Advantages of polyurethane adhesives, modified epoxy resins, and acrylics

The most important part of the reinforcement material is It’s the adhesive! It is the link connecting various materials. Only if its quality is good, the final bonding effect will be as required by the designer. Adhesives on the market now have various ingredients, such as modified epoxy resin, acrylic and two-component polyurethane. What are the advantages and disadvantages of adhesives composed of these three components? EditorFor everyoneShareJust .

1. Two-component polyurethane adhesive

Good weather resistance, strong adhesion, good toughness, strong plasticity, no need for topcoat, Effectively avoids various adverse effects caused by the topcoat; it is stable, resistant to high and low temperatures (suitable for extremely cold and hot areas), UV resistant, aging resistant, acid and alkali resistant, oil stain resistant, corrosion resistant, and has a long shelf life; it can produce Environmentally friendly two-component color non-slip road adhesive containing no solvents.

Although polyurethane is slightly inferior to modified epoxy resin in the single indicator of adhesion, it completely surpasses it in comprehensive performance indicators. Therefore, polyurethane adhesives are currently the most popular on the market, and the product price/performance ratio is the highest among the three major systems.

2. Modified epoxy resin adhesive

Advantages: It has good bonding strength and chemical resistance. It adopts a single-layer adhesive construction process, one layer of primer and one layer of anti-slip sand. No topcoat is needed, which effectively avoids quality problems caused by the topcoat. question. The chemical and physical properties of the colored sand on the coating surface are very stable, so the coating surface is relatively resistant to contamination.

Disadvantages: Weak weather resistance, poor toughness, and poor UV resistance.

3. Acrylic adhesive

Advantages: better weather resistance and quick drying performance, relatively low price.

Disadvantages: However, the poor adhesion of acrylic makes its construction technology and construction effects unsatisfactory. First of all, its strong pungent smell is difficult to dissipate, so if it is constructed indoors and the protection is insufficient, poisoning incidents may easily occur, and the surrounding environment will be greatly affected during construction. Secondly, due to its poor adhesion, it is usually done with a layer of primer, then sprinkled with anti-skid sand, and finally a layer of topcoat. Due to a layer of paint on its surface, a series of serious problems have arisen:

The adhesive composition on the market is complex, but Editor What I have been doing is polyurethaneAdhesive, it is highly safe and has good performance in bonding and other aspects. It is used in most reinforcement projectsPolyurethaneAdhesive. So if friends need adhesives, polyurethane adhesive span> is a good choice.