Strength and Hardness Enhancing Processing Aid DB-1 for PVC Plastic Steel Partition Board

Product Name：
Strength and Hardness Enhancing Processing Aid DB-1 for PVC Plastic Steel Partition Board

Special Instruction:

Product Introduction：

1. Product Overview：
DB-1 is a high-performance processing aid specifically formulated to enhance the strength and hardness of PVC extrusion products. With an active content of 98%, it delivers exceptional reinforcement while maintaining excellent processing characteristics. This additive is widely used in rigid PVC profiles, sheets, pipes, and furniture components where high mechanical strength, surface hardness, and dimensional stability are essential. DB-1 enables manufacturers to achieve thinner wall sections without compromising performance, reducing material consumption and improving overall product competitiveness.

2. Product Principle：
DB-1 functions by promoting uniform fusion and plasticization of PVC resin during extrusion. Its high molecular weight structure intertwines with PVC chains, creating a reinforced network that increases rigidity and surface hardness. The additive also improves melt strength and elasticity, enabling stable processing at higher line speeds while maintaining dimensional accuracy. By enhancing melt homogeneity, DB-1 reduces internal stress and prevents defects such as warping, sink marks, and surface roughness. The result is a consistent, high-quality extruded product with improved mechanical properties and long-term durability.

3. Performance Characteristics：
As a dedicated strength and hardness enhancer, DB-1 significantly increases the flexural modulus and surface hardness of PVC products. Typical improvements range from 15–30% in flexural modulus and 20–40% in surface hardness, depending on dosage and base formulation. It improves dimensional stability and reduces deformation under load, with creep resistance improved by up to 40% in standard tests. The additive maintains good transparency in applicable formulations and does not negatively impact surface finish. Its low volatile content (Vdaf ≤1%) ensures clean processing without plate-out or die buildup, while the controlled particle size distribution guarantees rapid dispersion and consistent performance throughout the production run.

4. Usage and Dosage：
Recommended addition level is 2–8 phr based on total formulation weight. For maximum reinforcement in demanding applications such as load-bearing profiles, higher dosages toward 8 phr provide the greatest benefit. For general extrusion applications requiring moderate strength improvement, 4–6 phr typically delivers an optimal balance of properties and cost. Higher dosages provide increased reinforcement effects and should be optimized through trials to achieve specific performance targets.

Product Advantages:

1. Significant Strength Enhancement
DB-1 substantially increases the tensile strength and flexural modulus of PVC extrusion products. This reinforcement allows for thinner wall sections without compromising mechanical performance, enabling material savings and lighter products that are easier to handle and install.

2. Improved Surface Hardness
The additive enhances surface hardness and scratch resistance, making products more durable during handling, installation, and service. Surface hardness increases of 20–40% on the Shore D scale are typical, significantly reducing marring, scratching, and wear in applications where appearance matters.

3. Excellent Dimensional Stability
DB-1 reduces creep and deformation under load, ensuring products maintain their shape and dimensions over time. This improves long-term performance in structural applications such as window profiles, furniture components, and construction profiles where maintaining precise dimensions is critical.

4. High Active Content Efficiency
With 98% active content, DB-1 delivers maximum reinforcement effect per unit weight, making it a cost-effective solution for strength enhancement requirements. The high purity also means fewer impurities that could affect processing or final product properties, ensuring reliable, consistent results batch after batch.

5. Enhanced Melt Strength and Processing Stability
DB-1 improves melt strength and elasticity, enabling stable extrusion at higher line speeds. It reduces melt pulsation and flow instability, resulting in consistent product dimensions and surface quality.

6. Reduced Equipment Wear and Energy Consumption
By improving melt flow and reducing friction, DB-1 lowers extrusion torque and energy consumption. This extends the service life of screws, barrels, and dies while reducing maintenance costs.

7. Clean Processing with Minimal Plate-Out
Low volatile content (Vdaf ≤1%) ensures clean processing with minimal smoke, odor, or die buildup. This enables longer production runs, reduced cleaning downtime, and consistently high surface quality.

8. Versatile Across Multiple PVC Extrusion Applications
DB-1 performs effectively in a wide range of rigid PVC extrusions, including profiles, pipes, sheets, and furniture components, providing formulation flexibility and consistent performance.

General instructions:

Packing: 25 kg/bag
Storage: Conventional storage
Processing: Valid for 2 years
Note: Store in a cool, dry warehouse away from heat, sunlight, moisture, and incompatible substances like acids or alkalis.

Applications：

1. PVC Rigid Profiles
DB-1 is ideal for rigid PVC profiles requiring high strength and hardness, such as window frames, door profiles, and structural components. It ensures profiles maintain their shape under mechanical and thermal stress while resisting surface damage during installation and cleaning.

2. PVC Sheets and Panels
In PVC sheets for construction and industrial applications, DB-1 enhances rigidity and surface hardness. This improves resistance to indentation from point loads and impact damage, while maintaining the flatness and dimensional stability required for professional installation.

3. PVC Pipe and Conduit
For pressure pipes and electrical conduits, DB-1 increases hoop strength and crush resistance, ensuring reliable performance in demanding installations such as buried applications, concrete encasement, and high-traffic areas.

4. PVC Furniture Components
In furniture applications such as table legs, chair frames, and cabinet components, DB-1 provides the necessary strength and hardness for load-bearing applications while maintaining good surface quality for aesthetic appeal.

5. PVC Window and Door Profiles
DB-1 enhances the durability and long-term stability of window and door profiles. It prevents creep under load and thermal cycling, ensuring sealing performance and weatherability for exterior applications.

6. Highly Filled PVC Compounds
In formulations with high filler content, DB-1 improves filler dispersion and maintains mechanical strength, enabling cost-effective production without compromising quality.

7. Recycled PVC Extrusion
For formulations containing recycled PVC, DB-1 compensates for reduced inherent stability and helps maintain consistent product quality and mechanical properties.

8. High-Speed Extrusion Lines
For high-output production, DB-1 provides the processing stability and reinforcement needed to maintain quality at line speeds exceeding 20 m/min.

Company Introduction：
Kunshan Maijisen Composite Material Co., Ltd. is a technology-driven manufacturer of innovative plastic processing additives. Our main product lines include stabilizers, acrylic impact modifiers, PVC processing aids, foaming regulators, foaming agents, lubricants, and other advanced chemical additives. Our products are widely used in WPC and PVC window profiles, foam boards (furniture boards, advertising boards, construction boards), WPC wall panels, WPC and SPC flooring, pipes and fittings, cables, and footwear.

RFQ：

1. What is the MOQ?
   MOQ is about 1 ton.

2. What are your payment terms?
   Payment terms: 100% T/T, or 30% T/T + 70% L/C.

3. What about delivery?
   Delivery time: 10 days.

4. Can you supply free samples?
   Yes, we can supply 200g–500g per product for testing.