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

Sekisui S-LEC PVB KS-1 Polyvinyl Butyral Resin

Sekisui S-LEC PVB KS-1 is a high-purity polyvinyl butyral resin from Sekisui’s premium S-LEC series, engineered for exceptional adhesion, clarity and UV resistance. Widely used in automotive and architectural laminated safety glass interlayers, it ensures superior impact absorption and optical performance. Its consistent molecular structure delivers reliable processing and long-term durability under demanding conditions.
  • sekisui s lec pvb ks 1 polyvinyl butyral resin_7b76e115
  • sekisui s lec pvb ks 1 polyvinyl butyral resin_7b76e115

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

  1. High adhesion strength to glass and polycarbonate substrates.

  2. Excellent optical clarity and low haze for transparent laminated safety applications.

  3. Superior impact resistance and energy absorption performance.

  4. Good compatibility with plasticizers such as triethylene glycol di-2-ethylhexanoate (3GO).

  5. Consistent batch-to-batch quality ensured by Sekisui’s proprietary polymerization and purification processes.

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

  1. Laminated automotive windshields and side windows.

  2. Architectural safety glazing for facades, skylights, and balustrades.

  3. Security and blast-resistant laminated glass systems.

  4. Photovoltaic module encapsulation interlayers.

  5. Acoustic laminated glass for noise reduction in transportation and buildings.

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

Chemical TypePolyvinyl butyral (PVB) resin
Product FormFree-flowing white granular powder
AppearanceWhite to off-white granules, free of visible specks or discoloration
Primary ApplicationsSafety laminated glass interlayer
Key FeaturesHigh transparency, excellent adhesion, thermal stability, and processability
BenefitsEnables high-yield lamination, reduces delamination risk, supports stringent automotive and building codes
Storage ConditionsStore in cool, dry environment at 15–25°C; protect from moisture and direct sunlight
Standard Packaging20 kg multi-layer paper/polyethylene bags with inner polyethylene liner


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