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PVC: The Budget-Conscious Option (三)

2025-12-18

outline:
PVC: The Budget-Conscious Option (三)

3. PVC: The Budget-Conscious Option

Polyvinyl Chloride (PVC) is a rigid plastic that is softened with plasticizers to create flexible seals. It is a common low-cost alternative.

 

Low Cost: PVC is one of the most economical materials available for sealing strips.

 

Adequate Weather Resistance: It provides decent protection against moisture and air infiltration in mild conditions.

 

Significant Limitations:

 

Poor Temperature Tolerance: PVC becomes stiff and brittle in cold weather and can soften and deform in high heat, leading to premature failure.

 

Plasticizer Migration: The softening agents can leach out over time, causing the material to harden, shrink, and crack. This results in a short service life compared to rubber.

 

Ideal for: Short-term, low-budget projects, or interior applications not exposed to extreme temperatures or direct sunlight.

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