When you're tackling jobs on the car, boat, or mower, a reliable grey RTV silicone liquid gasket is a must-have in your toolkit, and Threebond's 50g Super Sealer Grey delivers the goods. Whether you're sealing up a gearbox after a mission in the shed or fixing that slow oil weep on your daily driver, this stuff sticks fast, stays put, and handles the heat. It’s a no-fuss, no-drama solution that gets the job done right the first time, just the way we like it here in Aotearoa.

Unlike cheaper sealants that crack under pressure, this grey RTV silicone liquid gasket laughs in the face of extreme heat, oil, fuel, and coolant exposure. It’s also non-corrosive and oxygen sensor safe, making it a go-to for modern engines and late-model gearboxes alike. Perfect for the Kiwi tradie, home mechanic, or anyone who prefers to DIY it and do it once, this sealant holds its own whether you're fixing the family wagon or giving your track car some love before the next spirited drive through the Coromandel.

From Queenstown workshops to backyard garages in Whangārei, this grey RTV silicone liquid gasket has earned a solid rep for versatility. Its easy-to-apply formula makes it ideal for a wide range of sealing tasks, from off-road rigs to marine engines. Wherever you are in the motu, this is one small tube that punches well above its weight. It’s tough, tidy, and ready to go wherever your next fix-up mission takes you.

Features & Benefits

• High Temp Resistance – Handles the heat without cracking, sagging, or giving up, even during those long summer roadies or track sessions.

• Oil, Fuel & Coolant Safe – Stays strong and leak-free, even in oily or wet conditions, perfect for NZ’s unpredictable weather and muddy missions.

• Sensor Safe & Non-Corrosive – Gentle on modern engine components and won’t corrode metal or sensors over time.

• Multipurpose for Engines & Gearboxes – One sealant for all your mechanical sealing jobs, sweet as for simplifying your toolkit.

• Quick Setting Formula – Get the job done faster with less waiting around, whether you're in the driveway or deep in the bush.

• Compact 50g Tube – Just the right size to chuck in your glovebox, tackle box, or toolbag without taking up space.

Life in NZ throws all sorts at us, coastal corrosion, four-seasons-in-a-day weather, and rough back roads. That’s why the grey RTV silicone liquid gasket from Threebond is built to meet the needs of real Kiwis. Whether you’re a tradie fixing up the work ute, a weekend warrior keeping the boat sealed tight, or a DIY legend sorting out your ride before a camping trip, this sealant’s made to handle whatever you throw at it, rain, shine, or sideways.

Technical Specifications

What’s Included

• 1x 50g Tube of Threebond Super Sealer Grey RTV Silicone

• 1x Nozzle for easy, precise application

• Packaging with usage and safety instructions (in plain English, no guesswork)
  

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