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

Sekisui S-LEC PVB BL-2 Polyvinyl Butyral Resin

Sekisui S-LEC PVB BL-2 is a high-clarity, impact-resistant polyvinyl butyral resin from Sekisui’s premium S-LEC series, engineered for automotive and architectural laminated safety glass interlayers. It offers exceptional adhesion, UV stability, and processing versatility via extrusion or casting. Widely specified for OEM windshield applications requiring stringent optical and mechanical performance.
  • sekisui s lec pvb bl 2 polyvinyl butyral resin_92508600
  • sekisui s lec pvb bl 2 polyvinyl butyral resin_92508600

Features Of Sekisui S-LEC PVB BL-2 Polyvinyl Butyral Resin

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

  2. Optimized melt flow characteristics enabling smooth extrusion and uniform interlayer formation.

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

  4. Superior UV resistance and long-term yellowing resistance under accelerated weathering conditions.

  5. Consistent batch-to-batch quality with tight control over molecular weight distribution and residual solvent content.

Typical Applications Of Sekisui S-LEC PVB BL-2 Polyvinyl Butyral Resin

  1. Automotive laminated windshields and side windows.

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

  3. Security glazing in banks, government buildings, and high-risk facilities.

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

  5. Acoustic laminated glass for noise-reduction applications in transportation and building envelopes.

Specifications Of Sekisui S-LEC PVB BL-2 Polyvinyl Butyral Resin

Chemical TypePolyvinyl butyral (PVB) copolymer
Product FormPellets
AppearanceWhite to off-white free-flowing pellets
Primary ApplicationsLaminated safety glass interlayer
Key FeaturesHigh transparency, excellent adhesion, low haze, thermal stability
BenefitsEnhanced impact resistance, optical clarity retention, processing reliability
Storage ConditionsStore in cool, dry place; protect from moisture and direct sunlight
ComplianceMeets ISO 12543-3 for laminated glass interlayers


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