Certification that comes with the bonus of stability &
directional control, for your customers who aren't boat savvy.

Kapten Boat Collars have passed survey every time

Kapten Boat Collars meet the strict National Standard for Commercial Vessels, and all the criteria outlined in NSCV-020, (Part C, Section 6, Subsection 6B, chapter 10).
(10.3.1 - general characteristics):
a) Impervious to water absorption
b) Structurally stable under service conditions; and
c) Chemically inert in relation to structural materials with which it is in contact or other substances with which the buoyancy component is likely to be in contact.

Many customers who use hire-boats are not familiar with driving boats or aware of how careful they must be when moving around so as not to tip it, causing dangerous situations.  Statistics show that commercial hire boats hold the highest percentage of accidents due to collisions with other boats, customers' falling overboard and accidental groundings.

Boat Collars provide Level Flotation on the outside of the hull to give superior stability at the water level, which keep passengers as safe and stable as possible - both when they're driving, and at rest.

Many accidents with commercial boats involve collisions due to inexperienced drivers not knowing how to stop and steer correctly. A Boat Collar acts as a fender by cushioning the impact which minimizes possible damage to the boat and reduces personal injury claims.

By fitting a Boat Collar to your boat, your inexperienced customers will find your boat safe and fun to turn, drive and steer. The boat will have required level flotation and be super dry (no spray), so they'll be more likely to become a return customer after they've had a really enjoyable day out.

Below are some of the commercial boats that have been fitted with Kapten Boat Collars to be recognized & approved for Level Flotaiton by Marine Surveyors.

*Each boat must be individually tested and results may vary due to differences in boat design and composition.

  •  @ Tallebudgera Beach School, Tallebudgera, QLD

​- 2 x 3.7m Horizon Pathfinders
- Boats used as tenders/guide boats to little sailing yachts used by the children at the camps.

  • 1 @ Noosa Luxury Afloat (Houseboat Hire), Noosa, QLD

- 4m alloy boat
- Boat used as a tender to a rent-a house boat and is the only one in their fleet that never sinks when filled with rain.

  • 4 @ Aluminium Boats Australia (Transit Systems), Gladstone, QLD

- 4 x 4.2m fibreglass boats
- Boats are the life-rafts for the large catamaran ferries that transport employees.

  • 4 @ Ulverstone Tasmania Water Supply, Ulverstone, TAS

- 2 x 3m punts + 2 x 3.5m punts.
- Boats used by employees on sewage treatment dams

  • 1 @ Club Crocodile, Long Island Resort, QLD

- 4.2m Ally Craft.
- Boat used to transport guests around the island, and transport supplies to & from resort. (Was able to increase load capacity to include 1 more person - see review below).

  • 1 @ Deep Blue Charters, Sydney, NSW

- 4.6m Stessl, runabout.
- Boat used to transport customers to and from the large wooden fishing/charter vessel

  • 1 @ Swan River Cruise, Perth, WA

- 3m Savage.
- Boat used as life-boat to the big cruise boat.

  • 1 @ Bundaberg Dredges, Bundaberg, QLD

- 4.15m Sea Jay "Red Dog" (pic. right >)
- Boat used to transport workers to and from dredges, and depth soundings in river.

  • 1 @ Dellow Marine, Rockhampton, QLD

- 4.5m Brooker.
- Boat used for salvage work.

  • 1 @ Luxury Afloat Houseboats, Brooklyn, NSW

- 4.5m Hinton, fibreglass.
-Boat is used as tender to house boat. Gunwale fit.

  • 1 @ Sydney Shark Nets, Carlingford, NSW.

- 4.5m Ally Craft Tank, 3mm plate.
- Boat is used as a tender to steel yacht. Gunwale fit.

- 2 x 3m Polycraft Tuff Tenders (pic. right >)
- Boats used as day-hire boats

  • ​1 @ Professional crabber, Agnus Waters, QLD

-4m Clark.
- Boat is used as a pro-crabbing boat. Needed extra flotation due to boat not effectively having any buoyancy.

  • 1 @ Hawkesbury River Charters, Eleebana, NSW

-3m tinnie.
- boat used as tender to hire motor yacht.

  • 1 @ Advanteering Engineering, Perth, WA

​-6m Quintrex, centre console.
- boat used as workboat, against and around pylons & ships.

Boat not tipping over
Boarding is easy, especially when two can be on the one side
Even when trying, these two men could not make their boat flip
Even when trying, these two men could not make their boat flip
Even taking waves/wake the "wrong" way is no drama
Even taking waves/wake the "wrong" way is no drama
A safe family day out on the water.
A safe family day out on the water.


To calculate how much extra flotation your boat needs in order to meet Level Flotation requirements, click the below button, which takes you to the Maritime Safety VIC website, which has the correct formulae.

Review from Club Crocodile

"It is worth noting that the [4.2m Allycraft) is in survey for 5 people, one more than the boat compliance plate states [due to the Boat Collar]. The boat now has dramatically improved stability. In fact [the stability] is more like a tri hull and, as I have previously owned one, that is not a claim made lightly.

"Underway into a head sea the vessel has transformed to a point that it is like a much bigger boat in terms of banging and traditional tinny behaviour. [The Boat Collar] provides a much more comfortable ride that is unbelievably dry due to the design aspects.

"In a large following sea the transformation is equally pronounced, with the vessel maintaining a far more consistent running angle. Especially as you approach the backs of larger swells, the end result being that the bow shows no tendency to plough, but just lift. Thus providing a much safer and predictable ride, the upside being that fuel consumption is also reduced due to the fact that less boat needs to be pushed through the water."

club croc have a Boat Collar

Review from the Tourist Park Ranger for South Stradbroke Island, QLD

Ranger Geoff in his boat with certified level flotation
Ranger Geoff in his boat with certified level flotation

"The performance of the Boat Collar has been outstanding. I have been out on the Broadwater in really rough conditions with a strong southerly blowing (something I would not attempt previously) and made it across to the shops at Runaway Bay bone dry. No more broaching and no more spray in the face.

"I would like to mention two incidents that have really proven the worth of having a Boat Collar . . . The second incident happened on the way back from a shopping trip to Runaway Bay . . . I saw a head bobbing up and down. I went across [in my 4.2m Quintrex Dory] to investigate and found a kite surfer who had run out of wind and was stuck treading water in the channel. To get him on board, I asked him to grab the boat with his left hand, place his foot on the Boat Collar, and  I grabbed his right hand. It was easy to lift him up and in, and the boat didn't tilt sideways at all. We retrieved his kite and board, and I returned him to the beach where his worried friends were waiting for him. They had phoned VMR, and their rescue boat had just arrived at the same beach with yet another stranded kits surfer. At least I saved them another search, as this guy would have been hard to find in the dark, especially in that channel . . . I firmly believe that every tinny should have a Boat Collar fitted."


Or call us now, and we'll help you understand how your boat can
meet Level Flotation requirements. (07) 5441 3636

Office: (07) 5441 3636
Mobile: 0423 499 047
58 Arundell Ave Nambour, QLD, Australia 4560.


Australian Patent # 2010210449. American Patent Application # 13/083,588 - Watercraft Accessory.
Marine Safety Innovations Pty Ltd.
ABN # 53 141 908 385
Australian owned & operated since 2010