Silicon Rubber Ring

Product Name: Silicon Rubber Ring – Jewellery Investment Casting Seal Ring
Material: Made from high-quality heat-resistant silicone rubber
Application: Used for sealing flasks to sprue bases during jewellery casting
Design: Flexible, durable, and provides airtight sealing to prevent leakage
Sizes Available: Compatible with different flask diameters (small, medium, large)
Features:
Heat-resistant and reusable
Provides perfect grip between flask and base
Prevents investment slurry from leaking