- Overview
- Product Overview
- Key Characteristics
- Comparison
- Application Guide
- Company Profile
- FAQ
Basic Info.
Packaging & Delivery
Product Description
Polyvinyl chloride (PVC) paste Resin , as the name implies, is that this resin is mainly used in paste form. People often use this type of paste as plastisol, which is a unique liquid form of PVC plastic in its unprocessed state. . Paste resins are often prepared by emulsion and micro-suspension methods.
Table 1: Classification by Viscosity Grade
| Viscosity Grade | Characteristics | Typical Values (Brookfield, 25°C) | Applications |
| Low Viscosity | Excellent fluidity, suitable for thin coatings | 3,000-10,000 mPa·s | Artificial leather surface, wallpaper |
| Medium Viscosity | Balanced flow and moldability | 10,000-30,000 mPa·s | Gloves, tool handles, automotive seals |
| High Viscosity | Thick paste, ideal for foaming or complex molds | 30,000-100,000 mPa·s | Foamed flooring, shoe soles |
Table 2: Classification by Molecular Weight (K-value)
| K-value Range | Characteristics | Applications |
| Low (K=60-65) | Lower molecular weight, high fluidity | Soft toys, low-strength coatings |
| Medium (K=65-70) | Balanced strength and processability | Artificial leather, automotive interiors |
| High (K=70-80) | High mechanical strength, wear resistance | Industrial flooring, foamed products |
Table 3: Classification by Production Process
| Process | Characteristics | Applications |
| Microsuspension | Uniform particle size, high transparency | Transparent coatings, glossy surfaces |
| Emulsion | Smaller particles, high flexibility | Elastic seals, complex-shaped products |
Table 4: Classification by Application Field
| Application Grade | Characteristics | Examples |
| General Purpose | Cost-effective for standard products | Toys, packaging materials |
| Foaming Specialty | High compatibility with foaming agents | Foamed wallpaper, automotive soundproofing |
| Medical Grade | High purity, low migration, FDA-compliant | Medical gloves, disposable tubes |
| Weather-resistant | UV stabilizers added for outdoor use | Inflatable products, automotive coatings |
Polyvinyl chloride paste resin has a fine particle size, and its texture is like talc, with immobility. The polyvinyl chloride paste resin is mixed with a Plasticizer and then stirred to form a stable suspension, which is then made into PVC paste, or PVC plastisol, PVC sol, and it is in this form that people are used to process the final Products. In the process of making paste, various fillers, diluents, heat stabilizers, foaming agents and light stabilizers are added according to the needs of different products.
PVC Resin vs. PVC Paste Resin
| Comparison Criteria | PVC Resin | PVC Paste Resin |
| Chemical Properties | ||
| Molecular Weight (K-value) | 55-75 (high molecular weight, uniform chains) | 60-80 (medium-low molecular weight, branched chains) |
| Plasticizer Absorption Capacity | <10% (dense surface, low absorption) | 60-100% (porous structure, high absorption) |
| Thermal Stability | Requires high-temperature processing (160-200°C), relies on stabilizers | Low-temperature curing (120-180°C), requires localized heat control |
| Solvent Resistance | High (rigid structure, no plasticizer migration) | Moderate (plasticizer migration may cause swelling) |
| Environmental Compliance | Low risk (typically no plasticizers) | Requires attention to plasticizer types (e.g., restricted phthalates) |
| Production Process | ||
| Polymerization Method | Suspension or bulk polymerization | Microsuspension or emulsion polymerization |
| Particle Characteristics | Large particles (100-150 μm), smooth surface | Ultrafine powder (0.1-2 μm), porous structure |
| Physical Form | ||
| Appearance | White powder or granules | Ultrafine powder, forms a paste when mixed with plasticizers |
| Flowability | Relies on high-temperature melt flow | Paste-like flow at room temperature (plasticizer-dependent) |
| Processing Methods | ||
| Temperature Requirements | High-temperature melting (160-200°C) | Room-temperature mixing, heated curing (120-180°C) |
| Typical Processes | Extrusion, injection molding, calendering | Coating, dipping, casting, foaming |
| Additives Required | Stabilizers, lubricants, fillers | Plasticizers, stabilizers (compatible with plasticizers) |
| Application Fields | ||
| Primary Products | Rigid or semi-rigid products | Soft, flexible, or complex-shaped products |
| Typical Applications | Pipes, window profiles, sheets, cable jackets | Artificial leather, gloves, toys, automotive seals, foamed products |
| Core Advantages | High strength, corrosion resistance, low cost | High flexibility, complex molding capability, low-temperature processing |
The development of the PVC paste resin industry provides a new type of liquid material that becomes a polyvinyl chloride product only by heating. This kind of liquid material is easy to configure, stable in performance, easy to control, easy to use, excellent in product performance, good in chemical stability, has a certain mechanical strength, easy to color, etc., so it is widely used in artificial leather, vinyl toys, soft trademarks, Production of wallpapers, paints and coatings, foamed plastics, etc.
1. Consumer Goods Industry
| Application Area | Specific Uses | Advantages |
| Toys | Inflatable pools, balls, dolls, soft models | 1.High flexibility, tear-resistant 2.Low-temperature processing for complex shapes 3.Complies with child safety standards |
| Household Items | Anti-slip mats, shower curtains, tablecloths | 1.Water and chemical-resistant 2.Easy-to-clean surface with diverse patterns |
| Packaging | Transparent flexible packaging, cosmetic bottle seals | 1.High transparency, printable 2.Excellent sealing performance |
2. Automotive Industry
| Application Area | Specific Uses | Advantages |
| Interior Parts | Dashboard coatings, door panel surfaces, steering wheel covers | 1.Soft touch, wear-resistant 2.Weather-resistant 3.Conforms to complex curves |
| Sealing Strips | Window seals, door waterproof strips | 1.High elasticity, long-term compression resistance 2.Aging-resistant (-30°C to 120°C) |
| Soundproofing | Foamed soundproof pads, engine compartment insulation | 1.Lightweight, excellent sound absorption 2.Flame-retardant |
3. Construction & Decoration
| Application Area | Specific Uses | Advantages |
| Wallpaper/Flooring | Foamed wallpaper, PVC flooring surfaces, carpet backing | 1.Fine patterns, 3D effects 2.Wear and stain-resistant 3.Foam structure for thermal and sound insulation |
| Waterproofing | Roof coatings, basement damp-proof membranes | 1.Seamless adhesion, water pressure-resistant 2.Root puncture-resistant |
| Decorative Films | Furniture films, wood-grain coatings on metal | 1.High-fidelity textures 2.Scratch-resistant, easy to clean |
4. Medical & Protective Equipment
| Application Area | Specific Uses | Advantages |
| Medical Products | Disposable gloves, blood bags, catheters | 1.Biocompatible 2.High transparency, easy to sterilize 3.No plasticizer migration risk |
| Protective Gear | Industrial gloves, protective clothing coatings, chemical mask seals | 1.Acid/alkali and puncture-resistant 2.Flexible and comfortable for prolonged wear |
5. Electronics & Industrial
| Application Area | Specific Uses | Advantages |
| Wires & Cables | Insulation sheaths, high-temperature cable coatings | 1.Flame-retardant 2.Stable voltage and insulation performance |
| Electronic Packaging | Anti-static trays, protective coatings for electronic components | 1.Conductive/anti-static 2.Chemical corrosion-resistant |
| Industrial Coatings | Anti-corrosion coatings for metal pipes, conveyor belt surfaces | 1.Strong adhesion, wear and corrosion-resistant 2.Thick-coating, one-step molding |
6. Textile & Apparel
| Application Area | Specific Uses | Advantages |
| Artificial Leather | Shoes, bags, sofa fabrics | 1.Leather-like texture, breathable 2.Recyclable |
| Functional Clothing | Raincoat waterproof layers, flame-retardant coatings for firefighting suits | 1.Water pressure-resistant 2.Flame-retardant, high-temperature resistant |
1.Q:How's the quality?
A:We are the source factory, quality is guaranteed.
2.Q:When does it ship?
A:We have standardized processes to ship as fast as possible.
3.Q:How do you protect the after-sales?
A:We keep samples of each batch and support returns and technical traceability in case of quality problems.

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