High-Performance PVC Compound for Window & Door Gasket Extrusion

Overview: The Crucial Role of PVC Gaskets in Building Systems

Window and door gaskets (weatherstrips) are essential components that dictate the overall sealing, insulation, and longevity of modern architectural systems. A well-engineered gasket prevents water infiltration, blocks draft and dust, reduces noise pollution, and optimizes building energy efficiency.

At HKTech Vietnam, we manufacture specialized flexible PVC Compounds specifically formulated for smooth, high-speed gasket extrusion, catering to diverse architectural and industrial sealing requirements.

Detailed Application Breakdown for PVC Gasket Compounds

Our PVC Compounds are customized to suit various gasket profiles and application environments across the building and construction sector:

1. Glazing Gaskets (Glass Sealing Strips)

• Placement: Positioned at the interface between glass panels and aluminum or uPVC frames.

• Technical Requirements: Requires a balanced hardness of 65 to 75 Shore A with low compression set. The gasket provides a watertight seal, absorbs structural vibration, and protects the glass against wind loads and shock.

2. Frame & Sash Seals (Weatherstrips)

• Placement: Installed along the contact perimeter between fixed frames and operable window/door sashes.

• Technical Requirements: Demands superior elasticity (55 to 65 Shore A) for soft, effortless door closure. These seals create air-tight barriers to maximize acoustic insulation (reducing urban noise) and thermal insulation (lowering HVAC energy consumption).

3. Aluminum, uPVC & Wooden Door Systems

• Aluminum & uPVC Profiles: Requires tight dimensional tolerances and a smooth surface finish to allow effortless press-in installation into frame grooves without tearing or slipping.

• Wooden & Interior Doors: Requires color consistency, mild flame retardancy, and a clean aesthetic finish to match interior designs.

4. Curtain Wall & Facade Systems

• Placement: Used on high-rise building envelopes and structural glass facades.

• Technical Requirements: Exposed to harsh outdoor environments year-round. Our PVC compounds are formulated with high levels of UV stabilizers and anti-aging additives to resist thermal degradation, cracking, and shrinkage under intense sunlight and wide temperature fluctuations.

Key Technical Advantages of HKTech PVC Compounds

• Tailored Hardness Range: Easily customized from 55 Shore A to 85 Shore A depending on your specific profile geometry and sealing function.

• Exceptional UV & Weather Resistance: Engineered to maintain physical flexibility and color integrity over long-term outdoor exposure.

• Optimized Extrusion Efficiency: Consistent melt flow index (MFI) ensures uniform wall thickness, smooth surface appearance, and reduced scrap rates during high-speed extrusion.

• Custom Color Matching: Available in Standard Black, Matte Black, Charcoal Grey, White, or custom RAL colors upon request.

Request Technical Data Sheets (TDS) & Trial Samples

Are you looking for a reliable, factory-direct PVC compound supplier to elevate your gasket manufacturing line? Contact the HKTech Vietnam technical sales team today to discuss your specifications, receive a detailed TDS, or request free samples for trial run.

• Email: pvc.export8@shcgroup.vn

• WhatsApp / Hotline: +84 93 616 5098

• Website: pvchigh.com.vn