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390-S2 (3 minute @ 90 degree water) is one of Accu-Cast's oldest "bucket mold" formulas for hand casting. It is so good that it doesn't need improving- but we did anyway. This is now our smoothest, easiest to mix alginate formula for outstanding detail in the casting.
390-S2 Alginate is Alginate at its Best
Still a reliable performer, 390-S2 has a 3 minute set when using quite warm 90°F water. If you use 70°F water this can be extended to just a little over 4 minutes.
It mixes smooth and thin, pours easily but sets snappy and firm. Skin level detail is outstanding and shrinkage is very slow.
For Portioning and Mixing instructions, please click HERE.