Investment powder SRS Classic

Description

CLASSIC™ is the result of years of research and development by SRS, representing the highest quality plaster powder currently available. CLASSIC™ uses the highest quality specially filtered raw materials, all of which meet the specifications of the SRS QC laboratory. It is ideal for casting 18K and 22K gold.

Features of CLASSIC™:

• High purity raw materials filtered and selected specifically for jewellery casting.
• Increased fire resistance gives improved thermal shock resistance during burnout and casting.
• Suitable for all metals, especially 18K gold and silver.
• Smoother surface finish – less polishing required.
• Even creamy consistency when mixed and poured.
• Contains all moisturising and anti-bubble ingredients – no need to add before mixing.
• CLASSIC™ is easy to break after casting.

Product packaging
Bag: 22,5 kg.

Technical data
Powder/water ratio: 100/38-40
Working time 22c Temp: 8 min.
Shut-off time: 22c Temp: 10-12 min.
Thermal expansion: at 750 °C: 1.0%