Silicone Sealant 380ml C4 Large Tube Nozzles Pack of 6

Sealants and Tools Direct - Silicone Sealant 380ml C4 Large Tube Nozzles Pack of 6

MPN: NOZ380ML6

Replacements packed of 6

Overview:

Sealants & Tools Direct Silicone Sealant 380ml C4 Large Tube Nozzles (Pack of 6) are purpose-made replacements for large trade 380ml cartridges, ideal for keeping bigger tubes working cleanly and efficiently on site. Designed specifically for 380ml to 400ml C4 sealant, adhesive and large caulk tubes, they’re a practical choice for trades who regularly use higher-volume cartridges for longer runs and repeat applications.

The solid trapezoidal Tr 25 x 3 thread provides a secure, stable connection to the cartridge, helping reduce the risk of the nozzle working loose during continuous use particularly helpful when applying thicker materials or when moving quickly between joints. Manufactured from quality HDPE, these nozzles offer dependable durability and are less brittle than many cheaper alternatives, making them well suited to the knocks and drops of everyday use in vans, workshops and on-site toolboxes and do not break when cut with a knife.

Key Features

• Pack of 6 replacement nozzles for large C4 trade cartridges

• Fits 380ml to 400ml C4 sealant, adhesive and large caulk tubes

• Quality HDPE construction for durability and reduced brittleness

• Solid trapezoidal thread for secure cartridge mounting

• Helps maintain clean, controlled application on larger tubes

• Not compatible with standard 290ml–310ml cartridges (310ml bathroom sealant type)

Specifications

• Product Name: Sealants & Tools Direct – Silicone Sealant 380ml C4 Large Tube Nozzles (Pack of 6)

• MPN: NOZ380ML-6

• Pack Size: 6 nozzles

• Cartridge Size Compatibility: 380ml–400ml C4 (large trade cartridges)

• Thread Type: Trapezoidal

• Thread Size: Tr 25 x 3

• Material: HDPE (high-density polyethylene)

Typical Applications

• Replacing damaged or missing nozzles on 380–400ml C4 cartridges

• Trade sealant application where large tubes are used

• Cartridge-applied adhesives in larger format tubes

• Large caulk tube dispensing for maintenance and fitting work

• Keeping spares in vans, site boxes and workshops

How to Use

• Check your cartridge is a large C4 380ml / 400ml type (not a standard 310ml tube).

• Remove the existing nozzle and clean the cartridge thread if needed.

• Screw the nozzle firmly onto the cartridge using the Tr 25 x 3 thread.

• Cut the nozzle tip to the bead size and angle you require.

• Apply as normal and replace the nozzle if it becomes blocked or damaged.

Sealants & Tools Direct 380ml C4 Large Tube Nozzles – Key FAQs

• Will these fit standard 310ml bathroom silicone tubes?
  No. These are for large C4 trade cartridges (380–400ml) and will not fit standard 290–310ml tubes.

• What cartridge sizes are these nozzles designed for?
  They’re designed to fit large 380ml to 400ml C4 sealant, adhesive and large caulk cartridges.

• What thread do these nozzles use?
  They use a solid trapezoidal thread, Tr 25 x 3, for secure mounting on compatible cartridges.

• Are the nozzles durable?
  Yes, they’re made from quality HDPE, which is less brittle than many lower-cost nozzle plastics.

• How do I confirm I need a C4 nozzle?
  Check the cartridge size (380–400ml) and the larger C4 thread type use the product image as the best guide before ordering.

These C4 nozzles are great for a wide range of professional applications, including sealing movement joints, perimeter sealing around windows and doors, panel and cladding work, roofing and guttering tasks, general construction sealing, and cartridge-applied adhesives for fitting and bonding jobs. They’re also ideal for maintenance teams and installers who want to keep spare nozzles ready to replace split, blocked or damaged ones without delaying the job.

Simply fit to the correct large C4 cartridge and cut the tip to suit the bead size you need for neat, controlled application. Please note: these nozzles are only for large C4 cartridges and will not fit standard 290ml–310ml tubes used for typical bathroom silicone always match to the larger trade tube size before ordering.