What is the temperature resistance of polyurethane paint?

Question 1: What is the temperature resistance of polyurethane varnish? General polyurethane has insufficient high temperature resistance. Generally, polyurethane begins to lose strength at 80℃ ~ 90℃. If the temperature is increased again, it will be destroyed and the polymer will begin to decompose at 220℃. There are studies on temperature-resistant polyurethane abroad, but all of them are patents, and there are few domestic studies. Polyurethane is a kind of polymer with repeating structural units of NHCOO in its main chain. Because it contains strong polar carbamate groups and is insoluble in nonpolar groups, it has good oil resistance, toughness, wear resistance, aging resistance and adhesion. It is not resistant to hydrolysis in high temperature and alkaline medium.

Polyurethane is generally slightly toxic, but it cannot be eaten. However, if toxic flame retardants or other non-reactive toxic substances are added to the raw materials used, the foam will also be toxic, so be careful when touching it.

Question 2: What is the heat-resistant temperature of high-temperature resistant polyurethane paint? The long-term use temperature of polyester type is below 80℃, and the short-term use temperature can reach 120.

Question 3: What is the temperature resistance of polyurethane varnish? Which model are you talking about?

Polyurethane varnish is suitable for decorative protection of wood, furniture and vegetarian products. Containing organic solvents such as cyclohexanone and xylene, it is a flammable liquid and contains a small amount of free TDI monomer, which has certain toxicity. Therefore, the construction site should respect the safe operation procedures of painting operation and take measures such as fire prevention, anti-law, anti-static and anti-elements.

Question 4: What is the maximum temperature that polyurethane sub-paint can withstand? Polyurethane responsibility paint not only has good protective performance, but also has excellent decoration. Polyurethane paint has strong adhesion, good heat resistance, cold resistance and water resistance, and can be used at -40℃ ~ 120℃. The heat resistance and flexibility can be adjusted to some extent by coating composition and process.

Question 5: What is the heat-resistant temperature of the paint? Five points cannot be generalized-what is the heat-resistant temperature of the coating?

1. epoxy paint-the heat-resistant temperature shall not be higher than 120 degrees in air and 80 degrees in hot water.

2. Polyurethane paint-120

3. Acrylic Polyurethane-150

4. Fluorocarbon coating -200.

5 High-temperature resistant paint-different tree species and corresponding pigments and fillers can be selected according to different requirements to meet the requirements of high temperature resistance, but the highest oily high-temperature resistant paint is 700 degrees.

Welcome to discuss, Wei Heng, Shijiazhuang.

Question 6: Is the polyurethane paint resistant to high temperature Advantages: 1, excellent wear resistance 2, excellent chemical resistance and oil resistance 3, strong adhesion 4, low-temperature curing performance 5, high decoration 6, high-temperature and low-temperature resistance. Disadvantages: 1, non-toxic needs to be based on the basement membrane. Once the basement membrane is not prepared or destroyed, it will stimulate the high pollution of the coating itself. 2. In any case, paint is always very different from wallpaper and other products in aesthetic performance. 3. It takes a period of ventilation and harmful gas emission after the transformation. Personally, I suggest not to use paint as the main decoration of long-term living space. For example, in the bedroom, it is recommended to buy wallpaper instead of room paint. Taobao's Philippine space sells cheap PVC wallpaper. I suggest you have a look. I hope I can help you. Remember to adopt

Question 7: What is the temperature resistance of aliphatic polyurethane topcoat? The temperature resistance of general polyurethane topcoat is about -40~ 120℃. The main feature of aliphatic polyurethane is not temperature resistance, but better yellowing resistance (ultraviolet resistance) and almost no yellowing.

Question 8: Is polyurethane wear-resistant insulating paint resistant to high temperature? What's the high temperature? Polyurethane varnish film is plump and bright, hard and wear-resistant, with strong adhesion, and has the characteristics of moisture resistance, moisture resistance and chemical corrosion resistance.

Specifically, the formula of polyurethane insulating paint is 155℃-300℃

Question 9: What is the heat resistance limit of automobile paint? 20 minutes. Various paints have different heat resistance limits. Automobile paint belongs to epoxy resin. The heat-resistant temperature is 120 degrees in air and 80 degrees in hot water. The following is the heat resistance of various coatings.

Epoxy paint-the heat-resistant temperature is not higher than 120 degrees in air and 80 degrees in hot water.

Polyurethane paint-120

Acrylic polyurethane-150

Fluorocarbon coating -200.

5. High-temperature resistant paint-different tree species and corresponding pigments and fillers can be selected according to different requirements to meet the requirements of temperature resistance, but the oily high-temperature resistant paint is up to 700 degrees.

Question 10: Is the polyurethane paint resistant to high temperature? Polyurethane paint has strong adhesion, good heat resistance, cold resistance and water resistance, and can be used at -40℃ ~ 120℃. The heat resistance and flexibility can be adjusted to some extent by coating composition and process. Rich brand polyurethane paint gives you the most professional answer! !