Please select your home edition
Edition
Allen Sailing

10 days left to win back up to (NZD)$1,000 of your Antifoul cost with Altex Coatings

by Abbie Clark 20 Jan 2022 19:59 PST 21 January 2022
Altex Hydrocoat antifoul © Altex

The opportunity to win back up to (NZD)$1,000 of the cost of your Altex Coatings Boat Paint or Pettit Vivid or Pettit Hydrocoat branded Antifouling finishes on 31st January. However, there is still time to send your proof of purchase to be in the draw.

Simply send either a copy or image of your proof of purchase, invoice or receipt, to Altex Coatings competition email or Facebook messenger and you're in to win the cost of your antifoul loaded onto a pre-paid card! The Altex antifoul paints included in the promotion include No.5; No.5 Plus; Seazone 60; Pettit Antifouling Paint and Hydrocoat.

To see more details visit altexboatpaint.com

Altex Coatings Ltd specialises in the formulation, manufacture, and specification of high performance marine protective coatings throughout Australasia and the South Pacific. Professional and knowledgeable service, enduring customer relationships, providing world-class products backed by world-class technology for hard wearing marine environments we have the coating system for your asset

Here's some helpful tips from the technical team at Altex Coatings, on how to get the best results from their fine products.

For new anti-fouling to adhere to old anti-fouling - and work - there is one major prerequisite: Compatibility.

To be compatible for recoating, the surface must be known to meet the following criteria:

  • 1. Be Clean - free of all slime, shell, and other foreign matter (including sanding dust, if applicable).
  • 2. Be Sound - no cracking, spalling, laminating or “over-thickness” areas.
  • 3. Be Chemically Compatible - there should be no adverse reaction between new and old coatings, either at the time of application or whilst in service.

Items 1 and 2 above are within the control of the boat owner/applicator/contractor. Item 3 – please consult with the FREE AY&B Technical Services Dept or via our website if you cannot determine what has previously been used, then it is advisable to either full seal it off with PrimaShield Antifouling Sealer or fully remove.

Be Clean: Excellent results will be achieved by employing one of the two cleaning processes below:

  • Either: waterblast immediately after slipping with 5,000 psi to remove ALL growth, slime and hydrolysed (spent) antifouling
  • Or: waterblast immediately after slipping with 2 -3,000 psi to remove MOST growth, slime and hydrolysed (spent) antifouling AND then thoroughly wet sand all surfaces with 80 grit, and plenty of fresh water to remove the last residues of slime, salts, shell growth and hydrolysed antifouling.

The surface, once dry, will be free of any antifouling dust – wipe the surface with your hand, if your hand comes away clean, then the surface is generally well prepared.

Be Sound: A sound surface is one free of cracks, lumps, spalls etc. that requires no further preparation before recoating. Beware of excess season to season build-up of anti-fouling as this can lead to cracking and spalling, even though the surface appears sound. As a rule-of-thumb, it is advisable to strip back every three or four slippings to prevent build-up of old coatings.

Cracking often does not show up for several days after slipping, even though it can occur within hours. Cracking is induced by several factors such as excessive thickness of the total installed anti-fouling, excessive thickness of any one application, less than perfect adhesion of the anti-fouling system to the substrate and/or contamination between coats of anti-fouling.

This tendency to crack is a dynamic situation which once started will continue to its final undesirable conclusion. Such dynamic failures often show up as a total cracking and spalling of the entire anti-fouling the first slipping after a previous “perfect” slipping, cleaning and recoat. Hence the need for attention to detail and the recommendation to strip the anti-fouling system from time to time to prevent build-up.

Be Compatible: Altex No.5 and Sea~Zone 60 Antifouling may be applied over most properly prepared antifouling’s, but with notable exceptions. All acrylic tin copolymer antifouling’s should ideally be stripped, however it is possible to prevent tin-leaching and stabilise the surface for re-coating by applying two roller coats of AY&B PrimaShield Antifouling Sealer. “Singapore” and soluble matrix types will need to be thoroughly sanded to remove spent matrix skeleton and may also require sealing with AY&B PrimaShield Antifouling Sealer.

Pettit Vivid Antifouling can be applied over most properly prepared aluminium safe antifouling’s using the surface preparation outlined above.

Sea~Zone 60 may be applied over most properly prepared cuprous oxide based antifouling’s using the surface preparation outlined above, however, we recommend that greater attention to detail be employed to ensure a very stable substrate prior to overcoating.

When in doubt, strip the existing anti-fouling back to the bare hull or sound primer barrier system and treat as for new work.

A variety of cleaners and primers are available from your Altex Yacht & Boat Paint Distributor, as well as the AY&B Antifouling brochure which lists the products available, the coating system to use.

Please note that No.5 / HydroCoat / Sea~Zone 60 Antifouling’s are not suitable for use on aluminium alloy surfaces. Please refer to Vivid Aluminium Safe Antifouling.

We recommend to refer to individual datasheets (available on our web site) for specific application, as no two antifouling are the same. Our Technical team can assist your product selection and let you know your closest reseller. Available from all leading chandleries, marinas and retailers across Australia.

Don’t forget to check out the summer promo! altexboatpaint.com

Related Articles

Snipe Europeans 2025 at Vilamoura, Portugal overal
Epic week of racing concludes After an extraordinary week of competitive sailing and unforgettable moments ashore, the Snipe European Championship 2025 came to a close with a series of challenging and exciting races. Posted on 13 Sep
2025 Star Worlds at Split, Croatia overall
Paul Cayard and Frithjof Kleen crowned champions in a final-race thriller After six fiercely contested races across the waters of the Split Channel, Paul Cayard and Frithjof Kleen have been crowned Star World Champions, sealing the title on the very last race of the championship in one of the most thrilling finishes. Posted on 13 Sep
The Ocean Race Europe Leg 5 Day 7
Meilhat's Biotherm leads the way on the Road to Boka Bay Paul Meilhat's Biotherm (FRA), the overall leader of The Ocean Race Europe, has now taken the lead on the sixth day of the race's fifth leg from Genova, Italy to Boka Bay in Montenegro. Posted on 13 Sep
Switch Global Championships at Lake Garda Day 2
Plenty of surprises on another spectacular day Another 3 races were completed on the second day of competition at Fraglia Vela Malcesine for the Switch Global Championships. The typical afternoon breeze of Lake Garda blew up to 15 knots, making the racing increasingly spectacular. Posted on 13 Sep
Entry open for BVI Spring Regatta 2026
The Scrub Island Race will kick off the Sailing Festival on Tuesday, March 24 Registration has opened for the 2026 BVI Spring Regatta & Sailing Festival, one of the Caribbean's top regattas. The event has moved forward a week from previously published dates and will take place March 23-29. Posted on 13 Sep
2025 ORC Double-Handed Worlds concludes
Mia Gioia, Colombre and Altissimus are the new champions in Monfalcone Fifty-five teams representing ten nations gathered in the Gulf of Trieste this week for the ORC Double-Handed World Championship 2025, hosted by Yacht Club Monfalcone at Marina Monfalcone in collaboration with the Offshore Racing Congress (ORC). Posted on 13 Sep
Racing & Events Manager role in Dubai
Dubai Offshore Sailing Club is looking for a Racing & Events Manager Dubai Offshore Sailing Club (DOSC), one of the Middle East's most established and internationally recognised Sailing Clubs, is inviting applications for the role of Racing & Events Manager. Posted on 13 Sep
SailGP: Brits win French event
Day 2 of the Sail Grand Prix in Saint-Tropez has been cancelled due to forecast thunderstorms Day 2 of the Rockwool France Sail Grand Prix in Saint-Tropez has been cancelled due to forecast thunderstorms expected to impact the area during scheduled racing. Posted on 13 Sep
Rolex New York Yacht Club Invitational Cup Day 4
A Van-Tastic Day of Racing Lifts Canadian Club to Second In preparation for the 2025 Rolex NYYC Invitational Cup, the Royal Vancouver Yacht Club acquired an IC37 in the hope that better familiarity with the regatta's platform would lift the team into podium contention after a 12th in 2021 and a ninth in 2023. Posted on 13 Sep
J/24 Worlds 2025 in Plymouth, UK Day 4
Michael Goldfarb's “War Canoe” is on the attack After a 3 hour delay to allow the various warships and ferries to come and go, Plymouth Sound emptied and 20knots of breeze welcomed the J24 fleet for day 4 of the Worlds Posted on 13 Sep
V-DRY-XSea Sure 2025Lloyd Stevenson - AC INEOS 1456x180px BOTTOM