Limited time promotion! Purchase any AC730 kit and receive a free 30ml hydrochloric acid for etching purposes. While stocks last!
Jesmonite AC730 is a rapid setting acrylic polymer modified cementitious composite. The system is designed for glass reinforced decorative structures, and can also be used for small castings (see Technical Data sheet).
The product contains a fine decorative aggregate and powder pigments, carefully controlled to give a consistent decorative surface finish after treatment with a proprietary brick cleaner or acid etch. It is supplied as two components, a water-based acrylic liquid, and a blended powder, with a mix ratio of 5:1 (Powder to Liquid).
You have a working time of approximately 20 minutes, depending on size and complexity, the cast should be left in the mould for a further 2½ – 3½ hours and achieves over 90% of its ultimate strength in the first 24 hours.
Etching is recommended to expose the fine decorative aggregates on the cementitious surface. You may use our hydrochloric acid to do so. The acid removes the cement rich film from the surface of objects moulded in AC730 to produce a stone finish. When diluted with water it can also be used as a cleaner for removing marks from AC730.
AC730 is available in six stone finishes; Old Terracotta, Yellow Sandstone, Bathstone, White Marble, Natural Stone and Silver Grey Granite.