The Dripless HR900 Industrial Grade High Ratio revolving frame adhesive applicator can accommodate 29 oz. cartridges and has a thrust ratio of 26:1 for applying very high viscosity epoxies and other adh...

Buy Now From Amazon

The Dripless HR900 Industrial Grade High Ratio revolving frame adhesive applicator can accommodate 29 oz. cartridges and has a thrust ratio of 26:1 for applying very high viscosity epoxies and other adhesives. The revolving frame can rotate 360 degrees to maintain bead orientation when caulking around corners. Each pull of the trigger advances the cartridge by 5.5 mm. The steel gripper plates provide durability, and an adjustable screw that cuts thrust gaps provides bead control.

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.

Dripless, Inc. manufactures caulking guns and caulking and painting accessories. The company, founded in 1992, is headquartered in Santa Rosa, CA.



  • DRIPLESS SOLUTION: The Industrial Grade High Ratio Adhesive Applicator is preferred by industry professionals. A 24:1 thrust ratio is perfect for big jobs with high viscosity epoxy and adhesives. Pull the trigger for reliable consistent bead control.
  • STURDY & EFFICIENT: Easy to handle, get into a rhythm and pull the trigger for an easy job. Even when gunning thick materials, this gun is tough and works hard to prevent your wrist and fingers from being stressed and strained.
  • ULTIMATE STRENGTH: The steel frame rotates 360 degrees to maintain the bead orientation when gunning around corners. This gun’s twin steel gripper plates provide greater durability while the adjustable screw cuts thrust gaps to provide bead control.
  • VERSATILE: Don’t get down—hook this to a ladder and use the seal punch tool that is built into the side to open 29 oz cartridges without a knife. The 24:1 thrust ratio provides extra power for high viscosity materials like epoxies and other adhesives.
  • INDUSTRY ORIGINATOR: A trusted brand since 1992, Dripless manufactures innovative, premium caulking and dispensing guns for the Contractor, Tradesmen and DIY Enthusiast. They stand behind their high quality, affordable and well-made tools 100%.
  • DRIPLESS SOLUTION: The Industrial Grade High Ratio Adhesive Applicator is preferred by industry professionals. A 24:1 thrust ratio is perfect for big jobs with high viscosity epoxy and adhesives. Pull the trigger for reliable consistent bead control.
  • STURDY & EFFICIENT: Easy to handle, get into a rhythm and pull the trigger for an easy job. Even when gunning thick materials, this gun is tough and works hard to prevent your wrist and fingers from being stressed and strained.
  • ULTIMATE STRENGTH: The steel frame rotates 360 degrees to maintain the bead orientation when gunning around corners. This gun’s twin steel gripper plates provide greater durability while the adjustable screw cuts thrust gaps to provide bead control.
  • VERSATILE: Don’t get down—hook this to a ladder and use the seal punch tool that is built into the side to open 29 oz cartridges without a knife. The 24:1 thrust ratio provides extra power for high viscosity materials like epoxies and other adhesives.
  • INDUSTRY ORIGINATOR: A trusted brand since 1992, Dripless manufactures innovative, premium caulking and dispensing guns for the Contractor, Tradesmen and DIY Enthusiast. They stand behind their high quality, affordable and well-made tools 100%.

Similar Products

Sashco Pre-Caulking Filler Rope Backer Rod, 1/2-Inch x 100-Feet, GreySashco Pre-Caulking Filler Rope Backer Rod Roll, 50' Length x 1Sashco Pre-Caulking Filler Rope Backer Rod Roll, 100' Length x 1/4Dripless HR300 Industrial Grade High Ratio Adhesive Applicator, 10 oz. Cartridge Capacity, 26:1 Thrust Ratio3/8Sashco Pre-Caulking Filler Rope Backer Rod Roll, 100' Length x 3/81/4Sashco 45153 Log Builder Sealant, 29-Ounce Cartridge – Tan