Tips and Tricks for a Smoother Boating Season
By Altex Yacht & Boat Paint – Proudly protecting Aussie boats, coast to coast
For many boat owners on the Gold Coast and across Australia, applying antifoul is one of those “love to hate” jobs. But with the right know-how and a few clever tricks, it can be a smooth, satisfying process that keeps your pride and joy cutting cleanly through the water all season long. At Altex Yacht & Boat Paint, we’ve spent decades helping Aussie boaties get the most from their antifoul—and we’re sharing our top tips to make your next haul-out a breeze.
CHOOSE THE RIGHT ANTIFOUL FOR YOUR BOATING LIFESTYLE
Different boats and usage patterns call for different types of antifoul. If you’re a regular cruiser, or spend most of the time moored, a high-performance ablative like Altex No.5 Plus will keep your hull clean and sleek with minimal buildup. For racing yachts, a harder coating like Pettit Vivid would be better suited. Chat with your local Altex stockist to get the best match for your vessel and usage.
TIMING IS EVERYTHING
Plan your haul-out carefully. Antifoul works best when applied during moderate temperatures—too hot and it flashes off too fast, too cold and it won’t cure properly. On the Gold Coast, early autumn or spring is ideal. Avoid the midday sun—preferably paint early in the morning. Ensure the surface is dry and free from the morning dew. A small amount of thinner may ease application in warmer temperatures. Check the product label or PDS for the appropriate thinner and thinning percentage.
SURFACE PREP IS THE SECRET WEAPON
A good finish always starts with great prep. That means removing old, flaking antifoul, sanding back to a sound surface, and cleaning thoroughly.
ANTIFOUL IS A COATING, NOT A MIST
Apply it thick enough to build a protective layer—check the can for correct film build and coverage rates. Use a roller for even application, and don’t stretch it too far. If you’ve skimped in the past, you’ll know: thin antifoul wears off faster and leaves you vulnerable to early marine growth. Check the product label or PDS for recommended film builds. In most cases two rolled coats plus a third around leading edges and turbulent areas is ideal.
MASK SMARTLY FOR SHARP LINES
If you’re fussy about your waterline (and who isn’t?), use a high-quality tape to mask it off cleanly. Remove tape shortly after the final coat while the paint is still tacky— this avoids tearing or jagged edges. Bonus tip: run a fingertip along the tape edge after applying it to ensure a crisp seal.
MIX AND STIR LIKE A CHEF
Before you pour that first tray, give your antifoul a thorough stir. Pigments and biocides settle at the bottom, and uneven mixing can mean patchy protection. Use a proper paint stirrer or mixing paddle—your boat will thank you.
CHECK FOR COMPATIBILITY
If you’re overcoating an existing antifoul, make sure the new one is compatible. Not all products play nicely together. If in doubt, apply a tie coat like Altex PrimaShield Sealer, or strip back and start fresh.
LAUNCH WINDOW MATTERS
Every antifoul has a re-launch window—too soon and it may not have cured, too late and the surface can be too hard to start ablating. Altex antifouls are formulated for flexibility, but always check the product data sheet for guidance. Stick within the window for best results.
THINK LONG TERM
Keeping your hull clean isn’t just about performance— it’s also about fuel efficiency, reduced emissions, and a longer-lasting boat. Where possible, carry out regular inspections to help avoid expensive surprises.
PARTNER WITH THE PROS
If in doubt, ask your local boatyard or Altex applicator. We support a network of trained professionals who know the products and your local conditions inside out.
Need help choosing your next antifoul? Visit altexboatpaint.com or call your nearest Altex stockist.
Let’s keep your boat protected, and ready to roam.
Smooth sailing from all of us at Altex Yacht & Boat Paint!
Published in print August-December 2025
