Sealants & Joint Treatment
Sealants and joint-treatment systems are vital for maintaining watertight integrity across movement, expansion, and construction joints. As concrete expands and contracts due to daily and seasonal temperature fluctuations, joints must seal out water and debris. Polyurethane, polysulfide, and bituminous sealants offer varying degrees of movement accommodation, chemical resistance, and durability, supported by compressible backer rods and joint fillers to control sealant depth and prevent three-sided adhesion.
Selection Guidance: How to Choose
Select based on movement accommodation, chemical exposure, and joint type: For general expansion joints in building facades and structural concrete, specify polyurethane sealants (±25% movement). For joints subject to constant water immersion or chemical exposure (swimming pools, fuel stations, water channels), specify high-performance polysulfide sealants. Use closed-cell backing rods to establish the correct joint geometry.
Primary B2B Application Areas
Expansion and construction joints in civil structures
Facade cladding joints in high-rise buildings
joints in water tanks and sewage channels
Trafficable joints in runways and pavements
Specifier & Engineer Checklist
- Check Movement Accommodation Factor (MAF, e.g. ±25% or ±50% under ASTM C719)
- Confirm Shore A hardness is correct for trafficable vs. non-trafficable joints
- Verify chemical and fuel resistance for specialized civil applications
- Ensure proper backing material is used to establish the 2:1 width-to-depth ratio
Product Range
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View System DetailsSwimming Pools & Water Features
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View System DetailsTechnical Validation & Material Submittals
Request official project compliance validation sheets, coverage calculation models, and chemical analysis matrices for this product range.
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