- Thrust ratio measures the force applied on the tube piston with each trigger pull.

 

- The thicker the gunned material, the higher the ratio should be.

 

- Typical caulking guns run from a low of a 3:1 thrust ratio up to a high of an 18:1 thrust ratio.

 

- Dual component epoxies, polyurethanes, and construction adhesives all require high ratio guns with anywhere from 18:1 to 26:1 thrust ratios.

 

- Our DIY models have from 5:1 to 12:1 thrust ratios.

 

- Our Contractor Grade models range between 10:1 and 16:1.

 

- Our Professional Grade models have either 18:1 or 26:1 thrust ratios.