The formula of 803 glue, which is better, 801 glue or 803 glue

803 coating is a water-soluble coating made of high-speed dispersion and grinding after the reaction of polyethylene and formaldehyde to form hemiacetal, and then using aminoated construction glue (commonly known as 801 construction glue) as the base material, adding pigments, fillers, additives and other components.

First, the formula of the coating.

803 coating is to add fillers, pigments, additives and a small amount of additives to 801 construction glue, mixed evenly, its basic formula (weight ratio) is: 801 construction glue: 100 titanium dioxide:

4 Zinc Barium White: 10 Calcium Carbonate: 30 Talc:

13 Additives: 8-10 Dispersant: appropriate amount of urea:

Appropriate amount of water: Appropriate amount.

Second, 803 paint production process.

There are no special requirements for the preparation process of 803 coating, which can be used for ball grinding paste, three-roller grinding paste, high-speed dispersion and sanding.

1. Mix 801 construction glue with fillers, additives and additives with a high-speed disperser.

2. After grinding with a grinder, 803 paint is obtained by matching and mixing colors with a low-speed mixer.

Summary. 801 glue is a kind of construction glue, which is prepared by polyvinyl alcohol and formaldehyde through polycondensation reaction in acidic medium, and then aminoation, and contains unreacted formaldehyde in the preparation process. Due to the great harm of 801 glue, some provinces and cities in China have expressly banned the use of 801 glue in local regulations.

803 glue is a water-soluble glue made by reacting polyethylene with formaldehyde to form hemiacetal, and then using aminoated construction glue (commonly known as 801 construction glue) as the base material, adding pigments, fillers, additives and other components, and dispersing and grinding at high speed.

801 glue is a kind of construction glue, which is prepared by polyvinyl alcohol and formaldehyde in an acidic medium through polycondensation reaction, and then amination, and contains unreacted formaldehyde in the preparation process. Due to the great harm of 801 glue, some provinces and cities in China have expressly prohibited the use of 801 glue spike landscape in local regulations. 803 glue is a water-soluble glue made of polyethylene and formaldehyde reaction to form hemiacetal, and then with aminoated construction glue (commonly known as 801 construction glue) as the base material, adding pigments, fillers, ear rental additives and other components, and dispersing and grinding at high speed.

It depends on the situation in which it is used.

What is 802 glue used for, 802 construction glue is used as a sizing agent for textile fibers and non-woven fabrics, as well as a binder for stationery and educational supplies. 802 construction rubber cooked rubber powder is mainly used to increase viscosity, water-based workers are easy to build, prevent cracking of the base layer and increase adhesion and other functions. Hope it helps.

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803 construction glue is a commonly used adhesive that is mainly used for bonding in construction, furniture, automobiles and other fields. The following points need to be paid attention to when using this glue:

1.Before use, the bonded surface should be cleaned to remove oil, dust and other impurities to ensure that the surface is dry.

2.The glue is squeezed onto the surface to be bonded, typically at a dosage of 3-5 ml per square meter.

3.The two surfaces to be bonded are tightly bonded and pressed firmly to ensure that the glue is evenly distributed.

4.After the adhesion is received and matched, you need to wait for a certain amount of time for the glue to dry and solidify. It is generally recommended to wait for more than 24 hours, and the specific time depends on the actual situation of the glue.

5.During use, care should be taken to avoid glue contact with ** and eyes, and if you are not careful, you should immediately rinse with water.

6.After use, the glue should be tightly covered and avoid storage in high temperature, humidity and other environments.

Summary. Hello, polyvinyl alcohol, water, formaldehyde, urea appropriate amount of hydrochloric acid, sodium hydroxide.

Production process: add water to the reaction pot, raise the temperature to 70 °C, then slowly add polyvinyl alcohol, and raise the temperature to 90 95 °C to completely dissolve the polyvinyl alcohol.

The polyvinyl alcohol solution was cooled to 80 85 °C, hydrochloric acid was added dropwise, stirred for another 20 minutes, and formaldehyde was added for condensation, which took about 60 minutes.

After cooling and adjusting the pH value, urea is added for aminoation treatment, and after passing the sampling inspection, the pH is adjusted to neutral, cooled by 40 to 50 °C, and discharged.

How is 801 glue formulated?

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Hello, polyvinyl alcohol, water, formaldehyde, urea appropriate amount of hydrochloric acid, sodium hydroxide production process: add water to the reaction pot, raise the temperature to 70 °C, and then slowly add polyvinyl alcohol, and raise the temperature to 90 95 °C, so that the polyvinyl alcohol is completely dissolved. The polyvinyl alcohol solution is cooled to 80 85 °C, hydrochloric acid is added dropwise, stirred for another 20 minutes, and formaldehyde is added to the cultivator book for condensation, which takes about 60 minutes.

After cooling and adjusting the pH value, urea is added for amination, and after passing the sampling inspection, the pH is adjusted to neutral, and the macro is cooled by 40 to 50 °C, and the material is discharged.

Hope it helps! 

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How to prepare 801 glue method is as follows: production raw materials 801 glue production raw materials are: polyvinyl alcohol, water, formaldehyde, urea, hydrochloric acid and sodium hydroxide.

The production process is to add water to a 1000 liter reactor, heat it to 70, start the mixer, and then slowly add polyvinyl alcohol and heat it up to 90-95 to completely dissolve the polyvinyl alcohol. Let the polyvinyl alcohol cooling solution cool to 80-85, add hydrochloric acid in a thin stream under continued stirring, stir for 20 minutes, and then add formaldehyde for condensation reaction, the time is controlled at about 60 minutes. After reducing the temperature and adjusting the pH value, the urea is used for amination treatment, and after passing the sampling inspection, the pH value is adjusted to neutral, and then cooled to 45-50 discharge, which is 801 construction glue.

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