How to identify the performance of sealant

There are many types of sealants: silicone sealants, polyurethane sealants, polysulfide sealants, acrylic sealants, anaerobic sealants, epoxy sealants, butyl sealants, neoprene sealants, PVC sealants, and asphalt sealants.

Sealant mainly depends on several properties:

1. Breaking strength (force at breakage cross-sectional area).

2. Bonding strength (the force of pulling the bonding area, except for the destruction of the substrate) 3. Elongation at break (the original length of the length when pulling).

4. Anti-aging ability.

5. Appearance (matte, particles, bubbles).

6. Shape retention (no drawing, no sagging façade) 7, shelf life 8, curing time.

What I want to tell you here is that there is no good or bad adhesive, and the performance corresponds to the best, and it is the best fit. Secondly, there is stability and sufficient amount, which is a test of the manufacturer. If the capacity of the sealant is less than the standard capacity, the situation of the sealant is very serious, and the sealant is eliminated first, and there is a problem with the business idea of such a business, and the product is not better.

There are also many problems, which prove that the production process of its products is not strictly controlled.

There are many types of sealants, but sagging, extrusion, tensile adhesion, and displacement capacity are all universal. You can take a look at the official websites of more famous manufacturers, such as Dow Corning, Baiyun Chemical, Zhongyuan, etc., which generally have manuals.

By the way, there is another indicator that is alkane plasticizers, which are called white oil by insiders, and the amount added is easy to be bad.

First, the role is different.

1. Weather-resistant adhesive: used for weather-resistant sealing of various glass curtain walls; It is used for weather-resistant sealing of metal (aluminum sheet), enamel curtain wall, roof building joint sealing.

2. Structural adhesive: mainly used for reinforcement, anchoring, bonding, repair, etc.; Such as sticking steel, sticking carbon fiber, planting reinforcement, crack reinforcement, sealing, hole repair, road nail pasting, surface protection, concrete bonding, etc.

3. Sealant: It is an adhesive used to fill the configuration gap and play a sealing role. It has the functions of anti-leakage, waterproof, anti-vibration, sound insulation, heat insulation, etc.

Second, the principle of making is different.

1. Weather-resistant glue: use a glue squeeze gun to squeeze the glue from the sealant barrel into the seam that needs to be sealed, and the sealant absorbs the moisture in the air at room temperature.

2. Structural adhesive: It can be easily extruded and used under a wide range of temperature conditions, and relies on the moisture in the air to solidify into excellent, durable high-modulus, high-elasticity silicone rubber.

3. Sealant: made of dry or non-dry viscous materials such as asphalt, natural resin or synthetic resin, natural rubber or synthetic rubber as the base material, with inert fillers such as talc, clay, carbon black, titanium dioxide and asbestos, and then added plasticizers, solvents, curing agents, accelerators, etc.

Third, the characteristics are different.

1. Weather-resistant adhesive: it has excellent weather-resistant performance.

2. Structural adhesive: aging resistance, fatigue resistance, corrosion resistance.

3. Sealant: It has the characteristics of anti-leakage, waterproof, anti-vibration, sound insulation and heat insulation.

Dear drop, 1. The difference between silicone structural sealant and silicone weather-resistant sealant: 1. Silicone weather-resistant sealant is mainly used for sealing caulking between materials, while silicone structural sealant is mainly used for bonding, and the two are not used in the same place. 2. In addition to the characteristics of weather-resistant sealant, silicone structural adhesive also has stronger bonding performance than weather-resistant sealant, which is mainly manifested in tear strength, elongation at break, tensile strength, tensile strength is mainly used in stress-bearing places.

3. Structural adhesive is used for structural and non-structural assembly bonding of various curtain walls, while weather-resistant adhesive is mainly used for waterproof sealing of joints. 4. The modulus, hardness, strength and quality of the structural adhesive are higher than those of the same grade of weathering adhesive, but the elasticity of the weathering adhesive is higher than that of the structural adhesive.

Dear drop, 1. The difference between silicone structural sealant and silicone weather-resistant sealant: 1. Silicone weather-resistant sealant is mainly used for sealing caulking between materials, while silicone structural sealant is mainly used for bonding, and the two are not used in the same place. 2. In addition to the characteristics of weather-resistant sealant, silicone structural adhesive also has stronger bonding performance than weather-resistant sealant, which is mainly manifested in tear strength, elongation at break, tensile strength, tensile strength is mainly used in stress-bearing places.

3. Structural adhesive is used for structural and non-structural assembly bonding of various curtain walls, while weather-resistant adhesive is mainly used for waterproof sealing of joints. 4. The modulus, hardness, strength and quality of the structural adhesive are higher than those of the same grade of weathering adhesive, but the elasticity of the weathering adhesive is higher than that of the structural adhesive.

Question: The windows are insulated with what kind of northern.

Dear, silicone weatherproof sealant is recommended.

Ask if the structural glue can be used at zero degrees.

Dear drops, it's okay Well, it's just that the density is insufficient, and I ask what glue is generally used to install windows.

Dear Drip Silicone Weather Resistant Sealant The density is very high Well, it is very durable and <>

Okay, okay, um, dear drops.

Thank you for your question. You're welcome to love a drop.

In fact, it is generally the same, it was collectively referred to as sealant earlier, and then diversified with the change of use, structural adhesive is mainly bonding, weather-resistant adhesive and glass glue are mainly sealing wall joints. Tasani Glass Glue wants to help you.

Weather-resistant sealant: a sealant specially used for caulking and sealing the joints between the building curtain wall plate and the plate, which plays the role of sealing and waterproofing.

Structural sealant: It is specially used for the sealant that binds the glass to the aluminum alloy frame in the architectural glass curtain wall, and plays a structural bonding role.

Sealant: Originally, it was a general term for all sealants, but it was generally used to refer to ordinary construction sealants other than weathering adhesives and structural adhesives.

These adhesives have a common feature that they can be used as sealants, the difference is that the structural adhesive can be load-bearing, the weather-resistant adhesive can be used outdoors, and the sealant is used as a sealant alone.

Weather-resistant adhesive refers to resistance to various extreme environments: for example, Hummer's epoxy reinforcement glue is resistant to extreme environments such as high temperature, acid and alkali, and corrosion. Structural adhesives, including planting glue, adhesive steel glue, pouring glue, joint filling glue, crack repair glue, etc.

Structural adhesives: Adhesives that are resistant to aging, fatigue, corrosion, and stable in performance, and are suitable for bonding structural parts that withstand strong strength. In the decoration industry, it is used to paste stone and finishing materials

The performance of glass glue and weather-resistant adhesive is about the same, and the viscosity of the glue is worse than that of structural adhesive. Take it to close the mouth and so on.

As the name suggests, sealant is the glue used to deal with sealing, and there are many kinds of sealants in Shilin, you can check them out.

The rear angle refers to the strong adaptability to the season, and the structural angle is specially used for the diagram and the structural diagram.

I don't know the difference, I'm sorry I haven't used it.

The difference between weather-resistant adhesive, structural adhesive and sealant.

Weather-resistant adhesive: weather-resistant sealing of various glass curtain walls with birds; It is used for metal (aluminum plate), enamel curtain wall weather-resistant dense sealing and sealing of roof building joints. Structural adhesives:

It is mainly used for reinforcement, anchoring, bonding, repair, etc.; Such as sticking steel, sticking carbon fiber, planting reinforcement, crack reinforcement, sealing, hole repair, road nail pasting, surface protection, concrete bonding, etc. Sealant: It is an adhesive used to fill the gap in the configuration to play a sealing role.

It has the functions of anti-leakage, waterproof, anti-vibration, sound insulation, heat insulation, etc.