Is sealant tape better than sealant?

Both sealant and sealing tape have their own advantages and disadvantages, and their applicability mainly depends on specific usage scenarios and requirements. Here is a comparative analysis of the two to help you make a more suitable choice:

Sealing glue (liquid/paste)
Advantage:
Strong filling ability: suitable for irregular surfaces, wide gaps, or scenes that require filling deep holes (such as door and window gaps, around pipelines).
High durability: it forms an elastic sealing layer after curing, with excellent weather resistance, waterproof and anti-aging properties (such as silicone adhesive and polyurethane adhesive).
High bonding strength: It can firmly bond with various materials (glass, metal, ceramics, etc.) and is suitable for structural sealing.
Long term sealing: suitable for applications that are exposed to outdoor or humid environments for a long time (such as bathrooms, roofs).
Disadvantages:
Complex construction: requires glue gun operation, long curing time (several hours to several days), and waiting for drying.
Cleaning is troublesome: it is easy to dirty the surface before solidification, and it is difficult to clean residual colloids.
Poor flexibility: It is difficult to adjust the position after solidification, and once an error occurs, it needs to be removed and redone.
Typical applications: door and window installation, kitchen countertop joints, roof waterproofing, pipeline sealing.

Sealing tape (pre formed tape)
Advantage:
Ready to use: No need to cure, ready to use after tearing, suitable for quick repair or temporary sealing (such as butyl tape, foam tape).
Convenient construction: No tools required, can be used by hand, suitable for DIY or narrow space operation.
Clean and environmentally friendly: no risk of glue overflow, no surface pollution, suitable for fine occasions such as electronic devices and car interiors.
Good flexibility: can adapt to slightly deformed seams (such as air conditioning ducts, lightweight board splicing).
Disadvantages:
Weak adaptability to gaps: Poor sealing effect on wide gaps or uneven surfaces, may require multi-layer stacking.
Limited durability: Long term exposure to high temperatures, ultraviolet radiation, or humid environments can cause aging (except for some tapes).
Low adhesive strength: suitable for non structural sealing, may fail in load-bearing or high-pressure scenarios.
Typical applications: temporary waterproofing (such as tent seams), air conditioning duct sealing, emergency response to vehicle water leakage, dust prevention for electronic components.

How to choose?
Scenario priority:
Long term/outdoor/complex gaps: Choose sealant (such as silicone sealant).
Temporary/Quick/Flat Surface: Choose sealing tape (such as butyl tape).
Environmental factors:
High temperature and humid environment: Priority should be given to sealant with strong weather resistance.
Frequent vibration or deformation joints: choose elastic tape (such as PE foam tape).
Construction conditions:
No tools or beginners: Tape is more user-friendly.
Professional construction: The sealant has a longer lasting effect.