The Basic Information Of Structural Adhesive And Weather-Resistant Adhesive

The Basic Information of structural adhesive and weather-resistant adhesive

 
1. Structural adhesive

1. What is structural adhesive

Structural adhesive is a kind of adhesive with high strength (compression strength>65MPa, steel-steel tensile bonding strength>30MPa, shear strength>18MPa), which can withstand large loads, and is resistant to aging, fatigue and corrosion. It has stable performance within the expected service life and is suitable for bonding strong structural parts.

Advantages of structural adhesives

1. 1. Easy to use: can be squeezed out and used at any time.
3. 2. Neutral curing: Applicable to most building materials without adverse reactions or corrosion
4. .
5. 3. Excellent adhesion: No primer is required and it can form strong adhesion with most building materials.
7. 4. Excellent aging resistance stability.
9. 5. After curing, it has high modulus performance and can bear the expansion and contraction displacement capacity of the interface of ±25%.

Curing time of structural adhesive

It can be put into use after curing at 20-25℃ for 24 hours or at 20-25℃ for 2 hours + 80℃ for 2 hours. If the temperature is low, heating or extending the curing time should be used to promote curing.

Uses of structural adhesives

Structural adhesive has high strength, peel resistance, impact resistance, and simple construction process. It is used for bonding the same materials or different materials such as metals, ceramics, plastics, rubber, and wood. It can partially replace traditional connection forms such as welding, riveting, and bolting. The stress distribution on the bonding surface is uniform, and there is no thermal impact or deformation on the parts.

Structural adhesives are widely used in engineering, mainly for the reinforcement, anchoring, bonding, and repair of components; such as bonding steel, bonding carbon fiber, planting rebar, crack reinforcement and sealing, hole repair, spike pasting, surface protection, concrete bonding, etc.

2. Weather-resistant adhesive

2. What is weather-resistant adhesive

Weathering glue is a single-component, neutral-curing silicone sealant designed for weathering seals of various curtain walls. It has excellent weathering resistance. After artificial accelerated climate aging tests, the physical and chemical properties of the sealant have not changed significantly. When using it, use a glue gun to squeeze the glue from the sealant tube into the joint that needs to be sealed. The sealant absorbs moisture in the air at room temperature and solidifies into an elastomer to form an effective seal.

Advantages of weather-resistant adhesive

1. 1. Single component, easy to use, with good extrudability and thixotropy in the temperature range of 4℃～+40℃, and can be directly applied by squeezing with a glue gun;
3. 2. Neutral curing, non-corrosive to metal, coated glass, concrete, marble, granite and other building materials, widely used;
5. 3. The displacement capacity reaches 20 levels. For the normal expansion and shear deformation of the curtain wall, this product can maintain the same performance and play an effective sealing role;
7. 4. Excellent weather resistance, aging resistance, UV resistance, ozone resistance, and water resistance;
9. 5. Excellent high and low temperature resistance. After curing, it will not become brittle, harden or crack at a low temperature of -30°C, and will not soften or degrade at a high temperature of +90°C, and always maintains good elasticity;
11. 6. It has excellent adhesion and forms a strong bond with most building materials after curing without the need for primer;
13. 7. Good compatibility with other neutral silicone adhesives.

Uses of weather-resistant adhesive

1. 1. Used for weather-resistant sealing of various glass curtain walls;
3. 2. Used for weather-resistant sealing of metal (aluminum plate) and enamel curtain wall;
5. 3. Used for sealing joints of concrete, metal, etc.;
7. 4. Sealing of roof construction joints.