Strength and Hardness Enhancing Processing Aid DB-1 for PVC Extrusion Products

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. This molecular reinforcement mechanism ensures that the enhanced properties are permanent and not simply the result of faster cooling or other temporary effects.

Performance Characteristics：
DB 1 is a professional strength and hardness enhancer for PVC. It notably boosts flexural modulus (15 30%) and surface hardness (20 40%), enhances dimensional stability, reduces deformation, and improves creep resistance by up to 40%. It preserves good transparency and surface finish, features low volatility (<1%), no plate out or die buildup, and ensures fast dispersion and stable performance in production.

Usage and Dosage：
The recommended addition level is 2–8% based on total formulation weight.For high strength load bearing profiles, use up to 8%; for general extrusion, 4–6% offers the best property cost balance.Higher dosages enhance reinforcement and should be optimized via testing to meet specific performance requirements.

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 of 10-20% and lighter products that are easier to handle and install. The strength enhancement is uniform throughout the product cross-section, ensuring consistent performance.

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. This is particularly valuable for products subject to frequent contact or abrasion.

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 for proper function and appearance.

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.

Packing: 25 kg/bag
Storage: Conventional storage
Processing: Valid for 2 years
Note: Store in cool, dry warehouse, avoid rain, moisture. When stored, it must be kept away from fire and heat sources, avoid exposure to sunlight, and prohibit direct contact with acids, alkalis, or mixing.

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. In window profiles, it ensures frames maintain their shape under mechanical and thermal stress while resisting surface damage during installation and cleaning. The improved rigidity also allows for slimmer profile designs without sacrificing performance.

2. PVC Sheets and Panels：
In PVC sheets for construction and industrial applications such as wall cladding, partitions, and tank linings, 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. The enhanced hardness also improves resistance to surface damage during installation.

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. The improved rigidity allows for elegant, slender designs that still meet structural requirements.

Maijisen is a technology-driven manufacturer of PVC additives, headquartered in Kunshan, Jiangsu. Since 2009, we have specialized in calcium zinc stabilizers, ACR processing aids, foaming regulators, and lubricants. Our products are used in PVC/WPC profiles, boards, flooring, pipes, cables, and footwear. With a 12,000 sqm production base and a 400 sqm R&D center in Yancheng, we are committed to innovation and quality.

1.What is the MOQ?

MOQ. is about 1ton.

2.What if your payment term?

Payment terms:100% by T/T ,30% by T/T and 70% by L/C;

3.What about the delivery ?

Delivery date:10 days.

4.Can you supply free samples?

Of course,we can supply you 200g~500g per product.