Low Viscosity: Ensuring Bubble-Free Casting

Why Low Viscosity Matters

Epoxy resins with a lower viscosity are thinner and spread more easily, allowing air bubbles introduced during mixing or pouring to escape before curing begins. This is especially important for applications like deep pours, larger castings, and detailed moulds, where thicker resins may trap air and create visible imperfections.

Practical Tips for Bubble-Free Casting

• Choose the right resin: Products like EpoxyTable 5-Five and “Trasparente” multipurpose resin offer low viscosity, making them ideal for pours up to their recommended layer thickness.
• Mix carefully: Stir components gently but thoroughly to minimise the introduction of air bubbles, and use a narrow mixing stick to scrape the sides of the container.
• Pours and conditions: Pour in a steady, small stream for deeper layers, and work in a warm, dust-free environment to help bubbles rise and pop naturally.

When This Feature Makes a Difference

If you’re creating tabletops, embedding objects, or producing crystal-clear jewellery, low viscosity is a key factor to prevent bubbles and achieve professional-looking results. It matters even more in deeper pours, where trapped air can be difficult to remove once the resin starts curing.