The phrase freeze upgrade refers to the verified Adhesive Protocols or Sticky Tools mechanic, not to a separately documented upgrade with that exact name. After Sticky Tools is unlocked, a supported panel or tool stays fixed when it touches the ground or another already fixed object. Do not confuse this with Slick Panel behavior, and treat the supported-object list as version-sensitive.
Use the official mechanic name
Developer FAQ material calls the feature Sticky Tools, while gameplay footage connects it to Adhesive Protocols. Automatic descriptions often say that an object freezes in place after contact, which explains the search phrase but does not establish a distinct Freeze Upgrade. Keeping the official term prevents players from searching the terminal for an item that the accepted sources do not show.
Create a valid contact
Place the panel or tool so it touches the ground or another object that is already fixed. The fixing behavior depends on that contact, so a floating piece or a small visual gap may leave the object loose. Confirm the object no longer shifts under normal collisions before building the next part of the structure on top of it.
Build outward from a stable base
Start with one verified fixed surface and add panels or tools one at a time, preserving contact at every step. This makes it easier to identify the first piece that failed to attach and prevents an entire tunnel from collapsing when products hit it. The technique is especially useful for holding fans and panels in repeatable automation layouts.
Do not confuse Sticky and Slick
Sticky Tools keep supported objects in position when the contact condition is met. Slick Panel refers to low-friction behavior and solves a different transport problem, so the terms are not interchangeable. If a product slides better but the panel itself still moves, verify which upgrade or panel type is active before diagnosing a bug.
Ignore obsolete Demo limits
Early Demo comments reported crashes involving many frozen metal panels and included a player-suggested temporary limit. Those reports are useful historical evidence but do not prove a current release limit or current crash condition. If a modern build fails, record the version and reproduce the issue before applying old Demo advice as though it were official.
Sources used for this answer
These links are the accepted evidence set for this page. Player methods are kept separate from official or developer statements, and unsupported details stay marked 待确认.