Gold Label (Strips), Castaldo

Castaldo Gold Label - Strips

• Castaldo Gold Label®
• Enough jewellery moulding rubber to make 3 to 5 or 15 to 25 standard size jewellery moulds
• Contains even more pure natural gum rubber, making it even softer and more pliable
• Has the highest concentration of pure natural gum rubber
• Which makes it resilient and extremely pliable
• Experienced mold-makers know that this compound’s superior qualities can save them substantially on labour costs when used for difficult moulds containing undercuts, where a stiffer mold would break delicate wax patterns or would make their production impossible altogether
• Supplied in easy to handle & store box which keeps the rubber neat, clean and fresh
• Lined with cloth and lightly dusted to keep fresh and protected (the dust does not interfere with the mould making)
• See PDF's in category information for fact sheet and technical information

Specifications:

• Each strip is 73 x 455 x 3.2mm (width x length x thickness)
• 5lb

Vulcanising:

• It is recommended that a vulcanisation temperature of 307°F (152°C) is used
• In order to calculate vulcanisation time it is recommend to follow this: 7.5 minutes for every thickness (1/8 inch or 3.2mm) of mould rubber, with a minimum time of 30 minutes
• As an example a 3/4 inch mould (19mm) consisting of six thicknesses should be vulcanized for 45 minutes (6 x 7.5). A half inch mould (13mm) should be vulcanized for 30 minutes (4 x 7.5).