Sealing compounds are designed to outlast sufficiently elastic or plastic to match the movement of the joints while adhering securely to the surfaces.

Construction material manufacturers and methods of joining them are growing fast in construction, and everyone should know about modern adhesives, sealants and joint filers and how to use them. Sealants and Adhesives are used in several places in civil constructions.

Adhesives
An adhesive is a material used to stick two or more parts together to become a single unit.

Nowadays, there are many specially-designed adhesives in the market for different purposes. Adhesives have advantages over fixing by mechanical works like drilling, plugging, nailing, etc., and plastic materials like PVC pipes are always joined using adhesives.

Some construction chemical suppliers are used only for one material, while others can be used with various materials. Adhesives are of three types:

Organic adhesives: These adhesives are obtained from animal protein, milk casein or starch, blood albumen, etc.
Rubber-based adhesives: These adhesives are nothing but materials in which rubber is dissolved in benzene or ground with other resins of plastics.
Synthetic adhesives: are produced from natural resins or manufactured plastic resins like melamine resins, urea resins, and phenol resins.

Adhesives Used in Timber Construction
Formaldehyde adhesives of phenol, urea and resorcinol are mostly preferred products in woodworks and used to make plywood and laminated products. They are also used in timber to strengthen the joints.

The following four grades of adhesives are well-known in timber construction:
• Weatherproof and boil-proof (WBP) - These grade products are highly resistant to micro-organisms, cold, boiling water and dry heat.

•Boil resistant (BR) - These products are inferior to WBP but resistant to weather.

• Moisture resistant (MR) - These products are moderately resistant to weather.
• Interior (INT) - These products are only for internal purposes.

We should check certain adhesives before buying plywoods, flush doors, etc., as some phenolic resin adhesives only fall into the first group. Plywood used for wet situations should be of grade.

Fevicol is a synthetic resin adhesive used in the furniture industry which is resistant to heat and water.

Adhesives Used for Joining Concrete
Epoxide's best adhesives are used for bonding broken concrete or setting metal posts in concrete, which saves time in construction and builds the bond strength within a day.

All epoxide adhesives used for buildings come in two parts and should be efficiently mixed before use. Araldite is commonly used for concrete works available in many forms. The two parts used for Araldite adhesive are:
• Araldite (GY250)
• Hardener (HY 830, HY 850, etc.)

Nowadays, Best waterproofing company are also used for coating steel rods for reinforced concrete construction to protect against corrosion.

Adhesives Used for Ceramic Tile Fixing
Ceramic tiles are used for floors, walls as tiles, and interiors and exteriors for cladding. Due to the necessity to speed up the work and the need for curing cement works has introduced new products for tile fixing.

These waterproofing solutions deliver more excellent bond strength, drop in weight of fixing material and make the work cleaner and quicker with fewer workers. They are generally one of the following products:
• Natural or synthetic latex-based mortars.
• Cement-based formulated thin-bed and thick bed mortars with latex.
• Synthetic resin emulsion
• Epoxides