White Label (Strips), Castaldo

Castaldo White Label - Strips Castaldo WhiteLabel®

• 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).