SpeedCure PBZ by Lambson (Sartomer) is a 4-phenylbenzophenone. Acts as a photoinitiator. Upon UV irradiation, it forms a chemically reactive state capable of hydrogen abstraction from an amine synergist. The free radical from the amine provides very efficient initiation of suitable resins. Exhibits a faster cure than benzophenone. Has low odor and little photo yellowing. It absorbs at longer wavelengths than benzophenone. SpeedCure PBZ is recommended for adhesives. Suggested levels of use are 0.5 – 3% w/w Speedcure PBZ together with 2 – 5% w/w Speedcure EDB or DMB.
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SpeedCure PBZ properties
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| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| ?¦ at ? 290 nm (Solvent: methanol) | 0.0 Visible After Login | Visible After Login | Visible After Login |
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