Joint sealants are used to seal joints and openings (gaps) between two or more substrates, and are a critical component for building design and construction.Jun 8, 2010
What is elastomeric joint sealant?
According to ASTM C 920, Standard Specification for Elastomeric Joint Sealants, sealants are “cold-applied elastomeric single or multi-component materials used for sealing, caulking, or glazing operations on buildings, plazas, and decks for vehicular or pedestrian use, and types of construction other than highway and ...
What is a construction joint sealant?
A sealer is soft and able to accommodate the concrete slab's expansion and contraction. The sealer's purpose is to prevent water, ice, and dirt from getting into the joint (and into the subgrade) and to prevent intrusion from below the slab—including of radon.
What is joint sealant material?
The development of modern polymeric sealants coincided with the development of the polymer industry itself, sometime in the early 1930's. Joint sealants are used to seal joints and openings (gaps) between two or more substrates, and are a critical component for building design and construction.Jun 8, 2010
What is the best concrete joint sealant?
- Best Overall. Sikaflex Self-Leveling Sealant. ...
- Best Bang for the Buck. Sashco 16210 Slab Concrete Crack Repair Sealant. ...
- Best for Foundations. RadonSeal Concrete Foundation Crack Repair Kit. ...
- Best for Large Cracks. Red Devil 0644 Pre-Mixed Concrete Patch. ...
- Best for Thin Cracks. ...
- Best Sealant. ...
- Best Cure Time. ...
- Best Epoxy.
What are joint sealants?
Overview. The most widely accepted definition of a joint sealant today is a material that minimizes both infiltration of surface water and incompressible material into the joint system. Secondarily, sealants are also purported to reduce the potential for dowel bar corrosion by reducing entrance of de-icing chemicals.
Should concrete joints be sealed?
Expansion joints need to be sealed periodically to protect against water, dirt, and debris. These elements can hurt the structural integrity of concrete over time. Water can also lead to mold and interior leaks that are costly to repair.Oct 26, 2020
What are the three types of sealants?
- Water based Latex. Popular for residential use because of the ease of application and ability to adhere to most substrates. ...
- Acrylic. These are UV stable making them suitable for exterior applications, and are not prone to shrinkage. ...
- Butyl. ...
- Polysulfide. ...
- Silicone. ...
- Polyisobutylenes. ...
- Polyurethane.
What is Nexus PRO joint sealant?
NexusPro is a silicone-based sealant for joints and cracks. It is specially engineered to provide long-lasting flexibility while standing up to harsh weather conditions. Unlike traditional polyurethane sealants, NexusPro resists UV rays, which means it won't crack, bubble, or dry.