CUSTOM MANUFACTURING · PROJECT REVIEW
Gypsum Investment Powders for Gold and Silver Jewelry Casting
A jewellery investment powder must match its alloy, pattern, flask and burnout cycle. Relia reviews gold and silver gypsum formulations using item-specific data, then defines a representative trial before the material becomes a repeat purchase.
RELIA · PRODUCT AND MANUFACTURING SUPPORT
Define the alloy and pattern system
Relia's range includes a 22.5 kg powder-bag reference and a silver formulation listing 100 g powder to 38–40 ml water, an 8–10-minute working time and a 750°C maximum-burnout field. Relia keeps each value attached to its product. Your proposal identifies the actual pattern, alloy, flask and current process for a relevant material trial.
| Your requirement | Relia product and service scope |
|---|---|
| Pack reference | 22.5 kg/bag on one gold/silver powder |
| Recipe reference | 100 g powder : 38–40 ml water on the silver formulation |
| Working window | 8–10 minutes; initial set 10–12 minutes listed |
| Temperature field | 750°C maximum burnout on that formulation |
02 · PRODUCT IDENTITY
Review the exact formulation and technical data
- Selected formulation
- Identify the exact powder and current technical information.
- Applicable recipe
- Use its own mixing and thermal instructions.
The catalogue includes gypsum investment references for gold and silver. Confirm the selected item and current technical information instead of transferring one powder’s mixing or temperature fields to another formulation.
Technical notes
Measure powder and water consistently and include mixing, vacuuming and pouring within the stated working window. The formulation's 750°C maximum is a limit, not a universal target or complete burnout schedule. Flask size and load affect the required staged cycle.
MANUFACTURING ROUTE · FEATURES AND CONTROL
Make the Investment Mould Within the Formulation Window
The approved powder and measured water are mixed to form the slurry, with the selected vacuum step and pouring completed within the usable working time. After the required setting stage, the invested flask follows a compatible staged burnout cycle before casting. Relia's material review connects these operations to the pattern and flask load. Water ratio affects the mould, while oven maximum temperature and metal-pouring temperature are different conditions. The trial records the complete sequence so surface or mould problems can be discussed using actual process information.
- Measure the formulationCorrect powder, water and batch basis
- Mix and investDe-air/pour within the working window
- Set and burn outFlask/pattern-specific approved cycle
- Assess the cast resultDetail, surface and mould removal
04 · COMPATIBILITY
Review the material alongside the workshop equipment
- Workshop equipment
- Provide mixer, flask and burnout arrangements.
- Usable process
- Review batch preparation and the material's working programme.
Share the mixer, flask and burnout arrangement used in your process. Keep usable batch, preparation conditions and the applicable programme within the selected material’s review.
05 · VALIDATION
Approve a representative casting trial
Request the current technical sheet and trial representative patterns. Assess surface condition, incomplete fill and investment removal with the complete process recorded. Listed expansion at or below 0.08% requires its test context; it is not the dimensional tolerance of the resulting jewelry casting.
06 · DELIVERY
Retain lot identity and storage requirements
- Trial identity
- Record formulation, lot and approval conditions.
- Delivered material
- Agree pack size, moisture protection and required documents.
Agree pack size, moisture protection and applicable storage guidance for the material. Include the lot identification and documents required to connect the trial to a repeat purchase.
07 · PURCHASING
Compare the complete investment supply
Keep formulation, documents, trial and packing requirements together. Clarify any resin, alloy or process change before comparing materials on package weight or price alone.
Technical notes
Provide alloy, wax or resin pattern type, flask dimensions and batch quantity. Powder selection and cycle depend on the pattern and mould requirements. A familiar gypsum powder should not automatically be substituted into a resin-pattern workflow without compatibility review.
| Supply record | Retain |
|---|---|
| Material | Selected formulation and technical information |
| Approval | Trial and applicable conditions |
| Delivery | Pack size, lot and storage requirements |
CONNECTED BUYING GUIDES
Continue with the next project decision
Follow the related component and purchasing guides, or open the catalogue reference to carry this requirement into a specific project enquiry.
RELIA · YOUR NEXT PROJECT
Share the alloy, pattern and investment workflow
Send the metal, pattern material, flask details and current process information. Add trial and documentation requirements. We can review a gypsum investment enquiry with its formulation and approval conditions clear.
Start with these project details
- Alloy and pattern material
- Flask and mixing/burnout process
- Selected formulation and trial
- Quantity and documentation needs
Shuyuan Road, Qingdao, Shandong, China
