SpeedCure 976 by Lambson (Sartomer) is a diphenyl[2-(phenylsulfanyl)phenyl]sulfonium hexafluoroantimonate in propylene carbonate. Acts as a cationic photoinitiator. Cures cycloaliphatic epoxy resins such as UviCure S105 and UviCure S128, vinyl ethers and other cationically cured materials. SpeedCure 976 is more suitable for UV cured thicker coatings (>25µm). Shows faster cure than Speedcure 992 in inks and overprint varnishes. Suggested levels of use are 1.5-3.0 %w/w of Speedcure 976.
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SpeedCure 976 properties
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| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| ?¦ at ? 279 nm (Solvent: acetonitrile) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| ?¦ at ? 291 nm (Solvent: acetonitrile) | 0.0 Visible After Login | Visible After Login | Visible After Login |
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