Acrylic adhesives are renowned for their excellent overall performance, especially in industrial applications requiring high strength, aging resistance, and rapid curing. Key Features High Strength and Toughness: After curing, they form a strong and tough adhesive layer, with particularly excellent impact and peel resistance. Rapid Curing: Second-generation acrylates (SGA) and UV-cured acrylates can reach usable strength within seconds to minutes. Environmental Resistance:Weather resistance, UV resistance, water resistance, heat resistance (typically -40℃ to 120℃), and chemical resistance are generally superior to epoxy resins and polyurethanes. Wide Applicability: They have good adhesion to various metals, plastics, and composite materials, and can even bond materials with slightly oily surfaces (such as SGA). Adjustability: Through formulation design, products in different forms (liquid, paste, film) and with different properties (rigid, flexible) can be produced. Main Classifications 1. Reactive Acrylic Adhesives First-generation acrylic adhesives (FGA): Requires mixing, cures slowly, and is now rarely used. Second-generation acrylic adhesives (SGA - commonly known as "AB glue" or "blue and red glue") Characteristics: Non-mixing type, primer type (base agent + primer) or dual-base agent type. The biggest advantage is its ability to bond to oily surfaces, and its fast curing speed (initial cure in minutes). Typical Applications: Structural bonding: Metal/plastic parts for automobiles and motorcycles (such as rearview mirrors, spoilers), speaker magnetic circuits, elevator cars, rail transit interiors, etc. Repair and assembly: Widely used in mechanical repair, equipment installation, and other on-site operations. 2. Ultraviolet (UV) Curing Acrylic Adhesives Characteristics: Instantly cures within seconds under specific wavelength ultraviolet light irradiation, environmentally friendly and efficient, enabling automated precision coating. Typical Applications: Electronics Industry: Mobile phone/tablet display bonding (OCA optical adhesive), touchscreen assembly, camera lens mounting, PCB component encapsulation. Medical Devices: Assembly of disposable medical devices (such as syringes and catheters). Glass Furniture and Crafts: Glass lamination bonding. Fiber Optic Communication: Fiber optic coating bonding and connector protection. 3. Acrylic Pressure-Sensitive Adhesive (PSA) Features: Permanent adhesion; bonds under pressure without curing. Forms: Commonly coated onto substrates (such as films, foam, and non-woven fabrics) to form tapes, labels, and protective films. Typical Applications: Industrial Tapes: Double-sided foam tape (for automotive emblems and mobile phone structural component bonding), high-temperature masking tape (for spray coating masking), VHB strong double-sided tape (for building curtain walls and elevator decorative panels). Labels and Protective Films: Product labels, electronic product surface protective films, packaging ...

PA-8220 is a water-based,environmentally friendly acrylic emulsion specifically developed for grinding gravure film ink pastes. It can be used for grinding and dispersing various pigments, exhibiting excellent pigment dispersibility and color development, as well as superior resolubility and anti-tack properties. It is also a high-quality resin for inks used in high-end applications such as paper and cigarette packaging. Performance Indicators Appearance: Semi-translucent liquid Solid content/%:40±1 Viscosity (25℃, mPa·s): ≤3000 pH value: 7.5-8.5 Solvent (carrier): Water Ionicity: Anionic Glass transition temperature/℃: 25 PA-8220 features low odor and low VOC, good alcohol compatibility, excellent pigment dispersibility, and good anti-tack properties, making it an ideal choice for grinding and dispersing various pigments and a high-quality resin for inks used in high-end applications such as paper and cigarette packaging.

In the printing industry, the demands for waterborne coating performance, especially high-gloss applications, are increasingly stringent. Single-component waterborne acrylic emulsion systems often suffer from limitations in balancing key performance characteristics when meeting high-end requirements. To address this, Sinograce Chemical has developed a high-performance emulsion combination with complementary properties: a high-gloss film-forming emulsion and a high-gloss hard non-film-forming emulsion. Through scientific compounding technology, the two work synergistically to effectively overcome the performance limitations of a single system, significantly improving the overall performance of printed materials. This combination solution excels in both high gloss and excellent adhesion! 1. Product Introduction Water-based high gloss varnish (7052) - Water-based, low odor - High gloss and high transparency - Good wear resistance - Anti-fouling and anti-blocking Applications - Packaging of tobacco / wine / food / medicine, book covers 2. Product Characteristics Gloss This product achieves stable high gloss (80°~85°), meeting the high gloss requirements of high-end packaging, labeling, and other fields. Abrasion Resistance Excellent abrasion resistance, strong resistance to scratches and abrasion, protecting surface integrity. Anti-adhesion Good anti-sticking properties, effectively preventing printed materials from sticking or ink transfer under stacking or temperature and humidity changes, keeping the surface clean. Color Development Excellent color development performance, high color reproduction, and rich colors in printed patterns. Drying Speed The drying time is set reasonably, ensuring sufficient film formation and stable performance of the coating while meeting production efficiency requirements. 3. Product Applications Suitable for formulating water-based high-gloss varnishes, water-based aluminum foil varnishes, water-based clear varnishes, water-based flexographic and gravure inks, water-based decorative paper inks, etc. Water-based high gloss varnish (7052) is an acrylic emulsion suitable for use in water-based high-gloss varnishes and inks. It boasts excellent gloss and transparency, and superior adhesion, making it an ideal choice for your ink and varnish raw material applications. Q: Can you provide samples for testing? A: Yes, you can contact our sales manager at +8615755193346 to obtain samples free of charge. Q: Can you customize according to your requirements? A: Yes, we have a professional laboratory and can adjust the formula according to your actual application requirements at any time.

In many applications, acrylic adhesives do not require the addition of tackifying resins to improve pressure sensitivity, but in most cases, they are necessary: To increase initial tack and peel strength To improve adhesion to low surface energy materials Tackifying resins are commonly used in acrylic emulsion systems, such as paper labels and packaging tapes. They improve peel strength on difficult-to-bond surfaces, such as plastic films and biaxially oriented polypropylene (BOPP) films. The table below shows the typical characteristics of adding 40 parts rosin ester. It can be noted that initial tack and peel strength are significantly increased, but shear strength is reduced. This is due to a decrease in modulus and softening. Tackifying resins can sometimes also reduce the cost of the final adhesive product. A typical addition amount is 30-40% by weight. Tackifying resins with melting points significantly higher than the polymer's glass transition temperature can improve adhesive strength but reduce tackiness. Resins with lower melting points can increase adhesive tack and flexibility but sacrifice creep and shear strength. Tackifying resins are responsible for regulating the initial tack, peel strength, and shear strength of adhesives, and a trade-off must be made among various aspects of the system. The Effect of Tackifying Resins on Tg Although tackifying resins lower the modulus and make the system more flexible, they can generally increase the glass transition temperature by reducing the rubber plateau. Since viscosity is measured by the energy required for failure, the adhesive needs a high modulus at both strain rate and strain amplitude during failure. Tackifying resins increase the glass transition temperature of the elastomer, giving the adhesive mixture a high modulus at high strain rates and room temperature. Therefore, tackifying resins increase the modulus at low temperatures, short times, and high frequencies, but decrease the modulus at high temperatures, long times, and low frequencies. Tackifying resins used in acrylic emulsions need to be compatible with the base polymer resin and the surfactant system. Pre-emulsified tackifying resins can be used in aqueous systems. Rosin and C5/C9 petroleum resins are common products. Sinograce Chemical produces water-based tackifying resins for use in acrylic emulsion systems and water-based rosin for use in various adhesives.