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Smooth-On Silicones Pass High Temp Challenge For Wax Casting
Nature's Best Candle Co. was experiencing widespread  mold failure when casting their candles.  Their custom blend of bees wax and paraffin resulted in a product that melted at 225°F / 107°C.  At these temperatures their latex and urethane rubber molds were not lasting very long.

Nature's Best experimented with a variety of mold rubbers and decided to change its production entirely to Smooth-Sil® 910 and 920 platinum silicone rubbers.  "We were blown away by the tear strength these rubbers have to handle shapes like pine cones and other deep detail models.  You simply can't tear this stuff and we have not had one problem with a mold failing do to the wax being too hot.  Our investment in this silicone has paid off one hundred fold." 
                                                                                 -Asher Rothstein
                                                                                  President, Nature's Best Candle Co.
 The model is secured to the baseboard using a hot melt glue gun. A section of clear tubing is placed over the model and secured with hot melt glue.

1 - The model is secured to the baseboard using a hot melt glue gun. A section of clear tubing is placed over the model and secured with hot melt glue.
 This candle application calls for a mold rubber that can withstand high temp-melt wax--225°F/107°C.  Smooth-SilŪ 910 was selected because of its ability to withstand high heat, its high tear strength and its ability to stretch around deep undercuts.

2 - This candle application calls for a mold rubber that can withstand high temp-melt wax--225°F/107°C. Smooth-SilŪ 910 was selected because of its ability to withstand high heat, its high tear strength and its ability to stretch around deep undercuts.
 Smooth-SilŪ 910 is mixed thoroughly and poured over the model until the rubber reaches one inch over its highest point.

3 - Smooth-SilŪ 910 is mixed thoroughly and poured over the model until the rubber reaches one inch over its highest point.
 The rubber is allowed to cure and the original is carefullly extracted.

4 - The rubber is allowed to cure and the original is carefullly extracted.
 The Smooth-SilŪ 910 captured perfect detail from the original and the mold is ready for wax casting.

5 - The Smooth-SilŪ 910 captured perfect detail from the original and the mold is ready for wax casting.

                   
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