ERS ™ 200 is a two-part epoxy adhesive used to impregnate fibers with high strength and modulus of elasticity that have no shrinkage during hardening and provide excellent bonding to building materials. This product hardens quickly and its mechanical and chemical stability is magnificent. FRP epoxy adhesives are known for their excellent adhesion, chemical and thermal resistance, mechanical properties and electrical insulation properties. The chemical resistance of epoxies to base solutions is excellent and it can be a good option for tanks with mineral salts.
Application of FRP adhesive in structures and buildings
Since all types of FRP epoxy adhesives and resins are capable of bonding large surfaces and heavy joints, it can be said that construction and civil engineering is the largest market for this product. Application of FRP adhesive includes the production of adhesives, plastics, paints, coatings, primers and sealants, flooring and other construction products.
In fact, most of the adhesives you know as “construction” or “engineering” adhesives are FRP epoxy resin adhesives. This adhesive has a high performance and is used to make multi-layered wooden decks, walls, ceilings and other items. This type of adhesive is also used in cases where a strong connection is required with the substrate, such as the connection of FRP fabrics to the concrete substrate. Epoxy adhesive can adhere to any surface such as wood, metal, glass, stone and some plastics and is more resistant to heat and chemicals than many adhesives.
Retrofitting of concrete structures using FRP adhesive and resin
FRP composite material consists of a polymer substrate with high strength continuous fibers such as glass and carbon fibers. In fact, the main task of reinforcement in composite materials is the fibers inside it, and the matrix or substrate acts only as a binder and protects the fibers, and in addition, transfers the loads to the fibers.
The use of FRP is a simple and economical solution for repairing and reinforcing concrete structures. FRP composites can be produced on site using a wet lay-up process. In this method, a layer of carbon or glass fiber is impregnated with epoxy and then glued to the prepared concrete substrate. Once the FRP adhesive has set and dried, it becomes an integral part of the structure and acts as an external reinforcing system.
In the FRP resin or adhesive system used to bond FRP fabric to the concrete substrate, first a primer is used to penetrate the concrete and improve the adhesive-substrate bond, and then epoxy putty to fill voids and small surface cracks as well as that used to create a smooth surface. Finally, saturated resin is used to impregnate the fabric and adhere it to the ready-mixed concrete substrate. A protective cover is also used to protect the FRP system from mechanical and environmental damage.
Wet layup process
Wet layup is the impregnation of fibers with FRP epoxy adhesive and its application on a manually prepared surface. In this method, to ensure the impregnation of reinforcing fibers and achieve the desired properties, the most essential factor is to observe the correct ratio of fiber to resin.
In general, the heavier the fiber and reinforcing material, the greater the amount of resin needed to impregnate and saturate them. As a result, it is important to know the ratio of fiber to resin. However, the optimal ratio of fiber to resin is usually 60% fiber to 40% resin.
Select the appropriate FRP epoxy resin
If you are not sure what type of adhesive or FRP fiber resin is right for your project, first check the following:
What is the estimated thickness of the epoxy layer required for your project?
How long can you wait and let the epoxy harden?
Do you need a mold to prevent the adhesive from scratching and holding when the epoxy dries?
What is the wear resistance required by the project?
Do you need to impregnate the reinforcing material with epoxy resin?
Do you need epoxy with special properties?
Will the resin be exposed to extreme temperatures, humidity, chemicals, ultraviolet Light or other harmful agents?
But to choose FRP epoxy, consider these priorities
- Check the measured strength for the product
- Time required to harden and curing
- Being Waterproof
- Excellent adhesion to concrete and most building materials
- Gain excellent initial and final strength
- Excellent chemical stability
- Impact and abrasion resistance
- Has good moisturizing and impregnating FRP fibers
- Low concentration and high penetration power
- Slight odor and safe for users
- Easy mixing
- the assembly of different parts of automobiles like sun roofs, side view mirrors, spoilers and many other important parts.
- As a resin impregnating carbon fiber and glass
- As an epoxy primer on various concrete and construction surfaces
- Bonding layer for epoxy repair mortars on dry concrete surfaces
- Rebar adhesive
- As a versatile epoxy adhesive for various applications
- 23 kg buckets
- Clear light yellow liquid
Clear light yellow liquid
Clear light yellow liquid
Store dry at 4°C – 40°C
A:B = 100:13
7000 -10000 MPa
|Tensile strength (ASTM D638)||
|pull off Adhesion testing||
Tensile modulus(ASTM D638)
Between -35°C until 65°C
|Setting time (at 25°C)||
|Pot life (at 25°C)||
Installation and implementation of FRP
- First the bed should be prepared with primer and FRP epoxy putty and then gently sanded and the surface should be cleaned of any dust, oil or other contaminants.
- The prepared substrate should be impregnated with saturated FRP epoxy resin.
- To mix two-component FRP epoxy adhesive, resin and hardener mixing ratio are 100: 13 (component A to component B). Note that you only mix the amount of glue that is needed during the working time.
- First, you must mix component A, resin, gently and slowly at low speed (600 rpm) for 3 minutes, using a mixer. keep the mixer head inside the material so that there is no air inside the resin.
- Carefully measure the weight ratio of the components and then add component B, Hardener, to the resin.
- Then mix the mixture gently using a mixer at a speed of 600 rpm. To have a smooth and even uniform, the material needs to be well-mixed for 3 to 5 minutes.
Impregnation of resin on surfaces
Apply the saturated resin on the prepared surface using a nap roller or a brush.
Dip the carbon fabric or glass fabric into the saturated resin, then place it on surface and press it, using a roller to remove the adhesive. (Note that some fabrics may not need to be impregnated with saturated resin, and you can apply it directly to the surface)
Apply the second layer of saturated epoxy resin to the fabric using a nap roller or brush.
If more layers of fabric are needed for further reinforcement, repeat steps 1 to 3.
Technical documentation request
Frequently Asked Questions
What is epoxy adhesive?
Epoxy adhesives are a combination of two components, resin and hardener. In fact, the hardener acts as a catalyst in the resin. The hardening catalyst in the resin starts the curing process and then provides the stiffness and strength of the epoxy adhesive by exothermic chemical reaction. Epoxy adhesives adhere to most materials and establish strong joints with high mechanical properties.
What is the advantage of epoxy adhesives?
Epoxy adhesives can be characterized by high adhesion strength, high strength, high resistance to corrosion and chemical attacks, high heat resistance, high water resistance, compatibility and adhesion with most materials, high resistance to stable loads and ... pointed out.
What are the uses of epoxy adhesive?
Epoxy adhesives, due to their good mechanical properties, can be used for bonding, sealing or coating surfaces. Some applications of epoxy adhesives include fabrication of FRP composites, rebar planting, installation of FRP systems, installation of metal plates on concrete surfaces, as a bonding layer of restorative mortars to old concrete or bonding of old concrete to new concrete, repair of cracks by sewing And ... becomes.
How to use epoxy adhesive?
For better adhesion of epoxy adhesive to the desired surface, the surface must be free of any contamination such as grease, plaster, paint, etc. After preparing the surfaces, the epoxy adhesive components are mixed with the ratio specified in the datasheet provided by the manufacturer. After preparing the adhesive, it should be applied to the desired surfaces using a syringe or manually. Finally, the epoxy adhesive must be cured or cured under suitable temperature conditions and at a certain time in the datasheet.
Epoxy adhesives can be used in what ways?
Epoxy adhesives can be applied using methods such as manual lamination, spraying or robotic processes.
What are the physical specifications and packaging of epoxy adhesives?
Epoxy adhesives are a clear, clear liquid. Epoxy adhesives are packed in special buckets of 20 to 23 kg and are marketed.
What is the best temperature to use epoxy adhesives?
Warmer temperatures accelerate the reaction and colder temperatures slow down the reaction. Epoxy adhesives can be used at a temperature of 5 to 35 degrees Celsius. But the best performance is provided at a temperature of 24 to 30 degrees Celsius.
How to mix epoxy adhesive components?
To mix and prepare the epoxy adhesive, you must first mix the contents of container A for 1 to 2 minutes. Then add the contents of container B to container A, completely or in equal parts, and stir the mixture again using a mechanical mixer for 1 to 2 minutes.
What is the price of epoxy frp adhesive?
The price of frp epoxy adhesive is calculated per kilo unit. Due to market fluctuations, it is not possible to offer a single price per kilo of epoxy adhesive. For this purpose, for inquiries or detailed information about the price of epoxy adhesive, you can contact the numbers listed on the Fazir website.
How to prepare epoxy adhesive?
For epoxy adhesives, you can ask construction materials suppliers or reinforcement companies. Afzir retrofitting Company is one of the companies active in the field of design, consulting and supply of building reinforcement materials.