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For businesses involved in adhesive manufacturing, selecting the correct grade of Polyvinyl Alcohol (PVA) is paramount to achieving desired product performance. As a leading PVA manufacturer and supplier, we understand the critical role this versatile polymer plays in creating effective water-based adhesives. This guide will help you navigate the choices when you decide to buy PVA for your specific needs.
The primary factors influencing PVA's performance in adhesives are its molecular weight and degree of hydrolysis. Molecular weight, often indicated by solution viscosity, affects viscosity, shear value, and adhesion. Higher molecular weights generally lead to thicker solutions and stronger films. The degree of hydrolysis, which refers to the replacement of acetate groups with hydroxyl groups, significantly impacts water resistance, film properties, and stability.
Partially hydrolyzed PVA grades (typically 87-89% hydrolysis) exhibit better adhesion to hydrophobic surfaces and offer a balance of properties suitable for many general-purpose adhesives used in paper and packaging. Fully hydrolyzed grades (98-99% hydrolysis) provide greater water resistance and tensile strength, making them ideal for applications requiring enhanced durability. When you choose to purchase PVA from our facility, you can be assured of these critical specifications being met.
For optimal results, proper dissolution is key. While some fine particle size grades may be more cold-water soluble, most PVA grades require heating to achieve complete dissolution. As a professional PVA supplier, we recommend dispersing the PVA powder in water with adequate agitation and then heating the mixture to between 85-96°C (185-205°F) and holding for about 30 minutes. This process ensures the PVA fully dissolves, yielding a homogenous adhesive base.
When sourcing Polyvinyl Alcohol, consider partnering with a reputable manufacturer like us. We offer a comprehensive range of PVA grades, ensuring consistent quality, competitive pricing, and reliable supply. Whether you are looking to buy PVA for wood glues, paper laminations, or specialized industrial adhesives, our team can assist you in finding the perfect solution. Contact us today to discuss your requirements and to request samples of our high-quality PVA products.
Manufacturing Facilities
Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.
