Do These Moulds Support Deep Resin Pours?

If you’re new to resin crafts or considering making your own coasters, you might wonder whether silicone coaster moulds can handle deep resin pours. Here’s what you need to know for getting the best results from your moulds.

How Thick Can You Pour Resin in Coaster Moulds?

Most silicone coaster moulds are designed for classic or shallow pours, typically matching the standard thickness of drink coasters. For example, the “Four in One” Silicone Coaster Mould has a height of 0.8 cm, while others, like the 8.8 cm and 13 cm round options, are similarly shallow. Attempting to pour deeper layers risks overflow or uneven curing, and could affect the finish or clarity of the resin.

Best Practices for Pouring Resin into Coaster Moulds

Always check the mould’s maximum height. Most coaster moulds accommodate resin pours between 0.8 cm and 1.1 cm.
For functional coasters, it’s recommended to start with a clear, heat-resistant resin layer (around 3mm thick) as a base for added durability.
Avoid filling the moulds above their edge to prevent spillage and ensure a flat, usable coaster.
Let each layer cure thoroughly if you wish to add decorative touches in stages.

When Maximum Thickness Matters

If you plan to embed larger items, use multiple colour layers, or want thicker, more robust coasters, keep in mind the mould’s depth. Silicone coaster moulds are best suited to standard coaster thickness—if your project requires deeper pours, consider using moulds specially designed with greater height or custom-mould solutions.

Related products

While standard silicone coaster moulds do not support deep resin pours, they are ideal for traditional coasters and creative resin art within their depth limits. For more inspiration and a full range of suitable moulds, visit the Silicone Moulds for Coasters hub page.