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310 ml vs 600 ml caulking gun

Updated: 23 October 2026

You have a 310 ml silicone tube from a UK DIY aisle and a gun whose title says 600 ml, and you want to know whether the tube will simply sit further forward. It will not. A 310 ml vs 600 ml caulking gun choice is a pack choice: rigid cartridges and foil sausages are different systems, and the plunger that suits one often misses the other. Products Compared mapped five amazon.co.uk listings on 21 October 2026 for the [cartridge press comparison](/hub/fillers-adhesives-and-sprays/cartridge-press). This page is the format split, not the score table. We did not measure barrels in a lab. A qualifying purchase can earn a commission at no extra cost to you.

You have a 310 ml silicone tube from a UK DIY aisle and a gun whose title says 600 ml, and you want to know whether the tube will simply sit further forward. It will not.

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What 310 ml means in the UK

A 310 ml cartridge is the rigid tube most bathroom silicone and decorator's caulk use in Britain. The OTT gun names that class: 150–310 ml, 16:1, 730 g, £10.59. It does not claim 400 ml or 600 ml. YATO at £22.26 prints a 51.2 mm bore and a shut-off, not millilitres. A bore is not a 310 ml certificate. The generic frame at £15.11 prints neither. For a bath seal, buy a gun that states 310 ml. The how to use page assumes that match. A 400 ml trade tube is longer, and none of these five rows prints 400 ml.

What 600 ml usually means

On UK trade shelves, 600 ml usually means a foil sausage in a barrel, not a bigger bathroom tube. Some guns are a long rigid barrel for a hard 600 ml cartridge. The title alone does not say which. The only 600 ml row here is GOTOTOP at £23.06, with ten nozzles and a 660 g frame. The star line is 3.1 from 19, and the written sample is not UK-verified. Reviews say the plunger is too large for ordinary cartridges, which fits a dedicated barrel, not a combi. Some snapshots mention Germany-only delivery. A 310 ml tube in that barrel misses the plug and leaks or stalls. Use a stated 310 ml gun for 310 ml tubes.

Combi guns and the trade pattern

A combi gun takes rigid cartridges and foil sausages when the maker lists both. Geocel's Cox Powerflow is that pattern, including 310 ml and 400 ml, and it is not in this five-ASIN table. Read the formats, not the largest number in the title. The GOTOTOP box does not name 310 ml, so £23.06 does not buy a bathroom tube as well. The £10.59 16:1 gun does not buy sausages. The honest split is two tools, or one page that lists both. A 2K gun is a third system, covered on the two-component page.

How this comparison maps

OTT at £10.59 is the 150–310 ml geared gun, and the top pick and the best value when the tube is that size. YATO at £22.26 has a bore and no millilitre line, so try the cartridge before you treat it as 310 ml. The generic at £15.11 states no capacity. LEWFECBO at £26.99 is a twin mortar gun, not a large silicone barrel. GOTOTOP at £23.06 is the 600 ml press. DIY-shed silicone stops at the gun that prints 310 ml. Foil packs stop at a barrel or combi that prints 600 ml sausage. Do not slit a foil pack into a bathroom cradle. The GOTOTOP review notes point to poor fit on ordinary cartridges, and the star line is too weakly tied to the UK to overturn that.

Common questions

Can I use 310 ml tubes in a 600 ml gun?
Not unless the maker lists 310 ml as a supported format, the way a combi gun does. A dedicated 600 ml barrel uses a larger plunger. Reviews on the GOTOTOP listing in our file say that plunger is too large for ordinary cartridges. Those texts are not UK-verified, but the mechanical point stands: if the piston does not meet the cartridge plug, the tube will leak or stall. Buy a stated 310 ml gun for those tubes.
What is a sealant sausage?
A sausage is a foil pack, often 600 ml, that loads inside a barrel. The gun supplies the nozzle arrangement, rather than you cutting a nozzle that is moulded onto a rigid 310 ml tube. Decorators use them on long runs because there is less plastic to throw away and fewer cartridge changes. They need a sausage barrel or a combi. They do not clip into a standard skeleton the way a bathroom tube does.
Do I need a combi gun for both formats?
You need one if you want a single tool for rigid cartridges and foil sausages. The product page has to name both. Geocel's Cox Powerflow is a trade example of that listing style. It is not in our scored set. If you only buy 310 ml silicone, a combi is extra mechanism you will not use. If you only buy sausages, a dedicated 600 ml barrel is enough, provided UK dispatch and the nozzle system are clear.
Which product in this comparison is 600 ml?
GOTOTOP, ASIN B07B23F66R, listed at £23.06 with ten nozzles and a stated 600 ml capacity. The frame is aluminium alloy and plastic, at 660 g. The rating line is 3.1 from 19, without UK-verified review text in the capture. It is not the top pick for bathroom silicone. Confirm the live page still ships to your address before you rely on it.
Is 400 ml the same gun as 310 ml?
No. A 400 ml trade cartridge is a longer rigid tube. Many 310 ml skeletons will not run it to empty, and some will not hold it. None of the five listings we scored prints 400 ml as its capacity. If that is the tube your merchant sold you, filter for a gun that states 400 ml or a combi that includes it, rather than forcing the OTT 150–310 ml cradle.

Related pages

Sources

Public UK sources used for this comparison. amazon.co.uk prices, stars and review counts were taken from the listings on 21 October 2026.

  1. HSE — Solvents in construction (retrieved 21 October 2026)
  2. HSE SR22 — Solvent-based adhesives (small-scale work) (retrieved 21 October 2026)
  3. Geocel — Cox Powerflow combi gun (600 ml) (retrieved 21 October 2026)
  4. Totality Store — sealant cartridge vs sausage (retrieved 21 October 2026)
  5. Adhesive Dispensing Ltd — ADCMB-310CPX dual 310 ml gun (retrieved 21 October 2026)
  6. Everbuild Power Pro 310 ml gun (amazon.co.uk) (retrieved 21 October 2026)
  7. wolfcraft MG 600 PRO (amazon.co.uk) (retrieved 21 October 2026)