The Newborn 435-XSP dual-component multi-ratio manual adhesive applicator, also called a two-part or two component applicator, can accommodate cartridges of 300 mL x 300 mL, and 300 mL x 150 mL. It has a high thrust ratio of 26:1 for applying two-component epoxies and other adhesives in various ratios. The 26:1 thrust ratio allows the applicator to be used with very high viscosity materials. The heat-treated piston rod is longer lasting than standard rods, and the push disks screw on and off to allow for the different mix ratios of the adhesive cartridges. Caulking guns, also called caulk or cartridge guns, dispense a controlled flow of products such as caulk, sealants, and adhesives from a tube or cartridge. A manual caulking gun consists of a frame which holds the tube, a trigger, and a rod which moves forward when the trigger is depressed, dispensing the product. Manual caulking guns have a thrust ratio; the higher the thrust ratio, the easier it is to dispense the caulk, sealant, or adhesive. Air-powered or pneumatic caulking guns also have a frame and a trigger, but are used with an air pressure regulator that pushes the product from the tube using air pressure instead of a rod.