A sealer is soft and able to accommodate the concrete slab s expansion and contraction.
Joint sealer for concrete expansion joints.
Removing old material from a concrete expansion joint concrete expansion joints are also known as isolation joints.
Why joints need quality sealant expansion joints allow space in which concrete can contract and expand without causing cracks.
The pourthane joint sealant line is designed for sealing concrete and metal joints in a variety of applications including sidewalks balconies pavement terraces warehouses factories civil structures plazas and pitch pans.
Cracks can allow water to seep under the concrete creating a void that can cause the concrete to sink.
However joints need to be filled with soft pliable material so that rainwater can t get under the concrete which could cause the construction to sink or heave.
Its one component technology offers ease of use and cost effectiveness.
The system allows irregular and high movement in more than one direction whilst maintaining a high quality seal.
To solve this problem use a masonry blade on a circular saw to clean out the crack then fill it with a bead of silicone caulk that s made especially for concrete.
Like i said in the intro these joints allow concrete pads to expand and contract during freeze thaw cycles.
Sikaflex 1csl flexible self leveling polyurethane concrete expansion joint and crack sealant kit 3 29 oz tube limestone awf pro heavy duty 29 oz caulk gun 2 packs 3 4 x15 backer rod 3 5 out of 5 stars 4 78 42 78 42.
The caulk will seal the expansion joint and keep water out.
Sikadur combiflex is a high performance joint sealing system for construction expansion and connection joints as well as for cracks.
Sikaflex 1csl flexible self leveling polyurethane concrete expansion joint and crack sealant kit 3 29 oz tube limestone awf pro heavy duty 29 oz caulk gun 2 packs 3 4 x15 backer rod 3 5 out of 5 stars 4 78 42 78 42.
Sealers can also improve the appearance of floors and slabs.
When it comes to concrete floors a concrete joint sealer will protect the joint from damage caused by heavy equipment being driven and or rolled over the expansion joint chipping and cracking the edges which eventually leads to concrete joint failure.