Master Blue RTV Silicone Gasket Maker 85g
Master
This product is not available for purchase online.
Features
Create reliable seals with the Master Blue RTV Silicone Gasket Maker 85g, a high-performance gasket maker designed for automotive repairers, mechanics, and DIY enthusiasts. This sensor-safe, low-odour blue RTV silicone cures to a tough, flexible seal, ideal for oil pans, valve covers, thermostat housings, water pumps, and timing gear covers. With a temperature range of -62°C to 316°C, it resists oil, water, antifreeze, and vibration, ensuring leak-proof gaskets for engines and drivetrains. Suitable for sensor-equipped vehicles, it’s WaterMark approved. Usage instructions ensure easy application.
Key Features:
- Sensor-safe gasket maker with blue RTV silicone for automotive use.
- Temperature range of -62°C to 316°C, resists oil, water, and antifreeze.
- Cures to a flexible, waterproof seal for reliable gaskets.
- Ideal for oil pans, valve covers, and water pumps.
Recommended Products
Prime Guard Clear RTV Silicone Adhesive Sealant 328ml
Seal and bond with confidence using the Prime Guard Clear RTV Silicone Adhesive Sealant 328ml, a versatile silicone adhesive sealant designed for DIY enthusiasts, automotive repairers, and contractors. This general-purpose, clear RTV sealant bonds to glass, metal, plastics, vinyl, and more, making it ideal for windshields, door frames, seams, roofs, and electrical insulation. Waterproof and flexible, it withstands temperatures from -59°C to 232°C and resists water, weather, and vibration. Suitable for indoor and outdoor use, it requires a clean, dry surface for application. Usage instructions ensure easy application. Key Features: Clear silicone adhesive sealant for versatile bonding and sealing. Waterproof and flexible, with a temperature range of -59°C to 232°C. Bonds to glass, metal, plastics, vinyl, and more. Ideal for indoor and outdoor applications, non-paintable.
GSA S310 Wet Area Silicone White 300mL
Overview GSA S310 Wet Area Silicone White 300mL is a neutral cure sealant formulated for high-moisture spots like showers, baths and sinks, delivering a tough, flexible barrier that keeps water out and mould at bay. It's the straightforward choice for sealing joints where dampness is a daily fight—reliable gear that holds up in Aussie humidity without yellowing or cracking. Why You’ll Love It Neutral cure means no nasty odours or corrosion on metals and tiles. Built-in mould and mildew inhibitors keep things fresh longer. Superior water resistance stops leaks before they start. Built for Real Work This 300mL cartridge pumps out smooth with a standard caulking gun, curing to a flexible, durable seal that flexes with movement but stays watertight. It's tough enough for the steamy bathroom or greasy kitchen splashback—proper sealant that tradies have been using for years on renos and repairs, no shortcuts. Perfect For Tradies sealing shower screens, vanities or bench joins on site. DIYers waterproofing around baths, sinks or kitchen tiles at home.

VoltFlow Female Insulated Blade Terminals 6.3mm Pack of 14 Blue
Overview The VoltFlow Female Insulated Blade Terminals 6.3mm Pack of 14 Blue are reliable crimp connectors for secure, insulated joins in low-voltage wiring setups. With a 6.3mm blade width and blue insulation suited to 1.5-2.5mm² wire, they're the straightforward choice for automotive, marine or 12V projects where you need a vibration-resistant, colour-coded connection that won't let moisture in—proper gear that keeps circuits humming without shorts or pulls. Why You’ll Love It Insulated nylon sleeve protects against corrosion and shorts, even in damp Aussie conditions. Easy crimp application with standard tools—quick joins that hold tight under vibration. Pack of 14 gives you plenty for multiple jobs or spares in the toolbox. Built for Real Work Copper construction with tin plating for conductivity and rust resistance, plus a funnelled sleeve for hassle-free wire insertion. Rated for 105°C max temp and 250V AC/300V DC, these terminals meet automotive standards for reliable performance in 12V systems—tough kit that's been wiring up utes, boats and trailers without drama, colour-coded blue for 1.5-2.5mm² gauge. Perfect For Tradies wiring lights, sensors or accessories on site vehicles or machinery. DIYers building custom 12V setups, marine harnesses or home automation.

GSA Aluminium Insulation Tape 48mm x 50m
Seal and insulate with precision using GSA Aluminium Insulation Tape 48mm x 50m, a high-performance aluminium insulation tape designed for HVAC technicians, builders, and DIY enthusiasts. Featuring a durable aluminium foil backing and strong acrylic adhesive, this foil tape provides excellent heat and UV resistance, making it ideal for sealing joints in HVAC systems, ducting, and insulation materials. Its hand-tearable design ensures easy application, while the 48mm x 50m roll offers ample coverage for large projects. Perfect for preventing air leaks or securing insulation, it includes clear instructions for reliable use. Key Features: High-strength aluminium insulation tape with foil backing. Acrylic adhesive for secure, long-lasting bonds. Heat and UV-resistant for HVAC and insulation applications. Hand-tearable for quick, tool-free use.

GSA S300 Metal Glass Concrete Silicone Clear 300mL
Overview The GSA S300 Metal Glass Concrete Silicone Clear 300mL is a versatile all-purpose sealant that delivers a tough, flexible bond on metal, glass and concrete surfaces. Neutral cure formula goes on easy with a standard caulking gun, providing a long-lasting waterproof seal that handles movement and expansion without cracking—reliable gear for jobs where you need it to stick and stay put, from window frames to bench joins. Why You’ll Love It Clear finish stays invisible once cured, no ugly lines or discolouring over time. Neutral cure means no harsh odours or corrosion on sensitive metals and glass. Flexible seal moves with the surface, perfect for Aussie heat and settling buildings. Built for Real Work Premium silicone formula that's tough on expansion joints but gentle on application, curing to a durable, waterproof barrier in 24 hours. One 300mL cartridge covers plenty of ground on glass panes, metal flashings or concrete cracks—straightforward kit that's been sealing sites and sheds for years, no fuss, just solid results that hold up. Perfect For Tradies sealing window frames, metal gutters or concrete slabs on site. DIYers fixing glass doors, bench edges or expansion gaps at home.

GSA Gap Attack Gap Filler 440g
Overview GSA Gap Attack 440g is the go-to acrylic gap filler for tradies and serious DIYers who want a clean, flexible seal that actually lasts. It pumps into gaps up to 25 mm, stays flexible, resists water and takes paint perfectly—ideal for skirting, architraves, windows, doors or any crack that needs sealing inside or out. Why You’ll Love It Fills big gaps (up to 25 mm) without sagging or shrinking. Paintable in 1–2 hours so you can finish the job the same day. Water-resistant and flexible—handles movement and weather without cracking. Built for Real Work Australian-made premium acrylic formula that guns on smooth and cures tough. Sticks to plaster, brick, timber, masonry and most building surfaces. Once cured it’s mould-resistant and stays put for years—proper sealant that painters and chippies have trusted on thousands of jobs without callbacks. Perfect For Tradies sealing skirting, cornices, window reveals and expansion joints. DIYers patching cracks, filling around doors or prepping walls for painting.

Sequence Pro Masking Tape General Purpose Utility
Tackle a wide range of projects with Sequence Pro Masking Tape General Purpose Utility 48mm x 50m, a versatile masking tape designed for DIY enthusiasts, painters, and contractors. Featuring a durable crepe paper backing and high-tack rubber adhesive, this general purpose tape ensures clean, sharp paint lines and secure bonding on surfaces like wood, metal, glass, and plasterboard. Ideal for painting, bundling, or temporary repairs, it offers clean removal up to 7 days without residue and is solvent-resistant for added durability. The 48mm x 50m roll is hand-tearable and includes clear instructions for easy use. Key Features: High-tack masking tape for secure, reliable adhesion. Clean removal up to 7 days without residue. Solvent-resistant for painting and general repairs. Hand-tearable for quick, precise application.

MAG 1 Cooling System Stop Leak
Overview MAG 1 Cooling System Stop Leak is a concentrated additive that seals leaks in radiators, hoses, gaskets, and heater cores without clogging the system. Poured directly into the cooling reservoir, it forms a durable seal to prevent coolant loss, restoring pressure and efficiency—reliable gear that patches up overheating woes without a full flush or tow. Why You’ll Love It Quickly plugs small leaks to stop coolant drips and top-ups Safe for all coolant types, including extended-life formulas One-bottle treatment works on cars, trucks, and heavy machinery Built for Real Work Formulated with premium sealants that swell and repair without residue or blockages, this additive handles high-heat and pressure like a pro. It's tough on pinholes and cracks but gentle on pumps and sensors—proper kit for the tradie's overheating ute mid-job, straightforward enough for the driveway fix, just pour in, run the engine, and watch it hold. Perfect For Tradies keeping fleet vehicles running on remote sites DIYers patching radiator issues before bigger repairs

Lanotec Steel Seal Aerosol Rust Protectant 400g
Overview Lanotec Steel Seal Aerosol Rust Protectant 400g is a lanolin-based spray that forms a tough, flexible film to shield steel, iron, and ferrous metals from rust and corrosion. Applied directly to damp or dry surfaces, it penetrates and displaces moisture while providing long-term protection—reliable gear that saves rusted tools or trailers without the need for sandblasting or primers. Why You’ll Love It Works on wet surfaces to stop rust in its tracks during storage Non-toxic, lanolin formula safe for food-grade and marine applications Dries to a clear, non-sticky film that won't attract dust or dirt Built for Real Work Derived from natural lanolin with solvent carriers, this Aussie-made aerosol creates a durable barrier that creeps into crevices and withstands salt spray, humidity, and temperatures from -20°C to 120°C. It's tough enough for the tradie's chain blocks on coastal jobs, straightforward enough for the shed's rusty hinges—no solvents to evaporate, just a solid seal that holds for years. Perfect For Tradies protecting tools, chains, or machinery on site DIYers treating trailers, gates, or underbody parts at home

Sequence Pro Masking Tape 14 Day Blue
Achieve crisp, clean paint lines with Sequence Pro Masking Tape 14 Day Blue 48mm x 50m, a premium masking tape designed for professional painters, DIY enthusiasts, and contractors. This crepe paper blue painter’s tape features a medium-tack rubber adhesive for secure bonding and clean removal up to 14 days, even on delicate surfaces. UV-resistant and suitable for interior and exterior use, it’s perfect for painting, surface protection, or masking wood, metal, glass, and plasterboard. Hand-tearable for easy application, the 48mm x 50m roll includes clear instructions for flawless results. Key Features: UV-resistant masking tape for clean removal up to 14 days. Medium-tack adhesive for secure, residue-free bonding. Ideal for painting and protecting wood, metal, and glass. Hand-tearable for quick, precise application.
Here's What Our Customers Are Saying
Articles

Status Update: Website Upgrade Completion
Our ecommerce upgrade is mostly complete, however it will still take awhile for our store to upload all our inventory, so if you don't find something on our site, it does not mean we don't stock it!

Ecommerce Store Update: Still in Progress!
We’re still fine-tuning the online inventory, so some products may not yet be listed.

Exciting Upgrade to Our Ecommerce Store!
Our ecommerce store just got a major upgrade with a fresh look and smoother navigation! While we’re updating our online inventory, some products may not yet be listed but are available in-store.
Stay in the Know - No Spam, No BS.
We know you're here for great products, not junk emails. Sign up to get exclusive access to product sales, special offers, and new arrivals - all delivered straight to your inbox with zero fluff. We promise to only send you the good stuff, when it matters.
Exclusive Deals
Be the first to hear about flash sales and discounts on your favorite hardware, tools, and garden supplies.
New Products
Stay ahead of the curve with updates on the latest arrivals across our extensive range.
Project Tips
Get expert advice, DIY hacks, and how-tos that help you tackle every task with confidence.
No spam. No BS. Just the best from Khardware.
Sign up today and start saving!
