What is construction adhesive? Classification, price, uses

Construction adhesive is an adhesive that replaces nails and screws. It helps create strong and durable joints between many materials such as wood, plastic, metal, brick, concrete and stone.

The Vietnamese market has two typical types of construction glue: nail-free glue (VND 32.000 - 45.000/300ml tube) and Epoxy AB glue (VND 180.000 - 280.000/kg). Market reference price September 2025.

Note: Use the glue in a well-ventilated area (minimum 2m²). Wear rubber gloves (0,5mm thick) and keep out of reach of children. Consult a specialist when using for heavy-duty construction. If contact with skin occurs, wash immediately with tap water for 15 minutes. Store in a dry place below 30°C.

What is construction adhesive?

Construction adhesive is a specialized adhesive that replaces screws in construction. This product creates strong, durable bonds between materials such as wood, plastic, metal, brick, concrete and natural stone.

How many types of construction adhesives are popular today?

There are two common types of adhesives used in construction: nail-free adhesive and two-component Epoxy adhesive (AB).

Nail-free glue – Popular construction glue

Nail-free adhesive is a construction adhesive that comes in a tube and is ready to be used directly. This product is designed to replace screws in construction. This adhesive creates a strong bond when completely dry.

The maximum load-bearing capacity of the nail-free glue is 100kg/m², suitable for interior items weighing less than 50kg, for example:

• Wall paneling (plastic, wood, bamboo charcoal paneling).
• Attaching molding accessories.
• Attach hooks and light shelves to brick or wooden walls.
• Stair treads.
• Bonding of building materials such as wood, metal, stone, concrete.

Two-component epoxy glue (AB) – Glue for heavy-duty joints

Two-component epoxy adhesive is made from epoxy resin (A) and hardener (B). When mixed in the correct proportions, the mixture creates a very strong bond.

The load-bearing strength of Epoxy glue reaches 30kg/cm² (equivalent to 300.000kg/m² or 3MPa). This type of glue has good chemical resistance and waterproofing.

Main applications include bolt anchoring, steel implantation into concrete, large format natural stone bonding and structural crack repair.

How much does construction glue cost now?

As of September 2025, the reference price of construction adhesives on the market is as follows:

• Nail-free glue: about 32.000 - 45.000 VND/300ml bottle.
• AB Epoxy Glue: fluctuates 180.000 - 280.000 VND/kg.

Prices fluctuate 15-20% depending on the brand, according to a market survey conducted from September 10-15, 2025 by the Vietnam Association of Building Materials.

Frequently asked questions about building materials adhesives

Should I choose nail-free glue or epoxy glue for my construction project?

Choose glue based on the required load capacity. Nail-free glue is suitable for light constructions under 50kg, Epoxy glue is used for constructions with heavy loads over 100kg.

• Nail-free glue: Suitable for civil construction, interior installation, gluing light details, not bearing too high load.
• Epoxy glue: Optimal choice for industry, heavy construction, joints that need to withstand great force and be durable against environmental impacts.

What are common mistakes when gluing on construction projects?

4 common mistakes when gluing on construction projects are:

1. Apply when the surface is not clean or still damp. Solution: Clean the surface with a cleaning solution, wait for it to dry completely for at least 2 hours before applying.
2. Wrong mixing ratio of components A&B of Epoxy glue.
3. Do not fix the object while waiting for the glue to dry.
4. Use acidic glue for sensitive surfaces such as foam board, bamboo charcoal panel.

How is construction adhesive different from caulk?

The adhesive ability of the sealant is to seal the gap, not to bear the force like the adhesive of construction materials, specifically:

According to a study in August 2025 by Dr. Nguyen Van Thinh - Vietnam Institute of Construction Materials: "In 200 load-bearing tests, the joint using sealant only reached about 0,5-1,2 N/mm², while the construction adhesive reached over 8-12 N/mm². This shows that if the wrong glue is used, the adhesion can be up to 10 times worse, not ensuring structural safety."

If you mistakenly use construction adhesives and sealants, the project may face risks such as: unsafe connections, peeling materials, and safety risks during use.

Where to buy quality construction adhesive?

To choose to buy quality glue, prioritize reputable brands with a wide dealer network to get technical advice and support when needed. Currently, Kosmos Vietnam is distributing Kosmos brand glue, serving both interior and exterior construction.

Kosmos glue has 3 outstanding advantages. First, it adheres well to many surfaces such as wood and plastic. Second, the surface dries quickly in 12-30 minutes and is completely dry after 24-48 hours. Third, it can withstand temperatures from -20°C to 70°C.

Kosmos adhesive is an effective adhesive solution for many construction projects: from wall cladding, stairs, molding to exterior materials.

Detailed information about Kosmos glue is in the following video:

To buy construction adhesive, you can contact Kosmos Vietnam directly at 0932.067.388 or find the nearest dealer in the nationwide distribution system. With more than 500 dealers spread across the country, customers can easily access products and receive advice on choosing the right glue for each category.