Everbuild Superflow Sealant Gun – 300ml

The Everbuild Superflow Sealant Gun is one of those tools that makes a difference from the first bead you lay. Built for 300ml cartridges, it delivers smooth, controlled flow with noticeably less hand fatigue than cheaper alternatives. Everbuild’s own claim is that the Superflow is the best sealant gun they’ve ever made, and having used a few guns over the years, it’s not hard to see why they say that.

The trigger mechanism is the headline feature here. A 33% higher pull ratio compared to a standard sealant gun means less effort for each squeeze, which matters a lot when you’re running beads all day on a bathroom fit-out or a curtain walling job. Your hand thanks you by about mid-afternoon.

What Makes the Everbuild Superflow Stand Out

The rotating barrel is something you’ll use more than you expect. Awkward angles, working in a corner, sealing around a bath where the nozzle needs to point somewhere inconvenient — the barrel rotates to meet you rather than the other way around. It’s a small thing until the moment you actually need it, at which point it becomes essential.

The soft grip handle keeps the gun comfortable in colder conditions, when a bare metal or hard plastic frame would normally start to bite. And the non-drip mechanism cuts off flow when you release the trigger, so you’re not chasing a drip down a freshly painted wall before it sets. That alone prevents more mess than most people account for.

Build Quality Worth Noting

This is a gun designed to handle site conditions rather than one careful user. The frame and mechanism are built to take repeated use across different cartridge types without flex or wear becoming an issue early on. It’s not disposable in the way cheap guns often are.

If you’re buying in volume for a team or stocking the van properly, the Everbuild Superflow Sealant Gun is the kind of tool that earns its place and stays there.