Conversion Gel



Conversion Gel is a white gel that enables any surface to have portals placed on them, even if they are not normally portal-conductive. If it is washed off, the portal will sit unchanged where the gel used to be,

According to Cave Johnson, Conversion Gel is made from. This is shown when

Surfaces that are not flat or big enough to fit a portal will not be portal-conductive even when coated in Conversion Gel. This means that Conversion Gel-covered Weighted Storage Cubes will not function as a portal-able surface.