Tongxiang Small Boss Special Plastic Products Co.,ltd

PVC sealing strip granules are granular products made of polyvinyl chloride (PVC) resin as the base material, through scientific formula and professional plasticization process, and are specially designed for the production of various types of sealing strips. The product is compounded with plasticizers, calcium-zinc composite stabilizers, lubricants and elastic modifiers (such as EVA and CPE), which has excellent flexibility, elasticity and processing adaptability, and is suitable for extrusion molding process, and can produce door and window seals, automobile seals, home appliance waterproof strips, luggage sealants and other products.
Core performance characteristics
High elasticity and tightness
Shore A hardness can be customized (typically 40-80 degrees), with a tight fitting interface, effectively blocking air, water, and dust, and meeting the needs of sealing and shock absorption.
It has good resilience and no deformation during long-term compression, which is suitable for frequent opening and closing or long-term compression scenarios.
Weather and aging resistance
Added ultraviolet absorber and antioxidant, resistant to -25°C~70°C temperature difference, resistant to rain, snow, oil and ultraviolet erosion, outdoor service life up to 5-10 years.
It is highly resistant to chemical corrosion and is not easily eroded by common detergents, lubricating oils and other substances.
Ease of processing
Wide melting temperature range (160-190°C), stable fluidity, easy molding, can be matched with high-speed production lines, and support precise extrusion of complex cross-sections (such as lip type, cavity type, composite structure).
The color is adjustable (regular black, white, support custom color), the surface is smooth, and no secondary treatment is required.
Environmental protection and safety
It meets national standards such as GB/T 24267, is lead-free and cadmium-free, and can pass RoHS and REACH certification, which is suitable for scenarios with high environmental protection requirements such as food-grade packaging and medical devices.
Typical application scenarios
Construction field: door and window sealing strips (sound insulation, heat insulation, waterproofing), curtain wall expansion joint adhesive strips.
Automotive: Door seals, hood sealants (dust protection, shock absorption).
Home appliances / electronics: refrigerators, oven door seals (leak-proof cold/hot), waterproof adhesive strips for washing machines.
Luggage / furniture: luggage sealing strip (waterproof and moisture-proof), furniture drawer buffer strip.
Packaging & Storage
Packing: 25kg/bag, lined with polyethylene film, outer layer of polypropylene woven bag, moisture-proof and pollution-proof.
Storage: Store in a dry and ventilated warehouse, away from fire and corrosive substances, storage temperature - 10°C~40°C, shelf life of 12 months.
Customized service
Formulations can be adjusted according to customer needs, providing:
Cold-resistant type (-40°C non-brittle, suitable for severe cold areas);
Flame retardant type (UL94 V-0 compliant, used in automotive or building fire protection scenarios);
High wear-resistant type (with nano filler added to improve surface hardness, suitable for high-frequency friction environment).
With consistent performance and flexible customization capabilities, PVC Sealing Strip Pellets provide efficient and reliable sealing solutions for various industries.