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Polyether Polyol
- Trifunctional
  - BH-5103P
  - BH-5203E
UV-EB Monomer
- Monofunctional
  - BM1105
  - BM1210
  - BM1210G
  - BM1211
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  - BM2101M
  - BM2223
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  - BM2241M
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  - BM3231
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  - BM6261
  - BM6263
UV-EB Resin
- Phosphate Functional Acrylate
  - B-02
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  - B-21
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  - B-100
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  - B-431
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  - B-39
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  - B-295A
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  - T-2022D
  - B-301
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  - B-919B
  - B-919BX
- Light-moisture Dual-curable Oligomer
  - B-404
  - B-404C
  - B-405
  - B-405H
- Photothermal Dual-curable Oligomer
  - B-450-2
  - B-451
  - B-6063
  - B-6263
- Polyester Acrylate Oligomer
  - B-2016
  - B-503
  - B-509B
  - B-519
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  - B-583
  - B-590
  - B-79D
- Special Functional Acrylate
  - B-6016C
  - B-6019
  - B-6020
  - B-6371-3
  - B-6380N
- Organic Silicon Modified UV Oligomer
  - B-828
  - B-868
  - B-868H
  - T-2706

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Aliphatic polyurethane acrylate

B-291

Product features:

B-291 is a bifunctional hydrogenated polybutadiene-modified polyurethane acrylate with a high molecular weight, exhibiting minimal shrinkage upon curing, moderate flexibility and toughness, excellent water and oxygen barrier properties, and superior chemical resistance.

Recommended use:

Adhesives, quantum-dot-encapsulating adhesives, and other water- and oxygen-barrier adhesives, as well as in the field of radiation-curing applications.

Shelf life:

Store at room temperature, sealed and protected from light. Shelf life: 6 months.

Packaging specifications:

200L packaging drum; 20L packaging drum.

Precautions:

None

TDS

TDS Download:

B-291 TDS (2025.09 version)

Download

Product Specifications:

Project	Indicator	Detection method
Appearance	Transparent liquid	Visually
Color (APHA)	≤50	GB/T 3143-1982 (Platinum-Cobalt Method)
Viscosity (cps/60℃)	18,000–40,000	GB/T 2794-2022
Acid value (mg KOH/g)	≤1.0	GB/T 6743-2008
Specific gravity (g/cm³)	0.94 ± 0.02	GB/T 6750-2007
Refractive index (25℃)	1.498 ± 0.005	GB/T 614-2006
Active ingredient (%)	100	Theoretical value
Functionality	2	Theoretical value