Rubber Base for Vacuum Casting Flask – Multiple Sizes Available

Product Overview

Pair your compatible jewelry casting flask with a matching black rubber base. This circular component features a raised central section and center opening for use with compatible perforated casting flasks and flanged vacuum casting flasks.

When replacing a worn base or preparing a matching flask assembly, fit comes first. Listed size options range from 1.2 to 8.6 inches. Check your flask specifications, base dimensions, and equipment requirements before choosing a size.

Key Features

Matching Flask Component

A matching or replacement accessory for compatible perforated and flanged casting flask assemblies used in jewelry lost wax casting workflows.

Multiple Size Options

Ten listed size designations help you compare options for different flasks. The size designation alone does not establish fit; confirm the actual mating dimensions before ordering.

Black Rubber Construction

A circular rubber body with a raised center and central opening. Check that the profile matches the flask assembly specified by your equipment manufacturer.

Suitable Applications

• Compatible perforated casting flask assemblies
• Compatible flanged vacuum casting flask assemblies
• Replacement of a matching casting flask rubber base
• Jewelry lost wax casting workshop accessory setup

Important Function Clarification

This product is a rubber base, not a complete casting flask or vacuum casting machine. It does not melt metal, perform burnout, generate vacuum, or cast metal by itself. Compatibility depends on the flask diameter, base dimensions, flange configuration, and equipment design.

A temperature rating, vacuum rating, and suitability as a hot-flask sealing gasket have not been confirmed. Do not assume this base is suitable for furnace use or contact with hot flasks. Follow the equipment instructions for the correct stage of use and removal.

Technical Specifications

Package Contents

• 1 × Casting flask rubber base in the selected size

Disclaimer: The casting flask, vacuum casting machine, investment material, and other accessories are not included unless explicitly stated in the listing. The package does not contain all listed sizes.

Basic Operating Steps

1. Identify your flask model and its specified rubber base.
2. Compare the flask's nominal size and actual mating dimensions with the required base.
3. Inspect the base for damage or deformation.
4. Assemble the base and cool flask according to the manufacturer's instructions.
5. Check that the components seat correctly without forcing the fit.
6. Follow the equipment instructions for use and removal before any incompatible high-temperature stage.

Safety Information

• Confirm flask and equipment compatibility before use.
• Do not use an incorrectly sized, cracked, or deformed base.
• Keep away from molten metal, hot flasks, direct flame, and excessive heat.
• Do not use as a rated high-temperature or vacuum sealing component without confirmed suitability.
• Follow the equipment manufacturer's assembly and operating instructions.

Frequently Asked Questions

How do I choose the correct size?

Check your flask size, actual mating dimensions, and equipment requirements. The listed inch designation alone does not guarantee fit.

Will it fit every vacuum casting flask?

No universal fit is claimed. Use it only with compatible perforated or flanged flasks whose dimensions and assembly requirements match.

Can the base remain attached during burnout?

Furnace use and a temperature rating have not been confirmed. Do not assume the rubber base can remain attached during burnout. Follow the equipment instructions for removal.

Does the package include a casting flask?

No. This listing supplies one rubber base in the selected size, not a flask or casting machine.

Support

For product questions, compatibility assistance, or order support, contact the Tooltos team at sales@tooltos.com. We respond during business days within 24 hours.