What is the mixing ratio for deep pour epoxy resin?

Standard Mixing Ratios for Deep Pour Epoxy

Most deep pour epoxy resins are mixed by weight in a specific ratio. A common formulation is 100 parts resin to 55 parts hardener (100:55 by weight). However, always refer to your chosen product’s label for the precise instructions, as even small differences can affect curing and clarity.

• For EpoxyTable 5-Five, the recommended mixing ratio is 100 parts resin (A) to 55 parts hardener (B) by weight.
• Using scales for measurement is more reliable than using volume for deep pours, due to the difference in density between resin and hardener.

Practical Tips for Mixing Epoxy Resin

Accurate dosing ensures a successful pour and prevents sticky or tacky finishes. Choose a measuring container with clear graduations, such as the 2L Graduated Measuring Cup, and always mix thoroughly, scraping the sides and bottom of your container. Stir slowly to minimise bubbles, and mix for at least 3-5 minutes until the blend is uniform and clear.

When Accurate Mixing Ratios Matter

Adhering to the manufacturer’s mixing ratio is especially important for thick castings and large-volume projects such as tabletops, river tables, or block castings. Inaccurate ratios can result in improper curing, cloudy areas, or compromised structural qualities. Always double-check your calculations before starting your pour for professional, reliable results.