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Thrust Ratio Finder
Thrust ratio is the mechanical advantage a cartridge gun gives you – like a lever. Set how thick your adhesive is and see the thrust class that moves it without stalling or over-forcing.
Runny sealantGeneral 2KThick filled epoxy
Recommended thrust class
12:1 – 18:1
A mid thrust class handles most general two-component adhesives and panel-bond pastes.
Match this to an Ebestron gun →| Material | Thrust class |
|---|---|
| Light / runny sealants, low-viscosity acrylics | 6:1 – 10:1 |
| General 2K adhesives, panel bond | 12:1 – 18:1 |
| Thick, filled structural epoxy / high-ratio PU | 24:1 – 26:1+ |
A higher thrust ratio is not automatically better – light materials become hard to control with too much force. Ranges follow public industry references (newborncaulkguns.com, ssf-tw.com).
