How to get rid of yellowing styrofoam after drying?

Dry styrofoam.

It can be cut off directly with a tool, which is harder than the material equivalent to the door; If the styrofoam is already very dry, cover it with a hot water cloth for a while and wipe it clean.

If you get it on your clothes and need to remove it, there are a few steps as follows:

1. Prepare the required materials and utensils: basins, knives, laundry detergent.

Penknife; <>

2. Use a knife to gently scrape off the dried styrofoam on the clothes;

3. Pour the water into the basin, and then soak the place with styrofoam into the water;

4. Then pour an appropriate amount of laundry detergent into the water and soak for about 10 minutes;

5. Repeatedly scrub the glue with your hands (don't use too much force); It can be easily rubbed off;

6. Finally, rinse it with clean water a few times, and you can wash the place with styrofoam very clean.

How to clean styrofoam:

1.For the styrofoam that has dried, you can only use mechanical methods (generally borrowing a utility knife can be scraped relatively cleanly, and the surface will be yellow and ugly after a long time), if you scrape not thoroughly enough, you can choose to scrape the sand lightly.

2.For freshly applied foam caulk (uncured styrofoam), wash with a detergent.

It is a bit difficult to clean the styrofoam on the wooden door, because the polyurethane styrofoam is very sticky and has a very large adhesion, and there is no very effective way to remove the styrofoam. However, a suggestion, if the styrofoam sticks, you should be careful not to flatten it, if you press it, it will make the styrofoam bond more tightly, you should let it cure naturally, so that the contact surface is not large, and you can directly pick it off or rub it off when it dries.

Soak in hot water for 20-40 minutes, sprinkle baking soda and rub it slowly.

The method of removing the dried styrofoam is as follows:

1. You can use liquor of about 60 degrees, or use alcohol and water to mix, cover the dry foam glue, wait for about half an hour, and then scrub it with water, and then rinse it with water.

2. In addition, you can also go to the supermarket to buy a cleaning agent for cleaning foam glue, and the cleaning effect is also very good.

3. You can also use toothpaste or wind oil essence to clean up the dried foam glue, the effect is also very good, and it is relatively simple.

4. In addition, if it is the foam glue remaining on the door, you can directly scald it with boiling water, or use a hair dryer to blow on the dry foam glue, and after a period of time, you can use a knife to remove the foam glue.

Precautions for using styrofoam.

The blowing agent is a moisture-curing foam, which should be sprayed on a damp surface when used, and the higher the humidity, the faster the curing. 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, so it is recommended to coat the cured foam surface with other materials (cement mortar, paint, etc.).

After using the spray gun, clean it immediately with a special cleaning agent.

The uncured foam is sticky to ** and clothes, do not touch ** and clothing styrofoam can has a pressure of 5-6kg cm2 (25), the temperature should not exceed 50 during storage and transportation, in case of tank explosion, hand grinding styrofoam jar should avoid direct sunlight, and it is strictly forbidden for children to touch; Empty cans after use, especially those that are partially used but have not been used up, should not be thrown away, and it is forbidden to burn or puncture empty cans.

The styrofoam is cleaned with a special styrofoam cleaning agent, acetone, and can be washed off with a large amount of water while it is not cured.

1. Use a special styrofoam cleaning agent

Buy a cleaning agent that specializes in cleaning styrofoam, its ingredients are able to dissolve styrofoam and can help remove styrofoam.

2. Acetone cleaning

Acetone and styrofoam are both organic substances, the same polarity, according to the principle of similar compatibility can achieve the effect of cleaning, but it is not recommended for non-professionals to use.

3. Clean with a large amount of water while it is not cured

Uncured styrofoam also has strong adhesion, so if it is accidentally stained, it should be cleaned with plenty of water in time.

Styrofoam

Styrofoam is the polyurethane prepolymer, foaming agent, catalyst, cross-linking agent, etc. filled into the high-pressure resistant iron can, and filled with propane and other gases, it is divided into two types: gun type and tube type, the gun type is required to use a special polyurethane foam gun, the tube type is equipped with a disposable hose, styrofoam as the name suggests is a kind of glue with foaming characteristics and adhesive characteristics.

The temperature of styrofoam should not exceed 50 during storage and transportation, direct sunlight should be avoided, and it is strictly forbidden for children to touch, and the empty cans after use, especially the styrofoam cans that have not been used up partially should not be thrown away, and it is forbidden to burn or puncture the empty cans. Keep away from open flames and do not come into contact with flammable and explosive materials. In case the foam gets in contact with your eyes, rinse with water before going to the hospital. If touched**, rinse with water and soap.

Styrofoam is the first material in the world, which is widely used in construction, home improvement, automobile maintenance and other industries. Although styrofoam has good adhesion and curing properties, sometimes it will accidentally get it on clothes or floors, or even stick to ** during use, which needs to be cleaned up. This article will show you how to wash off styrofoam.

Preparation for cleaning styrofoam.

Before cleaning styrofoam, you need to prepare the following tools and items:

Rubber gloves. Safety glasses or face shields.

Pincers. Lime dilution.

Dissolving agents (acetate, ketones, liquefied gas, etc.).

Detergent and cleaning cloth (needed to clean the floor).

How to clean styrofoam.

Cleaning of styrofoam**.

If the styrofoam is glued to the **, it needs to be treated urgently. First, don't use water for cleaning, as this may harden the styrofoam, making it harder to remove. Put the rubber gloves on and gently peel off the styrofoam with pliers, if it is very difficult to remove, you can use a solvent to clean it, be careful not to let the solvent come into contact with the eyes or mouth.

Can be rinsed with water** and finally used some skin cream to keep ** moist.

Wash styrofoam clothes and shoes.

When getting styrofoam onto clothes or shoes, don't rush to wash it with water, as water will speed up the hardening of styrofoam. Some solvents such as acetate or ketone dissolvers can be used. First, squeeze out the styrofoam outward, then apply the solvent to the styrofoam, and leave it for 10-15 minutes before cleaning.

If the solvent does not completely remove the styrofoam, you can try using some detergent. During the cleaning process, air circulation should be maintained to prevent volatile gases from affecting breathing and health.

Wash styrofoam floors and walls.

Rub styrofoam onto the floor or wall, and don't wash it right away. First, use gloves and safety glasses or face shields to prevent the effects of chemicals on your body. Apply some lime dilution to the styrofoam, wait a few minutes, and then rinse it off with warm water.

It can also be cleaned with some detergents. When working with large or cured styrofoams, cover them with newspaper or cloth to avoid chemicals splashing elsewhere.

Precautions Cleaning hair Zheng hail megafoam needs to pay attention to the following points:

When handling styrofoam, you should wear anti-shouting rental equipment to avoid damage to the body.

Do not use water to wash the styrofoam as it will accelerate curing.

When handling large quantities of styrofoam, air should be allowed to circulate to prevent volatile chemicals from affecting respiratory health.

Care should be taken when handling styrofoam to avoid spilling chemicals elsewhere.

When using solvents, follow the principle of safe use.

Conclusion The adhesive and curing properties of styrofoam make it an irreplaceable material, and at the same time, it also brings us some cleaning trouble. When cleaning styrofoam, you need to pay attention to safety issues, and when choosing cleaning agents and tools, you need to be cautious and reassuring. If not done properly, it can cause harm to the body and the environment.

Therefore, proper protection, careful handling and correct handling are required to clean the styrofoam.