A proper sealing application involves more than just sealant selection.
It requires the clear understanding of:
Joint design, Substrates involved, Performance required, as well as
As such, some key selection criterias are:
Joint Design:
- Required joint movement capabilities
- Aesthetics (Color, Finish)
Physical / Chemical Properties:
- Elongation (Tear Strength)
- Tension (Stress / Strain recovery)
- Substrate compatibility
Durability / External Factors:
- Thermal Movement
- UV / Moisture requirements
- Cyclic Joint Movement
- Rate of bio-degradation and relations with sealant service life
Application / Installation:
- Tooling Time
- Cure Time
- Tack Free Time
Of course! There are a plethora of sealants, each suited for a different use case.
1. Acrylic
2. Acetic
3. Modified Silicone (MS)
4. Neutral
5. Polyurethane (PU)
6. Silicone
(a). Fire-Rated
(b). General Glazing
(c). Premium
(i). Weathered
(ii). Structural
(iii). Non-Streak
Read more about it here.
*Note: "Sealant" and "Adhesives" are sometimes used interchangeably, but they are actually different.