What are the differences and specific uses of sealant, glass glue and structural glue?
2024-05-07
Introduction to glass glue
Glass glue is the material that bonds and seals various glasses with other substrates. There are two main categories: silicone adhesive and polyurethane adhesive (PU). Silicone glue is divided into acid glue and neutral glue, structural glue and so on. Polyurethane adhesive is divided into adhesive and sealant.
Glass glue specific application
1, suitable for all kinds of curtain wall weatherproof seal, especially recommended for glass curtain wall, aluminum-plastic panel curtain wall, stone dry hanging weatherproof seal.
2, metal, glass, aluminum, tile, plexiglass, coated glass between the joint seal.
3, concrete, cement, masonry, rock, marble, steel, wood, anodized aluminum and painted aluminum surface joint seal. Primer is not required in most cases.
4. It has excellent weather resistance such as ozone resistance and ultraviolet resistance, giving it a long service life.
Introduction to sealants
Sealant refers to a sealing material that is deformed with the shape of the sealing surface, is not easy to flow, and has certain adhesion. Usually made of asphalt, natural resin or synthetic resin, natural rubber or synthetic rubber and other dry or non-dry viscose as the base material, and then included in the inert filler, and then added plasticizer, solvent, curing agent, accelerator, etc. The sealant is distinguished from the performance, the single finger effect is sealing, weather resistant adhesive, silicone structural adhesive and polyurethane adhesive have a sealing effect, but it has other very important roles, such as high bonding strength and good weather resistance.
Sealant specific application
1, according to the use of classification, can be divided into building sealant, automotive sealant, insulation sealant, packaging sealant, mining sealant and other types.
2, according to the performance classification after construction, can be divided into two kinds of fixed sealant and semi-fixed sealant, of which the fixed sealant can be divided into rigid and flexible, rigid sealant vulcanization or solidification after the formation of solid, rarely elastic, can not bend, usually the joint is not movable; Flexible sealant has elasticity and softness after vulcanization. Non-curing sealant is a soft solidifying sealant that keeps the non-dry tackifier continuously migrating to the surface state after construction.
Structural adhesive introduction
Structural adhesive finger strength is high (compression strength >65MPa, steel-steel positive tensile bonding strength >30MPa, shear strength >18MPa), can withstand large loads, and aging resistance, fatigue resistance, corrosion resistance, stable performance in the expected life, suitable for bearing structural parts bonding adhesive.
Structural adhesive application
1, mainly used for glass curtain wall between metal and glass structure or non-structural bonding assembly.
2, it can directly connect the glass and the surface of the metal component to form a single assembly component, to meet the curtain wall design requirements of the full or half hidden frame.
3. Structural bonding and sealing of insulating glass.
4, suitable for porous stone, laminated glass, insulating glass, mirror glass, coated glass, zinc, copper, iron materials and other bonding sealing
