In waterproofing membrane production, release liners play a vital role in ensuring product quality and performance. One of our customers faced challenges with long-term storage of asphalt-based self-adhesive waterproofing membranes, which threatened adhesive quality and consistency.

Our solution: a 25µm modified PET release liner, engineered to maintain asphalt adhesion even after extended storage.

• ❌ Poor adhesion during installation after long-term storage
• ❌ Reduced product reliability and performance consistency
• ❌ Increased waste and customer complaints

We provided a 25µm gray modified PET release liner tailored for self-adhesive asphalt waterproofing membranes. Key features included:

• ✔ Precise thickness control (25µm)
• ✔ Uniform surface treatment for consistent release
• ✔ High dimensional stability suitable for industrial roll handling

Unlike ordinary liners, our modified PET film preserves adhesive properties over extended storage periods.

• ✔ Even after three months of storage, asphalt adhesion remains excellent
• ✔ Consistent peel values across multiple batches
• ✔ No observable decline in asphalt tack compared with fresh production

• ✔ Reduced quality issues due to storage degradation
• ✔ Fewer customer complaints related to adhesion
• ✔ Smoother production and packaging workflow

Choosing the right release liner is critical for high-performance self-adhesive membranes. Our 25µm modified PET release liner ensures:

• Stable adhesion even after three months of storage
• Reliable production consistency
• Industrial readiness for commercial applications

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