Tooltos 1.5in Perforated Casting Flask | Flanged Vacuum 2-3-4 Inch
- 109 in stock
Description
Key Selling Points
- 304 Stainless Steel Construction — High-temperature resistant, corrosion-proof, and built for repeated kiln burnout and casting cycles
- Perforated Wall Design — Strategically placed perforations allow vacuum to draw air pockets out of the investment for bubble-free casts
- Flanged Top Design — Creates an airtight seal with the vacuum casting machine plate for maximum vacuum efficiency
- Rubber Base Included — Seals the bottom of the flask during investment pouring; no separate purchase needed
- Three Height Options — 2 inch, 3 inch, and 4 inch heights available to match your wax tree size and batch volume
- 1.5 Inch Diameter — Sized for rings, small pendants, earrings, and charms; compatible with standard 1.5 inch vacuum casting machine ports
About This Casting Flask
The Tooltos 1.5 Inch Perforated Stainless Steel Casting Flask is designed for lost-wax vacuum casting of rings, pendants, earrings, and small charms. The perforated wall allows the vacuum to remove air from the investment during pouring, eliminating bubbles that cause surface defects in the finished casting. The flanged top creates a reliable seal with the vacuum machine plate, and the included rubber base seals the bottom during investment preparation.
Available in 2, 3, and 4 inch heights to match different wax tree sizes and batch volumes. The 304 stainless steel construction handles the full temperature range of kiln burnout and is resistant to the corrosive effects of investment material over repeated use cycles.
Size Selection Guide
| Size | Diameter | Height | Best For |
|---|---|---|---|
| 1.5 x 2 inch | 38mm (1.5 in) | 51mm (2 in) | Single rings, small earrings, prototype testing |
| 1.5 x 3 inch | 38mm (1.5 in) | 76mm (3 in) | Small pendants, earring pairs, small charm batches |
| 1.5 x 4 inch | 38mm (1.5 in) | 102mm (4 in) | Larger wax trees, multi-piece batches, delicate pendants |
Best For / Not For
| Best For | Not For |
|---|---|
| Lost-wax vacuum casting of rings, pendants, earrings, and small charms in gold, silver, brass, and bronze | Centrifugal casting — the flanged top design is specific to vacuum casting machines |
| Jewelry studios and small production workshops using standard 1.5 inch vacuum casting machine ports | Workpieces requiring a larger flask diameter — this flask is 1.5 inch (38mm) only |
| Prototype testing of new wax designs before committing to larger batch production | Gravity casting without vacuum equipment — the perforated wall requires vacuum to function as intended |
| Jewelry students and hobbyist metalworkers learning lost-wax casting at small scale | Industrial high-volume production requiring larger flask sizes |
Technical Specifications
| Flask Material | 304 stainless steel |
| Base Material | Rubber (included) |
| Flask Diameter | 38mm (1.5 in) |
| Available Heights | 51mm / 76mm / 102mm (2 in / 3 in / 4 in) |
| Wall Design | Perforated for vacuum flow |
| Top Design | Flanged for airtight vacuum seal |
| Compatible Metals | Gold, silver, brass, bronze, and standard jewelry casting alloys |
| Compatible Machines | Standard vacuum casting machines with 1.5 in port (2L-6L capacity) |
| Flask Weight | Approx. 110g (3.9 oz) |
Pro Tips
- Clean perforations with a small brush or compressed air after each use to maintain optimal vacuum flow through the flask wall.
- Pre-heat the flask slightly before pouring investment to reduce thermal shock and extend flask service life over repeated casting cycles.
- Store with the rubber base attached to prevent dust from accumulating in the perforations between casting sessions.
- Check the flange surface for investment residue before each use — a clean flange ensures a proper airtight seal with the vacuum plate.
- For the 4 inch flask, use a longer sprue to ensure the wax tree fits within the flask height with adequate investment coverage above the top piece.
Frequently Asked Questions
What size projects is this flask best for?
The 1.5 inch diameter is ideal for rings, small pendants, earrings, and charms. Choose the height based on your wax tree size: 2 inch for single pieces, 3 inch for small batches, 4 inch for larger wax trees.
Is this compatible with my vacuum casting machine?
This flask is designed for standard vacuum casting machines with a 1.5 inch port, typically 2L to 6L capacity. Confirm your machine's flask port diameter before ordering.
What metals can I cast with this flask?
Gold, silver, brass, bronze, and standard jewelry casting alloys. The 304 stainless steel construction handles the temperatures required for all common jewelry metals.
How do I clean the perforations?
Use a small brush or compressed air after each use. The stainless steel will not corrode or degrade with regular cleaning.
Is the rubber base reusable?
Yes. The rubber base is reusable across multiple casting sessions. Inspect it before each use for cracks or deformation that could affect the seal during investment pouring.
Can I use this flask for centrifugal casting?
This flask is designed for vacuum casting. The flanged top is specific to vacuum machine plates. For centrifugal casting, a different flask style without the flanged top is typically required.
What's Included
- 1 x Perforated stainless steel casting flask (1.5 in diameter, selected height)
- 1 x Rubber base
Support
Questions about flask sizing, machine compatibility, or order status? Contact the Tooltos team at sales@tooltos.com. We respond within 24 hours on business days.
