SIAM CASTING POWDERS LTD.
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SCP - Products
INVESTMENT
POWDERS
POWDERS
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Investment Powders
Siam Casting Powders
PRO-HT Platinum
SACK : 22.7 Kg
Drum : -
Pro-HT Platinum is a high technology phosphate bonded product designed for casting high temperature alloys such as Platinum and Steel with metal pouring temperature up to 2100 °C / 3800 °F.
Product Detail
PRO-HT Platinum
FOR OPTIMAL RESULTS
Do not line the can with absorbent paper.
Use a rubber base.
Do not exceed a furnace temperature of 900 0C (1650 0F).
Use the recommended powder/water ratio.
Do not over vacuum.
- Provides heat shield for stones up to mould temperature of
630oC. - Setting time adjusted to give sufficient time for mixing and
vacuuming without rushing. - Fluid slurry for easy flow around the wax and stones.
- Excellent surface finish for all metals.
- High strength investment for consistent quality of casting.
TYPICAL PROPERTIES
<table class=”demTable”>
<tbody>
<tr>
<td class=”scpb-1″>Powder / Water Ratio :</td>
<td class=”scpb-2″>100/38</td>
</tr>
<tr>
<td class=”scpb-1″>Working Time @ 25c Slurry Temp :</td>
<td class=”scpb-2″>8-9 min.</td>
</tr>
<tr>
<td class=”scpb-1″>Gloss Off Time @ 25c Slurry Temp :</td>
<td class=”scpb-2″>11 – 13 min.</td>
</tr>
<tr>
<td class=”scpb-1″>Thermal Expansion At 750c :</td>
<td class=”scpb-2″>1.2%</td>
</tr>
</tbody>
</table>
MIX PROCEDURE
| Machine Vacuum Mixing | 38 : 100 |
| Hand Mix Then Vacuum | 38 : 100 |
| Use de-ionised water Weigh water and powder Slurry temperature 21 ํC Leave for 90 min to stand before burn out |
| MACHINE VACUUM MIXING | |
|---|---|
| 0 min | Weigh out water & powder Add powder to water |
| 1 min | Mix under vacuum |
| 0.5 min | Stop mixer and scrape blades |
| 3.5 min | Mix under vacuum |
| 2 min | Pour flasks |
| 1 min | Vacuum flasks |
| 8 min | Total time taken |
| HAND MIX THEN VACUUM | |
|---|---|
| 0 min | Weigh out water & powder Add powder to water |
| 1 min | Mix by hand |
| 3 min | Mix with machine |
| 1 min | Vacuum mixer bowl |
| 1 min | Pour flasks |
| 2 min | Vacuum flasks |
| 8 min | Total time taken |
