SMA® 2021H by Cray Valley (Total Group) is the medium molecular weight styrene-maleic anhydride copolymer solution, with an approximate 2:1 mole ratio, which has been neutralized with ammonium hydroxide. It exhibits high heat- and water resistance. It is available as a 15-20% solids solution. It balances higher styrene content with solubility in an aqueous base. It is suitable for overprint varnishes and graphic/art coatings.
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SMA® 2021H properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Color, Gardner | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Glass Transition Temperature (Tg) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Molecular Weight, Mw | 0.0 Visible After Login | Visible After Login | Visible After Login |
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