What problems should be paid attention to in the construction of blowing agent?

The normal use temperature of the polyurethane foam caulk tank is 5 40 , and the optimal use temperature is 18 25 . In the case of low temperature, it is recommended to place this product at a constant temperature of 25 30 for 30 minutes before using it to ensure its best performance. The temperature resistance of the cured foam ranges from -35 to 80.

Polyurethane foam caulk is a moisture-curing foam, which should be sprayed on a damp surface when used, the higher the humidity, the faster the cure. Uncured foam can be cleaned with a cleaning agent, while cured foam should be removed mechanically (sanding or cutting). The cured foam will turn yellow when exposed to ultraviolet light, and it is recommended to coat the cured foam surface with other materials (cement mortar, paint, etc.).

After the spray gun is used, when cleaning the replacement tank with a special cleaning agent, shake the new tank well (at least 20 times), remove the empty tank, and quickly replace the new tank to prevent the gun connection from curing. The flow control valve and trigger of the spray gun control the amount of foam flow. When the injection stops, the flow valve is closed in a clockwise direction.

Clean up the construction site first, and then shake the foaming agent evenly, of course, pay attention not to face people on the glue gun, the rest is a skilled worker, and the glue gun must be cleaned in time after spraying.

Pay attention to temperature and humidity, and shake before use.

First of all, pay attention to the ambient temperature and humidity, it can be used at 5-40 degrees Celsius normally, and if it is low, you can use the winter version of the blowing agent. The foaming agent needs to be shaken evenly before use, so that the ingredients in the foaming agent tank can be fully blended and the foaming effect is better.

It is mainly to fill the gaps, and the piggyback belt has some fixing effect. The window frame refers to the transitional structure between the wall and the window, which should be suitable for fixing on the wall and the installation and use of the window. The window frame is fixed to the wall, and the window is mounted on the window frame.

Some window frames have the effect of fixing and preventing the collapse of surrounding strong bodies. Because the material of the wall and the material of the window frame are both rigid materials. In particular, the wall belongs to civil engineering, and the accuracy is very poor, and it is difficult to make the form and the wall tightly combined.

In construction, it is usually necessary to fix the window frame on the wall as required, and then fill the gap between it. After the window frame is installed, the foaming agent is used to fill the gaps. The so-called foaming agent is a substance that makes the target substance porous, and it can be divided into three categories: chemical foaming agent, physical foaming agent and surfactant.

Construction foaming agent is a special polyurethane product that fills polyurethane prepolymer, foaming agent, catalyst and other components in a pressure-resistant aerosol can. It has strong adhesion properties, and the resulting foam has a little strength after drying. The piggyback strap has some fixation when filling the gaps.

The thermal insulation and sound insulation effect are also better than mortar. It is very effective when used for sealing and filling. It is worth noting that because the construction foaming agent has a binding and fixing effect.

Some "roadside" workers cut corners and fix window frames directly with foaming agents. In this way of installation, the window frame will fall off when it is stressed. Therefore, in some occasions, we must control the quality.

The blowing agent can only be used if the window frame is fixed without any loosening.

It is also known as foaming agent and foaming agent. It is a substance that can promote the formation of foam and form a closed-cell or bicellular structure. According to the role of the substance, there are two types of physical foaming agents and chemical foaming agents.

Foaming agents can be surfactants, such as soaps, detergents, natural substances such as proteins, vegetable gums, volatile liquids such as ethanol, water, substances that can generate inert gases such as azo compounds, nitroso compounds, and gases that are insoluble in water such as air, nitrogen, carbon dioxide, hydrogen, etc. It is used for foam fire extinguishing, foam plastic, foam rubber, sponge rubber, foam concrete, foam glass, etc. Foaming agents are also required for the processing of pesticide water-dispersible granules and tablets.

Foaming agent mainly refers to the foaming agent in the liquid, and sometimes also refers to the foaming agent, which is used for mineral flotation, such as pine oil, phenols, alcohols, etc. Substances that can make plastics, rubber and other polymers form a cell structure are also called blowing agents.

It is formed by polyurethane material and cement foam, which requires a professional team to construct.

Place the cement on the ground with a bag, and dry it in the sun.

Blowing agent is a common chemical product that is widely used in various fields. When using blowing agents, it is first necessary to select the appropriate type and specification according to the specific application. Before use, read the product manual carefully to understand the usage method and safety precautions.

In general, the use of blowing agent includes the following steps:1Preparation:

Ensure that the operating environment is well ventilated and wear appropriate personal protective equipment such as gloves, eye protection, etc. 2.Prepare items:

Prepare the materials that need to be used, such as blowing agents, thinners, stirring tools, etc. 3.Mixture preparation:

Mix the blowing agent and diluent in the ratio in the product instructions. Pay attention to the ratio requirements of good forest oak to ensure the foaming effect and quality. 4.

Stir well: Use a stirring tool to stir the mixture well, ensuring that the blowing agent and diluent are completely integrated. 5.

Construction application: Pour the mixture into the appropriate container or construction equipment, and carry out spraying, brushing, injection and other operations as needed. Note that the construction speed should be moderate to avoid uneven foaming effect caused by too fast or too slow.

6.Foaming observation: Observe the effect of the foaming agent for a period of time after construction.

Adjustments can be made as needed, such as increasing or decreasing the amount of blowing agent, to achieve the desired foaming effect. 7.Cleaning & Storage:

After use, clean the construction tools and containers in time. If there is any leftover mixture, store according to the product instructions, paying attention to the storage conditions and expiration date.