HYDRACAST™ M463P – Professional Investment Plaster for Lost-Wax Casting & Art Founding
HYDRACAST™ M463P – Professional Investment Plaster for Lost-Wax Casting & Art Founding
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Premium Investment Casting Plaster for Professional Foundries
HYDRACAST™ M463P is a high-quality core plaster (investment casting material) specially developed for the lost-wax process, featuring extremely high green strength and excellent thermal shock resistance. This professional plaster combines high mechanical strength with versatile applicability for industrial components, art casting, and glass coating, ideal for larger castings with complex cores up to 1100°C. Mixing ratio 100:28 (powder:water) for optimal workability.
Key Benefits
- Extremely high green strength: Exceptional mechanical strength immediately after curing for safe handling of large, complex castings
- Excellent thermal shock resistance: Resistant to rapid temperature changes during burnout and casting up to 1100°C
- Suitable for larger castings: Specially developed for large, thin-walled castings with difficult cores
- Versatile applicability: Ideal for industrial components, art casting, glass coating, and non-ferrous alloys
- Long working time: 23 minutes of casting time for careful processing of complex patterns
- Optimal density: Slurry density 1.873 g/cm³ at 28% water for perfect detail reproduction
Typical Applications
- Lost-wax casting (investment casting) for aluminum and non-ferrous alloys up to 1100°C
- Art casting and precision casting for statues, sculptures, and decorative objects
- Industrial components with complex geometries and thin walls
- Glass coating and ceramic applications
- Prototyping and rapid manufacturing for metal parts
- Jewelry casting and fine metalworking (not for magnesium)
Technical Specifications
Basic Specifications:
- Mixing ratio: Powder:Water = 100:28 (by weight)
- Working time/casting time: 23 minutes
- Loose bulk density powder: 1.149 g/cm³
- Compacted bulk density powder: 1.694 g/cm³
- Slurry density (at 28% water): 1.873 g/cm³
- Maximum casting temperature: 1100°C
- Recommended aluminum casting temperature: 280-400°C
- Shelf life: 12 months under dry conditions
Conventional mixing procedure:
- Determine powder weight and measure temperature
- Choose water temperature for slurry temperature of 20°C
- Measure water into a clean mixing bowl
- Add plaster to water (not vice versa)
- Mix by hand for 30 seconds to break up lumps
- Machine mix for 4 minutes
- Vacuum in bowl (max 3 minutes)
- Pour slowly along cylinder wall until wax patterns are covered
- Vacuum in cylinder (max 3 minutes)
- Allow to stand undisturbed (minimum 2 hours)
Vacuum mixing procedure: Mix under vacuum for 5 minutes, fill flasks in investment chamber, allow a total of 10 minutes under vacuum, let stand for at least 2 hours.
De-wax and burnout procedure:
- Steam de-wax in autoclave at max 0.7 bar (10 psi)
- Place in oven at room temperature, heat to 200°C (max 200°C/hour)
- Soak at 200°C for 3-4 hours
- Heat to 700°C (max 100°C/hour)
- Burnout at 700°C: 5 hours for 25x25x25cm, up to 16 hours for 50x50x50cm
- Cool to casting temperature at 100°C/hour
Important limitations: Not recommended for metals above 1100°C. Not suitable for magnesium. For higher temperatures, use Crystalcast.
GRS Goodwin is a world leader in investment casting materials for professional foundries, artists, and industrial applications.
Professional Support
Our technical specialists advise on mixing procedures, burnout schedules, casting temperatures, and optimal results for your specific investment casting application. Contact us for technical datasheets, processing guidelines, or advice on material selection for different alloys and temperatures.
| Color | White |
|---|---|
| End color | White |
| Processing time | 23 minutes |
| Tensile strength | 0.6 N/mm2 |
| Mixing ratio A/B | 25:100 |
| Compressive strength | > 0.8 MPa |
Safety Information
WARNING: M463P CONTAINS SILICA and is therefore harmful if inhaled DUE TO Danger of cumulative effects. Consult the safety data sheet for complete information about silica-based products.| Safety Pictograms | Safety Data Sheets (SDS) |
|---|---|
GHS hazard pictograms
Required protection (ISO 7010)
 |
| Signal Word | H‑code | Hazard Statement | P‑codes | P‑statements |
|---|---|---|---|---|
| Warning | H332 | Harmful if inhaled | P261 P271 |
|
| Warning | H335 | May cause respiratory irritation | P261 P271 |
|
Technical data sheets
Frequently asked questions
What is the delivery time for my order?
Orders placed and paid on working days are in most cases shipped the same day. Weekend orders are processed on the next working day.
Indicative delivery times: Netherlands usually within 1 working day, Belgium and Germany typically 1–2 working days, other countries depending on destination and carrier. These are guidelines, not guarantees: peak periods, public holidays or carrier delays can have an effect.
What is the return policy?
You have 30 days to return after receipt. Email info@siliconesandmore.com within 30 days of delivery with your name and order number. The full conditions are in our return policy.
How can I track my order?
As soon as your order has shipped, you'll receive a track & trace code by email. It can take up to 24 hours before the code is active.
I have a problem with my order – how do I reach you?
Contact us via our contact page or email info@siliconesandmore.com. We're happy to help you quickly.
Can I order as a business?
Yes. Apply for a business account; we review your application within 3 working days. After that you order while logged in and pay on invoice, with payment terms of 14 days after delivery.
EU businesses outside the Netherlands with a valid VAT number order with VAT reverse-charged (0%, intra-community supply). The VAT number is stored in your business account; it cannot be added to an order after it has been placed.