What is 808 glue and what does 801 glue do

808 glue, also known as instant super glue, has good bonding strength for various metals and most non-metals.

The chemical composition of the instant glue in an aqueous environment. When the moisture in the instant glue disappears, the polymers in the instant glue rely on the mutual tension to tightly bind the two objects together. In the use of instant glue, too much glue will make the polymers in the glue crowd together; The polymers do not produce good tensile force between them.

Glue is needed in more and more places, and different glues are suitable for different ranges. When it comes to construction, there are also glues that are specifically suitable, e.g. etc. Today, I will take you to understand what 801 glue does and how to use 801 correctly.

If 801 is used inappropriately, it can cause harm.

1. What is the function of 801 glue?

1. We add 801 glue to the blending of cement mortar and concrete, which can greatly strengthen the adhesion between concrete and cement mortar, and play a role in the adhesion between the base layer and the coating. When we decorate our own home, 801 glue combined with other mixtures will become paint putty, and when decorating the wall, the paint putty can be used as a base treatment before painting. If the adhesion with the wall and the material is not enough, it is easy to have quality problems, and 801 glue, with strong adhesion, can solve this problem well.

2. Some companies also use 801 glue on textile fibers, such as sizing agent when sizing textile cloths, and we can use 801 glue to fill in silver. It can also be used in places where literature and educational supplies need to be bonded.

Second, 801 glue needs to be paid attention to when using.

The raw materials of glue are polyvinyl alcohol and formaldehyde, and we all know that formaldehyde is a small harm when it is absorbed into the human body. In construction, 801 is used for construction, and after use, it will volatilize and then release formaldehyde. The use of 801 has been banned in many places by national regulations, and it can be avoided if it is not necessary.

2. 801 glue must be used, in order to prevent the human body from absorbing formaldehyde, we must take preventive measures. The construction workers wear protective clothing before construction, so that the material does not get contaminated on their bodies, and then wear masks to prevent the nose from inhaling harmful gases. During construction, you must pay attention to maintaining ventilation and ventilation, and stop working immediately if you feel uncomfortable.

3. When using 801, a Qi Yu must be used in strict accordance with its proportion, too much or too little will affect the effect, and professionals should be asked to operate.

Summary: Now we already know what the function of Fengzai pure 801 glue is, and also understand its harmfulness, although it is harmful, but in terms of construction, it is still highly valued.

801 glue.

It is mainly used for the preparation of paint putty.

or add to cement mortar.

or concrete, in order to enhance the adhesive strength of cement mortar or concrete, and play a role in the bonding transition between the base layer and the coating. In home decoration, 801 construction glue + white cement.

The mixture of talcum powder, called 801 paint putty, is used for the base treatment before coating in wall decoration projects. The quality of the coating project depends on the quality of putty, paint and construction. Relevant research shows that 60% of coating engineering failures are caused by putty quality, not paint Construction glue is currently in the process of elimination, and alternative and safer adhesives have gradually appeared on the market.

Since the state is not allowed to produce and sell environmentally friendly paints and coatings after 2008, in order to be able to pass the inspection, many businesses have forged the so-called inspection reports, and some 801 glue is simply marked directly on the barrel"Environmentally friendly"The words are placed at the door of the store, which is a deceptive behavior, because if the 801 glue is to really meet the standard, its production raw materials and processes are completely different from the original 801, and its ** will be more expensive.

The main use of 801 glue is to add to materials such as water-cemented mortar, concrete, paint putty, etc., to enhance their bond strength. When using 801 glue, it is necessary to do a good job of protection.

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.

If my answer is helpful to you, please give a thumbs up (comment in the lower left corner), look forward to your praise brother, your efforts are very important to me, and your support is also the motivation for my progress. Finally, I wish you good health and a happy mood!

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.