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

Kuraray PVB B45H Polyvinyl Butyral Resin

Kuraray PVB B45H is a high-clarity, thermoplastic polyvinyl butyral resin from Kuraray’s premium B-series, engineered for laminated safety glass interlayers. It offers exceptional adhesion to glass, UV resistance, impact strength, and processing stability in autoclave and EVA-free lamination. Widely used in automotive windshields and architectural glazing, B45H balances viscosity control with superior optical performance and weatherability.
  • kuraray pvb b45h polyvinyl butyral resin_3ff986ea
  • kuraray pvb b45h polyvinyl butyral resin_3ff986ea

Features Of Kuraray PVB B45H Polyvinyl Butyral Resin

  1. High adhesion strength to glass and polycarbonate substrates.

  2. Excellent optical clarity and UV stability for long-term transparency.

  3. Optimized melt flow behavior for efficient extrusion and lamination processes.

  4. Consistent batch-to-batch quality with stringent raw material control.

  5. Low volatile organic compound (VOC) emission profile suitable for indoor applications.

Typical Applications Of Kuraray PVB B45H Polyvinyl Butyral Resin

  1. Laminated safety glass for automotive windshields and side windows.

  2. Architectural glazing interlayers in façades, skylights, and balustrades.

  3. Photovoltaic module encapsulation for enhanced moisture barrier performance.

  4. Acoustic interlayers in noise-reducing laminated glass assemblies.

  5. Specialty laminates for bullet-resistant and blast-mitigation systems.

Specifications Of Kuraray PVB B45H Polyvinyl Butyral Resin

Chemical TypePolyvinyl butyral (PVB) copolymer
Product FormFree-flowing granules
AppearanceOff-white to light yellow granules
Primary ApplicationsSafety glass interlayer, photovoltaic encapsulant
Key FeaturesHigh tack, balanced stiffness-toughness ratio
BenefitsEnhanced delamination resistance and impact energy absorption
Storage ConditionsStore in dry, cool environment (≤30°C, RH < 60%)
ComplianceMeets ISO 12543-3 for laminated glass interlayers


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