The Monarch Mini Gap Filler is a flexible, multi-purpose acrylic sealant designed to fill small gaps and joins where colour matching is required. Our unique shaped cartridge is compatible with the Monarch Mini Compact Caulking Gun, allowing you to access those tight spaces where traditional caulking guns cannot. It is perfect for small projects where a full-size cartridge is not required, resulting in less waste. Available in black, brown and cream.