XHM320

Our XHM320 Kerf Slot series redefines window insulation by addressing the most common failures of traditional weather stripping—seal displacement, material fatigue, and acoustic leakage. Engineered specifically for high-performance window systems, this strip provides a permanent, professional-grade barrier against the elements.

Seamless Kerf Integration: The biggest frustration with adhesive or loose-fitting seals is their tendency to peel or shift over time. The XHM320 eliminates this issue with its kerf slot design, which locks firmly into a 5.5mm groove with a depth of 2.7mm to 3mm. This mechanical fit ensures the seal remains perfectly aligned throughout years of operation, providing a stable, non-loosening foundation for both residential and commercial window frames.

Dynamic Butt Seal Performance: Healing the “breathing” gaps in window frames requires significant flexibility. Featuring a substantial 11mm compression capability, the XHM320 creates a hermetic butt seal across installation spaces ranging from 4mm to 6mm. Because the high-density polyurethane foam core requires minimal force to compress (≤ 10N), windows close effortlessly with a soft, premium feel, yet provide enough pressure to eliminate drafts and reduce external noise by a remarkable 45 dB.

Engineered Longevity: Standard rubber and PVC seals often harden or crack when exposed to the sun and extreme cold. The XHM320 is built to endure. The PE film coating acts as a protective skin, shielding the resilient foam core from UV radiation and moisture for over 10 years. Whether facing a winter or a summer, the material retains its shape and elasticity, ensuring that your windows remain energy-efficient and quiet for the long haul.