Use method and precautions of liquid sealant

Liquid sealant is a sealing material that deforms with the shape of the sealing surface, is not easy to flow, and has a certain adhesiveness. It is an adhesive that is used to fill the gaps in the configuration to provide a sealing effect. With anti-leak, waterproof, anti-vibration, sound insulation, heat insulation and so on.
First, the correct use

1. Surface treatment: Remove oil, paint, moisture, rust, dust, etc. from the sealing surface before use.
2. Glue coating: Apply the glue evenly and evenly to the sealing surface or thread. Common methods include hand coating, pressure injection, pressure dipping and vacuum dipping.
3, curing: wait for the adhesive film to dry a little, do not stick to your hands, connect tightly. During the curing of the adhesive layer, temperature and time play an important role. At the same time, a certain pressure is required. Generally, it needs to be placed for 24 hours.
4. Trimming: Remove the excess adhesive edge extruded after curing under pressure to improve the appearance quality. Be careful not to peel the adhesive layer when trimming.
Second, matters needing attention

1. The gap of the joint surface should not be too large. If the gap is greater than 0.2mm, it can be used in combination with a solid gasket.
2. Control the thickness of the glue layer to ensure uniformity.
3. The sealant and the contact medium should not be miscible. Try the unknown material before using it. After the strip is dried, perform a media resistance test with the medium. If the strip is dissolved, it should not be used.
4. Pay attention to the use method, storage time and storage environment (the optimal storage environment temperature does not exceed 35 ° C).
5. It is not advisable to apply glue in places with large vibration.
6. The temperature and pressure used should not exceed the range of use of the sealant.

In the process of home renovation, there is another point that needs attention: how to make waterproof design during home decoration, especially in places with a lot of water, such as kitchens and bathrooms. Regardless of whether the original waterproof layer has been made, the waterproof layer should be redone before re-attaching the wall and floor tiles. The waterproof layer on the surrounding side walls is 200mm high. There are parts of the bathtub. When there is a shower and no other waterproof measures, the waterproof layer should be able to spray all parts of the shower. After the completion of renovation, such as kitchens, bathrooms and other watery and humid parts, the elevation of the ground should be lower than that of the hall or corridor. Stones that are not afraid of water should be installed at the door openings of kitchens and bathrooms. Waterproof treatment should be done at the roots to prevent water from seeping from the door openings to the halls.

If you do not pay attention to these problems during construction, the sealing effect may be unsatisfactory, and the leak-proof effect may be lost. If leak-proof phenomenon occurs, the sizing surface should be cleaned and re-sizing properly. In different construction environments, different sealants are used. When the construction site is a facade, a high-viscosity product should be used to avoid displacement of the construction site as much as possible, resulting in bonding and cracking.

In addition, the liquid sealant releases irritating gases during the curing process, which has an irritating effect on human eyes and respiratory tract. Alcoholic neutral gums release methanol during curing. Methanol is a potential carcinogen and a known skin and respiratory allergen. Volatile gases can irritate the eyes, nose, and throat. Therefore, the product should be used in a well-ventilated environment. Avoid entering the eyes or prolonged contact with the skin. Do not swallow the product. Keep out of reach of children; the construction site should be well ventilated; if accidentally splashed into the eyes, rinse with water and seek medical advice immediately.