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Black and blue dripless caulk gun with plastic half barrel and metal frame

Westward

Westward 13J315 Dripless Caulk Gun 10 oz 12:1

SKU CH-R7H3-1FZYW

A dripless caulk gun with a 12:1 thrust ratio for 10 oz cartridges, featuring a revolving half-barrel frame, smooth-rod plunger, and built-in ladder hook, spout cutter and puncture tool

  • 12:1 thrust ratio delivers strong dispensing force
  • Dripless mechanism stops material flow when trigger releases
  • Revolving half-barrel frame eases cartridge changes
  • Built-in ladder hook keeps tool secure on site
  • Integrated spout cutter and puncture tool speed prep

10 oz Dripless Caulk Gun

The Westward 13J315 is a manual dripless caulk gun built for 10 oz cartridges. Its 12:1 thrust ratio delivers steady pressure for consistent bead control. The revolving half-barrel frame lets the barrel rotate for smooth application around corners. A plastic barrel and metal frame combine durability with reduced weight.

12:1 Thrust Ratio Limits

The 12:1 ratio suits standard latex, silicone and acrylic sealants in 10 oz tubes. Higher-viscosity adhesives or cold-weather materials may require greater force than this mechanism provides. The smooth-rod plunger prevents the dripping common with ratchet-rod designs but does not increase maximum output pressure. The plastic barrel can flex slightly under heavy load, which may affect precision on very stiff compounds.

Compatibility Checklist

Confirm your sealant cartridges are 10 oz size; larger or smaller tubes will not seat correctly in the half-barrel. Verify the revolver frame clears your work area, especially in tight corners or overhead. The included ladder hook, spout cutter and puncture tool add convenience but do not alter the gun’s cartridge fit. California Proposition 65 warnings apply to this product.

Highlights

  • 12:1 thrust ratio delivers strong dispensing force
  • Dripless mechanism stops material flow when trigger releases
  • Revolving half-barrel frame eases cartridge changes
  • Built-in ladder hook keeps tool secure on site
  • Integrated spout cutter and puncture tool speed prep

Specifications

BrandWESTWARD

Questions about this item

How do I choose the right thrust ratio for my caulking jobs?

The 12:1 thrust ratio multiplies your hand force twelve times, making it suitable for standard 10 oz cartridges of latex, silicone or acrylic sealants.

What does the 12:1 thrust ratio deliver in everyday use?

It provides enough mechanical advantage to extrude typical construction sealants smoothly without excessive hand fatigue on a 10 oz cartridge.

Which cartridge standard does the half-barrel frame accept?

The revolving half-barrel frame is sized for 10 oz cartridges and rotates to keep the bead aligned around corners.

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