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

Sekisui S-LEC PVB BM-1 Polyvinyl Butyral Resin

Sekisui S-LEC PVB BM-1 is a high-clarity, impact-resistant polyvinyl butyral resin from Sekisui’s premium S-LEC series, engineered for automotive laminated safety glass interlayers and architectural glazing. It offers superior adhesion, UV stability, and acoustic damping. Widely specified for OEM windshield applications, BM-1 ensures consistent melt flow, excellent optical transparency, and reliable delamination resistance under thermal and mechanical stress.
  • sekisui s lec pvb bm 1 polyvinyl butyral resin_f0ee1894
  • sekisui s lec pvb bm 1 polyvinyl butyral resin_f0ee1894

Features Of Sekisui S-LEC PVB BM-1 Polyvinyl Butyral Resin

  1. High adhesion strength to glass and polycarbonate substrates for reliable interlayer bonding.

  2. Excellent optical clarity and low haze, meeting stringent requirements for automotive and architectural safety glazing.

  3. Superior UV resistance and long-term weatherability, minimizing yellowing and delamination under prolonged exposure.

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

  5. Low residual acetaldehyde content, supporting compliance with indoor air quality and food-contact-adjacent applications.

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

  1. Automotive laminated safety glass (windshields, sunroofs, side windows).

  2. Architectural laminated glass for façades, skylights, and blast-resistant installations.

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

  4. Security and anti-shatter films for retrofit glazing solutions.

  5. Acoustic interlayers in noise-reducing laminated glass systems.

Specifications Of Sekisui S-LEC PVB BM-1 Polyvinyl Butyral Resin

Chemical TypePolyvinyl butyral (PVB) resin
Product FormFree-flowing white granules
AppearanceOff-white to light yellow granules, uniform particle size
Primary ApplicationsLaminated safety glass interlayer
Key FeaturesHigh transparency, excellent adhesion, thermal stability, UV stability
BenefitsEnhanced safety performance, process reliability, long service life
Standard Packaging20 kg multi-layer paper/polyethylene bags
Storage ConditionsStore in cool, dry, well-ventilated area; avoid direct sunlight and moisture


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