Kollicoat Smartseal 30 D is the first water based dispersion for taste masking and moisture barrier applications. It is a 30 percent aqueous polymer dispersion of methyl methacrylate and diethylaminoethyl methacrylate stabilized with approx. 0.6 percent macrogol cetostearyl ether and 0.8 percent sodium lauryl sulfate.

Kollicoat Smartseal 30 D is stable in saliva (pH 6.8 – 7.2) and specifically soluble in gastric juices which insures effective protection from unpleasant taste and rapid release with onset of drug action, in the stomach. It is highly impermeable to water vapour, helping preserve the potency of sensitive actives.