Improve the strength, hardness and finishing of your handmade candles with Stearic Acid Wax Hardener. Also commonly known as candle hardener, wax hardener' or 'stearic wax additive, it is used with candle-making wax to produce stronger, firmer and better-shaped candles. Stearic acid helps reduce candle softness, improves shape retention and supports smoother removal of moulded candles from candle-making moulds. It is especially suitable for manufacturing pillar candles, stand candles, plain candles, decorative candles and other mould-based wax products.