Always check the labels on the containers to verify BASE:SOLIDIFER volume ratios.

If PART using BASE:SOLIDIFER - ENSURE that the mixing implements (Spatula) do NOT come into contact with EACH other in the product containers as this will cause a reaction and make the reaming product un-usable.

Double mixing - after initial mixing on either mixing board or container - move mixed product to new board / area on board and re mix with clean mixing implements. If being mixed in a container, pour into new container and re mix with new mixing implements. This ensure that ALL product is mixed and that there is no UNMIXED material left on either the mixing medium or mixing implements.

A common source of error: Un-mixed material left on container wall / bottom. Un-mixed material on the blade of mixing implement.

When mixing the PASTE type products, then when asked for a ratio of say 3:1, eyeball assessment is satisfactory.
Solidifier is always a ratio of :1.