Vinyl Acetate Paper Adhesive Resin SR 321 Export from Iran

1. Introduction to the Supply Chain Department at Sahi Rasa Company

The Supply Chain Department at Sahi Rasa Company has developed a specialized expertise in the export of polymer dispersions and resin products, and SR® 321 represents a cornerstone vinyl acetate adhesive binder in its portfolio for the paper and packaging industries. The department understands that modern paper and packaging adhesives must deliver more than simple bonding; they require precise control over viscosity, adhesion development speed, flexibility, and compatibility with other adhesive components. SR® 321, with its carefully engineered vinyl acetate backbone and polyvinyl alcohol stabilization system, addresses these demands with a level of performance that meets the rigorous specifications of high-speed packaging lines and laminating operations.

The department sources SR® 321 through qualified polymer manufacturers who operate under strict quality management systems. The product is manufactured through emulsion polymerization of vinyl acetate, followed by plasticization with dibutyl phthalate and precise adjustment of solids content, viscosity, and pH. Each batch is tested against specification limits for solids content, viscosity, and pH before release. The department maintains rigorous incoming quality control and provides Certificates of Analysis with every shipment. The product is tested according to ISO 3251 for solids content, ISO 2555 for viscosity, and ISO 976 for pH value, ensuring full compliance with international standards.

For clients in Afghanistan, the Kurdistan Region, Iraq, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, Syria, Oman, Kuwait, Jordan, and Russia, the Supply Chain Department at Sahi Rasa Company offers a reliable and flexible supply of SR® 321 vinyl acetate adhesive binder. The department's multilingual staff can communicate in English, Arabic, Turkish, Persian, and Russian, facilitating smooth transactions across the Middle East and Central Asia. The department also has experience navigating the regulatory requirements of each destination country, including import permits, safety data sheets, and customs documentation, ensuring that shipments clear customs without unnecessary delays.

Disclaimer: Please note that the analyses and specifications provided in this document are indicative and may vary depending on the specific product available at the time of order. For exact analysis and specifications tailored to your requirements, please contact us directly.

2. Product Overview

SR® 321 is an aqueous dispersion based on vinyl acetate, plasticized with dibutyl phthalate and stabilized with polyvinyl alcohol. It is a high-performance adhesive binder specifically designed for the preparation of adhesives for paper and cardboard, including laminating adhesives for these materials. The product is delivered as a white liquid with a solids content of 49 ± 1% and a viscosity of 65000 ± 15000 mPa·s (Brookfield RVT, Spindle 7, 20 rpm).

Vinyl acetate dispersions such as SR® 321 have become the backbone of modern paper and packaging adhesive technology. Unlike traditional starch-based or animal glue adhesives, vinyl acetate dispersions offer faster setting speeds, better water resistance, improved flexibility, and compatibility with a wide range of substrates. SR® 321, with its dibutyl phthalate plasticization and polyvinyl alcohol stabilization, delivers excellent adhesion to paper, cardboard, and other cellulosic substrates, making it a direct competitor to conventional adhesive systems in packaging applications.

The primary applications of SR® 321 include:

Paper Adhesives: Used as a primary binder in adhesives for paper bonding, envelope manufacturing, and paper bag production.

Packaging Adhesives: Used in adhesives for cardboard box sealing, carton forming, and case sealing.

Laminating Adhesives: Used in laminating adhesives for paper-to-paper, paper-to-board, and paper-to-film bonding.

Bookbinding Adhesives: Used in adhesives for book spine gluing and page bonding.

Wood Glue: Used as a component in wood glue formulations for furniture and joinery.

Label Adhesives: Used in adhesives for paper labels and stickers.

The global paper and packaging adhesives market is projected to maintain steady growth, driven by increasing e-commerce activity, growth in food and beverage packaging, and demand for sustainable packaging solutions. In the Middle East and Central Asia, paper and packaging production is expanding rapidly, driving demand for high-quality vinyl acetate adhesive binders. The Supply Chain Department at Sahi Rasa Company is positioned to serve this growing demand by offering reliable access to high-quality SR® 321 at competitive prices.

3. Physical Specifications Table

Note: Film properties measured after drying 1hr at 60°C, then 24hr at 23 ± 2°C and 50 ± 5% relative humidity (ISO 3270). Tested at 23 ± 2°C and 50 ± 5% relative humidity (ISO 3270).

4. Chemical Specifications Table

5. Industries & Factories Using This Product

SR® 321 vinyl acetate adhesive binder is utilized across a diverse range of paper and packaging industries. The following industries and their factories are the primary users of this product:

Paper and Packaging Manufacturers: Paper adhesive producers, envelope manufacturers, paper bag factories, and packaging adhesive companies use SR® 321 as a primary binder for paper bonding and packaging applications. Factories producing cartons, boxes, and corrugated board rely on SR® 321 for fast-setting and reliable adhesion.

Cardboard Box Factories: Corrugated box manufacturers, folding carton producers, and rigid box factories use SR® 321 in adhesives for box sealing, carton forming, and case sealing. The product's ability to form strong bonds on cellulosic substrates makes it ideal for high-speed packaging lines.

Bookbinding Plants: Bookbinding companies, print finishing plants, and publication binderies use SR® 321 in adhesives for book spine gluing, page bonding, and cover attachment. The product's flexibility and adhesion to paper and board are particularly valuable in bookbinding applications.

Label and Sticker Manufacturers: Label producers, sticker factories, and tag manufacturers use SR® 321 in adhesives for paper labels and stickers. The product's clarity and non-yellowing properties are important for label applications where appearance matters.

Woodworking Shops: Furniture manufacturers, joinery workshops, and woodworking shops use SR® 321 as a component in wood glue formulations for furniture assembly and wood bonding. While not recommended for outdoor use, it is suitable for interior wood applications.

Laminate Manufacturers: Paper laminate producers, decorative laminate manufacturers, and laminating companies use SR® 321 in laminating adhesives for paper-to-paper, paper-to-board, and paper-to-film bonding. The product's flexibility and adhesion are critical for laminate performance.

Envelope and Bag Factories: Envelope manufacturers, paper bag factories, and shopping bag producers use SR® 321 in adhesives for side seam bonding, bottom sealing, and handle attachment.

6. Key Properties & Advantages

SR® 321 offers a distinctive combination of properties that make it a superior choice for paper and packaging adhesive applications:

Fast Adhesion Development: The adhesive strength of SR® 321 develops quickly after application, making it ideal for high-speed packaging and bookbinding lines where rapid bonding is essential.

Excellent Adhesion to Cellulosic Substrates: The vinyl acetate backbone provides strong adhesion to paper, cardboard, and other cellulosic substrates, ensuring reliable bonding even under stress.

Clear and Flexible Films: Dried films are clear and flexible, allowing for visual inspection of bonded areas and accommodating dimensional changes in paper and board.

Tack-Free Surface: The tack-free surface of dried films prevents blocking and sticking during storage and handling.

Good Compatibility with Plasticizers: The product has good compatibility with commonly used phthalates and benzoate plasticizers, allowing formulators to adjust the flexibility and adhesion characteristics as needed.

Compatibility with Other Components: SR® 321 can be used in combination with other homopolymer grades, starch derivatives, and synthetic latexes, giving formulators flexibility in adhesive design.

Viscosity Adjustability: Various thickeners, including Tylose® grades and acrylic thickeners such as SR® 103, can be used to adjust the viscosity and processing characteristics of adhesives based on SR® 321.

Environmentally Friendly: As a waterborne dispersion, SR® 321 enables the formulation of low-VOC adhesives, helping manufacturers comply with increasingly strict environmental regulations in target markets.

7. Chemical Formula / Size & Packaging Specifications

SR® 321 is a polymer dispersion, not a single chemical compound, and therefore does not have a simple molecular formula. Its polymer backbone is based on polyvinyl acetate. The general repeating unit of polyvinyl acetate is:

General Structure: [-CH₂-CH(OCOCH₃)-]ₙ

CAS Number: 9003-20-7 (polyvinyl acetate)

Packaging Options:

200 L standard steel or plastic drums

1000 L IBC (Intermediate Bulk Container) totes

Bulk tanker deliveries available on request

Custom packaging upon request

Storage Conditions: Store between 0°C and 35°C, protected from frost and direct sunlight. Shelf life: 6 months from date of production when stored in unopened containers.

8. Available Grades, Sizes, Qualities & Custom Colors

Quality Grades: Industrial Grade, Professional Grade, Premium Grade.

Custom Options: Custom solids content, custom viscosity, custom pH adjustment, and custom plasticizer levels available upon request. Private labeling available for large-volume orders.

9. Sahi Rasa Supply Chain Department Services for International Factories

The Supply Chain Department at Sahi Rasa Company offers a comprehensive suite of services designed to support international factories in procuring SR® 321 and other polymer dispersions. Each service is delivered with precision, professionalism, and a focus on client success.

Monthly & Weekly Supply Planning

The department collaborates with client factories to establish monthly and weekly supply schedules based on production forecasts, inventory levels, and lead times. Using advanced demand forecasting tools and historical consumption data, the department predicts demand for SR® 321, reserves production capacity, and coordinates shipments to ensure that raw material arrives exactly when needed. For clients in Turkey, Iraq, Afghanistan, and Central Asia, the department also takes into account seasonal factors, such as peak packaging seasons and weather conditions affecting transportation, to optimize delivery schedules. This planning approach minimizes stockouts, reduces emergency orders, and allows clients to optimize working capital.

Sourcing & Procurement

The department's procurement team has established long-term relationships with qualified polymer manufacturers who operate under strict quality management systems. This diversified sourcing strategy ensures that the department can secure high-quality SR® 321 at competitive prices, even during periods of market volatility. The procurement team conducts rigorous supplier evaluations, including audits of production facilities, testing of product samples, and verification of certifications. Contracts are negotiated to secure favorable terms, including flexible payment options, guaranteed quality, and reliable delivery. By centralizing procurement through the department, clients gain a single point of accountability and avoid the complexities of dealing with multiple suppliers.

Sample Dispatch

Before committing to bulk orders, clients can request samples of SR® 321 for laboratory testing and production trials. The department arranges for samples to be dispatched via courier or air freight, typically within 5 to 10 business days. Each sample is accompanied by a Certificate of Analysis (COA), Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and other relevant documentation. Clients can use these samples to evaluate adhesion, flexibility, setting speed, and compatibility with their existing adhesive formulations. The department's technical team is available to assist with sample evaluation and to answer any technical questions.

Custom Manufacturing (OEM/ODM)

For clients with specific requirements, the department offers custom manufacturing services. This includes custom solids content, custom viscosity adjustment, custom pH ranges, and private-label packaging. The department coordinates with qualified polymer manufacturers to produce SR® 321 variants that meet the client's exact specifications. Whether the client needs a modified vinyl acetate dispersion for a specialized adhesive application or a private-label product for their local market, the department can deliver. Minimum order quantities apply for custom production runs, and lead times vary depending on the complexity of the request.

Pre-Shipment Quality Control

Quality is paramount at the Supply Chain Department at Sahi Rasa Company. Before any shipment leaves the supplier, the department's quality control team conducts a thorough inspection. This includes verification of solids content, viscosity, pH, and film properties against the agreed specification. Samples are drawn from different parts of the batch to ensure homogeneity. The QC team also checks packaging integrity, labeling, and documentation. A detailed inspection report is prepared and shared with the client, along with retained samples for future reference. This proactive approach prevents non-conforming material from being shipped and reduces the risk of claims at destination.

Loading & Handling

Proper loading and handling are critical to maintaining the quality of SR® 321 during transportation. The department supervises all loading operations to ensure that drums and IBC totes are properly secured and protected from damage. Loading crews are trained in safe handling practices and use appropriate equipment, such as forklifts and pallet jacks, to prevent damage to packaging. The department also ensures that containers are clean, dry, and free from contaminants before loading. For shipments to cold climates, the department takes precautions to prevent freezing during transit.

Export Documentation

The Supply Chain Department at Sahi Rasa Company prepares and manages all export documentation required for SR® 321 shipments. This includes:

Commercial Invoice

Packing List

Certificate of Origin (COO)

Certificate of Analysis (COA)

Material Safety Data Sheet (MSDS)

Technical Data Sheet (TDS)

Bill of Lading or Air Waybill

Insurance Certificate (upon request)

Export Declaration

The department's documentation team ensures that all documents are accurate, complete, and compliant with the regulations of both Iran and the destination country. This minimizes the risk of customs delays and ensures smooth clearance.

International Transportation

The department arranges international transportation for SR® 321 via sea, air, or land, depending on the destination and urgency. For bulk shipments, sea freight is the most cost-effective option, with FCL (Full Container Load) and LCL (Less than Container Load) services available. The department works with reputable shipping lines and freight forwarders to secure competitive rates and reliable schedules. For landlocked destinations such as Afghanistan, Tajikistan, and Uzbekistan, the department organizes multimodal transport, combining sea and land routes. For urgent orders, air freight is available, although at a higher cost. The department also offers door-to-door delivery, coordinating with local partners at the destination to ensure that the cargo reaches the client's facility.

Export Customs Clearance

The department's customs brokers handle all export clearance formalities at Iranian ports and border crossings. This includes the preparation of export declarations, payment of export duties (if applicable), and compliance with Iranian export regulations. The department maintains close relationships with customs authorities to expedite the clearance process and minimize delays. For clients requiring specific export certifications or permits, the department can arrange these as well.

Import Customs Clearance

For clients who require assistance at the destination, the department can arrange import customs clearance through its network of trusted partners in Iraq, Turkey, Afghanistan, and Central Asian countries. This service includes tariff classification, duty payment coordination, and release of goods from the port or border. The department's partners are experienced in the local customs procedures and can ensure a smooth and efficient clearance process. This end-to-end service allows clients to focus on their core operations while the department handles the logistics.

On-Site Technical Team Deployment

For large-scale or technically complex applications, the Supply Chain Department at Sahi Rasa Company can deploy a technical team to the client's factory. This team can assist with the integration of SR® 321 into the client's adhesive formulation, provide guidance on compounding with other dispersions, and help troubleshoot any production issues. The technical team can also provide on-the-job training to client personnel and assist with optimizing the formulation for the client's specific equipment and conditions.

Training & Knowledge Transfer

The department offers training and knowledge transfer programs for client personnel. These programs cover a range of topics, including proper storage and handling of SR® 321, formulation guidelines for paper and packaging adhesives, compounding techniques, and troubleshooting common issues. Training can be delivered on-site at the client's facility or remotely via video conferencing. The department also provides written documentation, including formulation starting point formulas and best-practice guidelines. By empowering client personnel with knowledge, the department helps to ensure that SR® 321 is used effectively and safely.

10. Why Choose the Supply Chain Department at Sahi Rasa Company?

Choosing the Supply Chain Department at Sahi Rasa Company as your supplier of SR® 321 vinyl acetate adhesive binder offers numerous advantages:

Reliable Iranian Supply: The department has access to qualified polymer manufacturers and can secure a steady supply of SR® 321 even during periods of high demand or market volatility.

Quality Assurance: The department's rigorous quality control procedures, including pre-shipment inspection and certification, ensure that every shipment meets the client's specifications.

Flexible Logistics: With options for sea, air, and land transport, as well as door-to-door delivery, the department can accommodate any destination and timeline.

Comprehensive Services: From sampling and custom manufacturing to technical support and training, the department offers a full range of services that go beyond simple product supply.

Competitive Pricing: By leveraging efficient procurement strategies and consolidating shipments, clients benefit from competitive pricing without compromising on quality.

Regional Expertise: The department has deep knowledge of the markets in Afghanistan, Iraq, Kurdistan, Tajikistan, Uzbekistan, Armenia, Georgia, Turkey, Syria, Oman, Kuwait, Jordan, and Russia. This expertise allows it to navigate local regulations, logistics challenges, and cultural nuances effectively.

Customer-Centric Approach: The department is committed to building long-term relationships with its clients. It listens to their needs, responds quickly to inquiries, and continuously seeks ways to improve its services.

11. Ordering & Contact Information

International customers can place orders through the Request for Quotation (RFQ) form located at the bottom of this page. The expert team at the Supply Chain Department at Sahi Rasa Company will respond to all inquiries as soon as possible, providing complete information on pricing, delivery schedules, shipping terms, and export documentation.

Whether you require a trial order of SR® 321 for laboratory evaluation, a bulk shipment for adhesive production, or a long-term supply contract for your packaging factory, the Supply Chain Department at Sahi Rasa Company is ready to support your procurement from Iran. Contact us today to discuss your requirements and receive a tailored quotation.