What's structural sealant, what's weather resistant sealant?

Structural sealant is anti-aging,anti-fatigue,anti-corrosion,high strength adhesive than can bond and join structures.Large bearing capacity,long service life.It is often used in the construction of joint structural components requiring greater load capacity.Weatherproof sealant,also known ad all-weather sealant,has a certain weather resistance(anti-aging,anti-pxidation,good toughness),and can maintain a certain stability in different environments.Used for sealing,weatherproof,UV protection,etc.What's the difference between structural sealant and weatherproof sealant?

1. Different roles.

The main difference is that the structural sealant is load-bearing and needs to transfer the external and internal forces of the bonded material, which is used for bonding between glass, window frames, stone and other components.

The weatherproof sealant does not bear load and mainly plays a sealing role. It is used for sealing between components to achieve the purpose of waterproofing.

Note: weather resistant sealant has good adhesion, even if it is not structural, it can also withstand a certain load, and can not consider the transfer load.

2. Different prices.

The price of structural adhesive is higher than that of weather-resistant adhesive of the same grade.

Structural adhesive not only has the performance of weather-resistant adhesive, but also has stronger bonding properties than weather-resistant adhesive.

3. Different uses

Structural silica gel: mainly used for component reinforcement, anchoring, bonding, repair, etc. Such as bonding rebar, bonding carbon fiber, reinforcement, crack reinforcement, sealing, hole repair, spike paste, surface protection, concrete bonding, etc.

Weather-resistant silica gel: used for weather-resistant sealing of various glass curtain walls; Weather-resistant ceiling seals for metal (aluminum) and enamel curtain walls and roof construction joints.

4. Different attributes

Structural silicone sealants are divided into two components and one component, and weather-resistant silicone sealants have only one component.

Structural adhesive has strong tear resistance, elongation at break, tensile strength; The weather-resistant glue can resist ultraviolet light, snow and acid rain.

The elasticity of weatherproof caulking is higher than that of structural caulking.

Structural adhesive can withstand alternating external forces, but if it is subjected to external forces for a long time, displacement will occur. Therefore, structural adhesive should not be exposed to wind, sun, rain and other harsh environments for a long time.

Weather resistant sealant can not withstand alternating external forces for a long time, but can be exposed to wind, sun, rain and other harsh environments for a long time. Most structural and weather resistant sealants are curtain wall sealants and insulating glass sealants. In the construction process, the appropriate construction silicone sealant should be selected according to the construction requirements and construction environment, so as not to affect the construction effect. Choosing the right silicone sealant and professional manufacturers will get twice the result with half the effort.