JPL Argento is an exceptionally competitive, plasterbonded investment powder, specifically formulated by optimizing the particle-size distribution.
The casting of brass for the costume jewellery market accounts for a large percentage of worldwide jewellery production, and is an area where costs must be minimized.
JPL Argento helps achieve this but at the same time produces castings with excellent surfaces, therefore reducing metal loss and keeping finishing work, prior to plating, to an absolute minimum.
JPL Argento can also successfully cast silver, producing good quality castings with a smooth finish.
JPL Argento is a competitive, conventional investment powder, although it is less abuse-resistant than other JPL products.
Target is to use deionised water between 23°C – 25°C together with powder at the same temperature to achieve a slurry temperature around 24°C – 26°C. This will allow the powder to give consistent gel and gloss off times to maximise the correct setting time of the powder.
It’s important that a flask is left undisturbed after investing for 90 minutes before removing the rubber base and inserting into the furnace to start the burnout cycle. This will allow the flask to gain its full green strength in preparation for the burnout cycle.
Product Packaging
DRUM : 45 kg Fibre Drum
SACK : 22 kg Sack
Technical Data
Power / Water Ratio : 100/38
Working Time @ 25c Slurry Temp. : 8-10 min.
Gloss Off Time @ 25c Slurry Temp. : 12-14 min.
Thermal Expansion At 750c :1.25%
Setting Expansion After 2 Hours : 1.10%
Volume Yield Per KG. of Powder : 755 ml.
JPL investment powder products can be steam or dry dewaxed in a furnace with excellent results. Wax will melt in the range of 65°C – 75°C and will flow out of the flask. It is recommended to hold the flask at 230°C to drive out all the wax and free moisture out of the flask. This will take approximately 3 hours.
At the top temperature at 730°C all the residual carbon from the wax is converted into carbon dioxide gas which easily leaves the flask leaving a uncontaminated mould for the metal to be cast into.
The casting temperature varies considerable depending on the size of wax piece and type of metal to be cast. Please contact JPL for our recommendations if casting defects are found as an adjustment to the flask casting temperature or metal temperature can solve most casting defects.
238, 3Fl. Bangkhuntian-Chaitalay Road,
Bangkhuntian Sub-district,
Samaedum,
Bangkok,
Thailand 10150
A subsidiary company of Goodwin PLC. Registered Office: Ivy House Foundry, Ivy House Road, Hanley, Stoke-on-Trent, Staffordshire, ST1 3NR, United Kingdom. All website content including images and flash media is Copyright 2022 © Goodwin Refractory Services Ltd. All rights reserved.
