The Differences Detween Structural Adhesive and Sealant

The main differences between structural adhesives and sealants are their functions, physical properties and use scenarios.

1. Different functions. Structural adhesive is mainly used for bonding and connecting structural parts, can withstand greater force and weight, suitable for construction, aerospace, automobile manufacturing and other fields, while the sealant is mainly used to fill and seal the gap, prevent water, gas and dust, etc., often used in construction, furniture, automobiles and other fields.

2. Different physical properties. Structural adhesives usually have high strength, hardness, adhesion and temperature resistance, and can withstand large tensile and shear forces, while sealants usually have high flexibility and elasticity, and can adapt to the shape and size of the object.

3. Different usage scenarioes. Structural adhesives are used for occasions that require strong support and retention, such as bonding metal, glass, plastic and other materials, and sealants are used for occasions that require water, gas and dust proofing, such as bathrooms, kitchens, vehicles and buildings.

4. Different ingredients. Structural adhesives are usually made of materials such as epoxy, polyurethane, acrylic and phenolic resins, which have high strength and hardness, while sealants are usually made of materials such as polymers, silicone, polyurethane and acrylic, which have high flexibility and elasticity.

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