What is the difference between self-adhesive and gum?
Jan 08, 2022
First, different uses:
Self-adhesive is suitable for the weather resistance sealing of all kinds of curtain walls, especially recommended for the weather resistance sealing of glass curtain wall, aluminum plate curtain wall and stone dry hanging. Seal the joint between metal, glass, aluminum, ceramic tile, plexiglass and coated glass. Can also be concrete, cement, masonry, rock, marble, steel, wood, anodized aluminum and painted aluminum surface joint seal. Primers are not required in most cases.
Gum is mainly used for metal and glass structure or non - structural bonding assembly of glass curtain wall. It can directly connect the glass and metal component surface to form a single assembly, to meet the curtain wall design requirements of fully hidden or semi-hidden frame. It can also be used for structural bonding and sealing of insulating glass.
Two, the role of different places:
Self-adhesive, also known as sealant, is mainly used for sealing caulking between materials and waterproof sealing of joints.
Back adhesive, also known as curtain wall structural adhesive, is mainly used for the bonding of structural and non-structural assembly of all kinds of curtain wall, and the role of the two is different.
Three, different bonding ability:
Self-adhesive can also be said to be a universal adhesive, mainly with uv resistance, acid rain, snow and other extreme weather. The displacement capacity of weather-resistant adhesive (which can be interpreted as elasticity) is higher than that of structural adhesive.
In addition to the characteristics of weather-resistant sealant, adhesives also have stronger bonding performance than weather-resistant sealant, mainly manifested in tear strength, fracture elongation, tensile strength is relatively strong, tensile strength is mainly used in the place of stress. The modulus, hardness, strength and price of structural adhesive are higher than the weather-resistant adhesive of the same grade.
