Categories
new blog
Characteristics of Acrylic Polyurethane Topcoat Acrylic polyurethane paint, formed by the reaction of hydroxyl-containing acrylic ester and aliphatic polyisocyanate such as HDI trimer, has a paint film with excellent hardness and flexibility, and good chemical resistance. Its outstanding weather resistance, high gloss, good drying properties, and fast surface drying without dust adhesion make it t...
Polyurethane materials are a general term for a class of macromolecular compounds that have urethane structures in their molecular structure. They are usually prepared by the polyaddition reaction of diisocyanates and polyols. Polyurethane polymers possess both polar functional groups that allow for physical cross-linking and non-polar and flexible chain segments. When used properly, these po...
The Secret to Non-Peeling Labels: How Adhesives Determine Label Lifespan In everyday packaging, label peeling is a common yet troublesome problem – not only affecting product appearance but also potentially raising consumer doubts about quality. But have you ever considered that a crucial science lies behind this: adhesives? Adhesives: The "Invisible Guardians" of Labels Adhesives a...
One component of self-adhesive label materials is the adhesive, also known as glue. The adhesive determines the label's stickiness and applicable scenarios. The adhesive is also the bonding layer between the label and the object it's applied to; its stickiness, temperature resistance, and magnetic adhesion directly affect the label's adhesion effect. It can be divided into the following categories...
Team Sinograce The Spring Festival is the most important time of the year for us in China—a time to reunite with family and celebrate new beginnings. As we prepare to welcome the Year of the Horse, we want to take a moment to thank you for being part of our journey. If you have any urgent inquiries during this period, please don't hesitate to drop us an email at sales@sinogracechem.com. We'll repl...
01 Polyurethane The structure of polyurethane is formed by the reaction of polyisocyanates (e.g., diisocyanate OCN-R-NCO) and polyols (e.g., diol HO-R-OH), where urethane segments are repeating structural units. Polyurethane structures have structures similar to amide and ester groups; therefore, the chemical and physical properties of polyurethane are between those of polyamides and polyesters. S...
Seeking a packaging seal that balances both strength and eco-friendliness? Water-based acrylics offer the perfect "best-of-both-worlds" solution! As a core raw material for sealing adhesives, they are widely utilized across diverse packaging applications—including food, express delivery, and daily chemical products. Whether applied to paper boxes, plastic bags, or composite film materials, they en...
Product Recommendation | Dimethylol Butyric Acid (DMBA) Dimethylol Butyric Acid (DMBA) CAS No.:10097-02-6 Molecular Formula:C6H12O4 Molecular Weight:148.16 Physicochemical Properties:White crystalline solid Melting Point:108–115 °C; soluble in water, methanol, acetone, etc. Applications of Dimethylol Butyric Acid (DMBA) Core Function: A hydrophilic chain extender for water-based polyurethane...
As environmental regulations tighten globally and end users increasingly prioritize health and sustainability, the adhesive industry is undergoing a fundamental shift from solvent‑based to eco‑friendly alternatives. Among the various solutions, waterborne acrylic emulsion has emerged as a leading material due to its excellent balance of performance, versatility, and environmental compatibility. Wa...
If you are a manufacturer of—or a user of—hot-melt adhesives, you are well aware that while most hot-melt pressure-sensitive adhesives (HMPSAs) appear virtually identical in appearance, the specific manufacturing processes employed during their blending result in distinct sets of advantages and disadvantages. Hot-melt pressure-sensitive adhesives are complex mixtures composed of SBC (Styrene-Butad...
1. Hot Melt Adhesives – Coating Methods Hot melt adhesives are 100% solids, require heating to melt, and solidify upon cooling. They are solvent‑free and cure quickly, making them ideal for high‑speed production. Roll Coating How it works: Molten adhesive is transferred to the substrate via a heated gravure or applicator roll. Coating thickness is controlled by the roll’s surface pattern. Applicat...
Many people find themselves torn when selecting materials: since both are used for coatings, which one offers greater durability? Which is the more suitable choice for waterproofing during renovation? In reality, neither possesses an absolute advantage over the other; the key lies in the specific requirements of the application scenario. Today, we will clarify the core distinctions between the two...
Choose the Right Adhesive: Making Packaging Both Beautiful and Durable The aesthetic appeal and durability of printed packaging hinge on a crucial—yet often overlooked—element: the adhesive used. From the everyday shipping boxes and food packaging we receive, to high-end gift sets for tobacco and spirits, every bonded joint relies on the support of specialized adhesives. Selecting the right adhesi...
Varnishing (Gloss Varnish / Matte Varnish) The primary difference between gloss varnish and matte varnish lies in their level of brightness. Varnishing involves applying a layer of clear lacquer over the printed surface to provide waterproofing, scratch resistance, and a high-gloss effect. It offers superior abrasion resistance and stain resistance, effectively preventing the surface ink from bein...
Water-based Clear Primer for Printing: Addressing Insufficient Ink Adhesion on Gold and Silver Cardboard The use of a water-based clear primer on gold and silver cardboard to resolve issues of insufficient ink adhesion is achieved primarily through the following mechanisms: Improving Surface Tension The surface of gold and silver cardboard is typically smooth and possesses low ...
21
21
adminpages
sinograce chemical
Sinograce Chemical is professional technical enterprise providing solutions of surface materials and manufacturing of raw materials. Sinograce Chemical Company is composed of R&D center, Manufacture center, Quality control department, Market center and International trade department. We have been dedicating to research on excellent paint/coating, adhesive for over 15 years. And now still conti...
Room 1013, Building A5, Financial Port Center, Yangzijiang Road, Baohe District, Hefei City， Anhui province, China
+86 0551 63459511
Copyright © 2015-2026 Anhui Sinograce Chemical Co., Ltd..All Rights Reserved.
top
English
français
русский
español
العربية