Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Sekisui S-LEC PVB BL-1H Polyvinyl Butyral Resin

Sekisui S-LEC PVB BL-1H is a high-clarity, UV-resistant polyvinyl butyral resin from Sekisui’s premium S-LEC series, engineered for laminated safety glass interlayers. It offers exceptional adhesion, optical transparency, and impact resistance, meeting stringent automotive and architectural standards. Widely used in windshields, skylights, and blast-resistant glazing due to its superior processing stability and thermal compatibility with glass.
  • sekisui s lec pvb bl 1h polyvinyl butyral resin_0ecee4b3
  • sekisui s lec pvb bl 1h polyvinyl butyral resin_0ecee4b3

Features Of Sekisui S-LEC PVB BL-1H Polyvinyl Butyral Resin

  1. High optical clarity and exceptional transparency for premium laminated safety glass applications.

  2. Excellent adhesion to both glass and polycarbonate substrates without requiring primers.

  3. Superior impact resistance and energy absorption performance under dynamic loading conditions.

  4. Consistent melt flow behavior enabling stable extrusion and lamination process control.

  5. Low yellowing tendency and excellent long-term UV stability in outdoor environments.

Typical Applications Of Sekisui S-LEC PVB BL-1H Polyvinyl Butyral Resin

  1. Automotive laminated windshields and side windows.

  2. Architectural safety glazing for facades, skylights, and overhead installations.

  3. Security glazing systems including blast-resistant and forced-entry resistant laminates.

  4. Photovoltaic module encapsulation layers for enhanced durability and moisture barrier performance.

  5. Acoustic interlayers in noise-reducing laminated glass for transportation and building applications.

Specifications Of Sekisui S-LEC PVB BL-1H Polyvinyl Butyral Resin

Chemical TypePolyvinyl butyral (PVB) resin
Product FormFree-flowing white granules
AppearanceOff-white to light yellow granular solid
Primary ApplicationsLaminated safety glass interlayer
Key FeaturesHigh clarity, strong adhesion, impact absorption, UV stability
BenefitsProcess reliability, optical quality, safety compliance (e.g., ISO 16938, EN 14449)
Storage ConditionsStore in dry, cool, well-ventilated area; protect from moisture and direct sunlight
Standard Packaging25 kg multi-layer moisture-barrier polyethylene-lined paper bags


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