Low Initial Tack in Water-Based PSAs: When Should You Add a Rosin Tackifier Dispersion? A label lifts at the edges shortly after application. A tape bonds well to cardboard but peels easily from plastic packaging. When adhesive manufacturers encounter these problems, they need to check the substrate and processing conditions, as well as whether the formulation provides enough tack and peel strength. Water-based rosin tackifier dispersions are commonly used in water-based adhesives. When the base polymer forms a film properly but does not provide the required adhesion, a compatible tackifier dispersion can help adjust its performance. What Is the Difference Between Low Tack, Low Peel Strength, and Poor Holding Power? Customers may describe all three as “poor adhesion,” but each calls for a different approach. Problem Property to Check Role of the Tackifier Dispersion Labels lift immediately and require repeated pressing Initial tack A suitable tackifier can improve adhesion after brief contact Tape peels off easily after application Peel strength Can improve peel adhesion to the target substrate Labels or tape slip under a sustained load Holding power and cohesive strength Adding more tackifier alone may not solve the problem; the base polymer and overall formulation need to be checked Initial tack describes how readily the adhesive bonds after brief contact. Peel strength measures the force required to remove a label or tape. Holding power describes the adhesive’s ability to resist movement under a sustained load. Identifying which property is insufficient helps guide formulation changes. How Does a Water-Based Rosin Tackifier Dispersion Work? Water-based rosin tackifier dispersions are produced by dispersing rosin or modified rosin resin in water through an emulsification process. When blended with a compatible base polymer dispersion, they change the viscoelastic properties of the dried adhesive film, affecting its behavior during contact, bonding, and peeling. They are mainly used to improve tack and peel adhesion in self-adhesive labels, packaging tapes, and other water-based pressure-sensitive adhesives. Certain rosin ester dispersions are used to improve tack and peel adhesion to polyethylene and cardboard in acrylic and carboxylated SBR adhesive formulations. However, a tackifier cannot solve every bonding problem. Surface contamination, insufficient coating weight, or incomplete drying should be addressed first. When Should You Consider Adding One? One situation is when the adhesive forms a film properly, but labels do not stick readily after application and tack test results fall below requirements. Another is when the adhesive performs well on paper but provides insufficient peel strength on the customer’s plastic packaging. A third is when developing a new label or tape adhesive and the base polymer alone cannot provide the required tack. If the main problem is slippage under load, bond failure at elevated temperatures, or adhesive res...

As the Mid-Autumn Festival approaches, Sinograce Chemical sends warm wishes to our colleagues, customers, and partners around the world. From water-based acrylic emulsions and polyurethane dispersions to adhesives and functional coatings, our products reach different industries through the work we do together. Thank you for the trust and cooperation you have shared with us throughout the year. We wish you and your loved ones a joyful Mid-Autumn Festival, good health, and happiness together.

On September 11, 2026, Anhui Sinograce Chemical Co., Ltd. organized a team-building event for all employees at a countryside resort. The event was designed to strengthen communication and teamwork while giving everyone an opportunity to relax and enjoy nature. In the morning, employees were divided into groups to participate in a variety of fun team activities. Group members communicated actively and worked together to complete each task. The lively and relaxed atmosphere encouraged interaction among colleagues from different departments and further strengthened team spirit. At noon, each group worked together to prepare lunch. From washing and preparing ingredients to cooking and plating, everyone took on different responsibilities and supported one another. Afterward, the team gathered to enjoy the food they had prepared and share the memorable moments of the day. In the afternoon, employees enjoyed horseback riding, bumper cars and a live-action CS team challenge. These outdoor activities gave everyone time to relax, experience nature and build stronger connections with their colleagues. The event enriched the employees’ experience outside the workplace and reflected Sinograce Chemical’s positive, united and collaborative team culture. Moving forward, our team will bring the same energy and spirit of cooperation into our daily work. We will continue improving our products and services while providing customers with professional and efficient support.

Purchasing costs for water-based resins may rise as selected raw materials, energy and international transportation become more expensive. In September 2026, butyl acrylate prices moved higher in several markets. Some MDI suppliers also raised listed prices for selected products and regions. These materials are widely used in acrylic emulsions, pressure-sensitive adhesives and waterborne polyurethane dispersions. Transportation is adding further pressure. One global container freight index rose by approximately 9% over the past month, although changes varied significantly by route. Higher fuel costs, port congestion and disruption around major shipping routes may also increase freight, insurance and delivery expenses. For buyers, the impact is not limited to the resin quotation. The total landed cost may also include: Higher international freight charges Additional insurance or route-related costs Shorter quotation validity Longer or less predictable delivery times Extra inventory required to avoid production delays This does not mean that every water-based resin will increase by the same amount. The actual impact depends on the resin formulation, raw materials, destination and shipping route. Buyers planning large or time-sensitive orders should confirm the latest quotation, available stock, production schedule and freight cost. Earlier planning and closer communication with suppliers can help manage unexpected cost changes and delivery risks. Sinograce Chemical continues to monitor raw material and logistics conditions to provide customers with updated quotations, suitable resin recommendations and practical supply support. FAQ Are all water-based resin prices increasing? No. Price movements vary according to resin type, formulation, supplier and region. Why may the total purchasing cost increase? In addition to the product price, buyers may face higher freight, insurance, inventory and urgent-order costs. Which products may be more sensitive? Products that rely heavily on raw materials currently experiencing price or supply volatility may face greater cost pressure. What should buyers confirm before ordering? Buyers should check quotation validity, stock availability, production lead time, freight charges and expected delivery dates.