Practical life tips for foam caulking_Toluene diisocyanate manufacturer

Today I will give you What I am sharing is a little knowledge about foam caulking in decoration. Foam caulking is a foaming adhesive that we often use during decoration. In most cases, it is used on doors. However, due to its foaming principle, it is difficult to control the dosage, which may cause the foam caulking to overflow and stick to nearby objects, such as fixing door covers, etc. Door frames, etc.

Once these are adhered with foam caulk, the tip posted online is to use banana water, wind oil essence, etc., but I think this is a big misunderstanding. In this treatment method, the glue is often not removed, but the paint of the furniture is easily damaged. How to deal with it without damaging the paint surface? Let’s take a look below.

1. Introduction to foam caulking

Foam caulking agent is also called polyurethane foam caulking agent. The main component of the combination is polyurethane. Foam caulking agent has the characteristics of foaming expansion and high adhesion. We Foam caulks commonly used for decoration are all in high-pressure cans. The polyurethane in the foam is sprayed out by squeezing it out. The foamy polyurethane reacts with the moisture in the air and will solidify after a period of time.

2. The main function of foam caulking agent

（1) Pest-proof, waterproof

Foam caulking agent can be used to seal air-conditioning holes to prevent insects and mice, and it can also play a role in waterproofing and moisture-proofing.

(2) Insulation

Using foam caulking when installing bathtubs and sinks can also play a thermal insulation role and extend the service life of the products.

(3) Thermal insulation and noise reduction

When installing windows, they are used to seal the balcony windows, which can insulate and reduce noise.

(4) Moisture-proof and mildew-proof

Used on the back of the wardrobe, it can reduce moisture and mold in the wardrobe.

(5)Filled

When installing set doors, foam caulking is used as the main material to fill gaps and fix the position.

How to remove foam caulk

3. Correct glue removal method

（1)Physical removal font>

If it is not stuck to the door pocket on a large area, you can use physical removal methods. After the foam glue is completely dry, carefully peel it off with your hands. Use a new scraper to gently scrape the remaining part. Just take it off. Nowadays, most door frames are made of baking paint, which has a certain degree of wear resistance. Slight scratches will not cause damage to them.

（ 2) Special adhesive remover

Special adhesive remover does not contain acrylic and other raw materials and will not cause damage to the paint surface, but it will have a strong impact on the foam glue. It has strong dissolving ability. After the foam glue is cured, tear it off, spray the remaining part with glue remover, and wipe it gently with a rag to remove it.

(3) Wrong glue removal method

①Banana water

Banana water is its common name. Officially it should be called diluent or solvent oil, which is what workers often call thinner. The function of thinner is to dilute Paint, before we do the baking process on the door, the paint sprayed on the surface of the wood products is mixed with thinner, so it has a strong dissolving effect on the paint, but if you use it to remove the glue on the door cover, it will When the glue comes off, it will also cause great damage to the paint surface of the door frame.

②Wipe before curing

It is completely wrong to wipe the foam glue when it is not completely cured. Uncured foam The glue still maintains a strong stickiness, and the more you wipe it, the dirtier it becomes.

4. Things to note when using foam caulking

（1 ) Remove clutter

The debris at the place of use should be removed before use. If the humidity is less than 50, it should be sprayed with water to allow the foaming agent to better Play a role in volatilization, otherwise “big holes” will appear.

(2) How to use

It needs to be shaken evenly before use, with the head facing down, tightly combined with the spray gun, and only half of the gap is filled.

(3) Temperature

When the temperature is lower than10℃, 40-50° should be used Warm it with hot water, the surface drying time is 5 minutes, it can be cut in 30 minutes, and it will be completely cured in 24 hours.

(4) Protection

When applying foam caulking, it is best to protect it with newspapers or disposable protective films around it to avoid unnecessary Places stuck to foam caulk.

When we use foam caulking agent to enter door covers and other construction and installation, try to use newspapers or disposable protective films to protect the surroundings to avoid secondary damage caused by cleaning the foam caulking agent. If not Be careful when foam glue is stuck, and be sure to choose the correct glue removal method. You can either physically remove it or use a professional glue remover. Do not trust some tricks posted online, otherwise it will cause serious damage to the door cover or wood veneer. .