing oil + scrub detergent.

Gradually apply the cleansing oil on your hands, rub for 2 minutes, and then cooperate with the scrub for 2 minutes, rinse with water, and test the ink to decrease slightly, and continue to repeat and gradually decline. Defects: long hours.

Alcohol + pang. Pour some alcohol on your hands, scrub with soap for 3 minutes, then rinse with water, after testing, the traces of ink and land are reduced by half, and then repeated several times can be gradually eliminated. Defects:

Hurt hands and supplies are troublesome. Petrol + shampoo. Pour gasoline on the palms of your hands, then squeeze some shampoo, rub them together for 2 minutes, and then wash, after testing, the ink is reduced by 80%, but there is still an ink shadow, you can repeat it 2 times again, and the ink stains are eliminated.

Defects: Hurt hands, use. Banana water + laundry detergent.

Hope mine can help you! Do you have any other questions?