Any divers use this hull cleaning technique??

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Any divers use this hull cleaning technique??

Created by

Gos2017 > 9 months ago, 11 Sep 2018

Gos2017

NSW

47 posts

11 Sep 2018 2:08pm

Hi all
Found this vid on Youtube:

It's from the States but the diver is using a wide scraper blade to clean the hull and it appears to remove very little (precious and pricey) antifoul. Being time poor I do get a diver in to do my hull sometimes but I fear they are using a brush or similar and removing too much ablative.
Any divers in Sydney use this technique?

Cheers

Gos

Zentosi

4 posts

11 Sep 2018 12:45pm

Is it odd that i find this very satisfying to watch?

Cav30

NSW

121 posts

11 Sep 2018 2:54pm

Gday Gos.

I reckon that is hard antifoul. From memory you have ablative. I wouldnt use metal scrapers on ablative.

We had our hull cleaned once last year. I actually bought some cheap dive gear (second hand from local dive shop) so I could give it a go myself. Watch this space.

Just had it re-antifouled.

We used ablative on the hull (No5) and semi hard stuff (Petite Vivid) on the rudder as the ablative just got washed off.

Its a guessing game really.

Good luck
Ed.

Yara

NSW

1314 posts

11 Sep 2018 3:21pm

Would have to be very hard antifoul, as I cannot see any of the blue in the water as he scrapes. Where he knocks off the shell it is going to foul rapidly (unless he paints it later in the vid).

Gos2017

NSW

47 posts

11 Sep 2018 5:06pm

Select to expand quote

Yara said..
Would have to be very hard antifoul, as I cannot see any of the blue in the water as he scrapes. Where he knocks off the shell it is going to foul rapidly (unless he paints it later in the vid).

Hi Yara
Further into the vid (4.28min) he uses a brush to show the amount of antifoul that is removed. I'm guessing it's ablative. If so, this is a remarkable technique and i need to find someone that uses it!!

Ramona

NSW

7737 posts

11 Sep 2018 6:01pm

Ablative.

stray

325 posts

11 Sep 2018 6:46pm

Ive been using a similar scraper around the waterline with ablative and you only need a light touch so doesnt remove much paint if any.
I also use a standard paint scraper(a new sharp one) to remove a thin layer of old antifoul when on the slip. It works well on ablative when wet and is easier than sanding. Leaves a nice smooth surface too.

woko

NSW

1770 posts

11 Sep 2018 9:21pm

A renders/ concreters pointed trowel, does the job you Beauty !
Pointy bit for pokin around / square ends for back hand hacking and two flat sides for sweeping
and the way the tool has to be held your knuckles are protected, imho it's the tool for the job

w8ingforwind

QLD

259 posts

11 Sep 2018 9:58pm

Select to expand quote

stray said..
Ive been using a similar scraper around the waterline with ablative and you only need a light touch so doesnt remove much paint if any.
I also use a standard paint scraper(a new sharp one) to remove a thin layer of old antifoul when on the slip. It works well on ablative when wet and is easier than sanding. Leaves a nice smooth surface too.

That is a 10 or 12 inc broad knife (plasterers- drywall tool) in the video. they have a lot softer(more flexibility) blade that might be part of the reason he is getting such a nice finish.

Zzzzzz

513 posts

12 Sep 2018 4:55am

I use a hoe works a treat long handle reaches deep down

Ramona

NSW

7737 posts

12 Sep 2018 8:18am

That paint in the video is well and truly spent. Would only get another week or so before it needed another rub down. I presumed the diver was removing shell in preparation of going on the slips. Surprised by the amount of shell on the prop that had been coated with propspeed.

fstbttms

6 posts

18 Sep 2018 1:44am

Unless you are removing shelled animals or other 3-dimensional growth, a scraper (metal or otherwise) is not an appropriate tool for everyday, all over hull cleaning. Not only does a scraper not really clean well, it will remove or damage anti fouling paint unnecessarily. Here's how boat bottoms should be cleaned:

or:

Ramona

NSW

7737 posts

18 Sep 2018 8:23am

Select to expand quote

fstbttms said..
Unless you are removing shelled animals or other 3-dimensional growth, a scraper (metal or otherwise) is not an appropriate tool for everyday, all over hull cleaning. Not only does a scraper not really clean well, it will remove or damage anti fouling paint unnecessarily. Here's how boat bottoms should be cleaned:

Welcome to our little forum Fastbottoms.

fstbttms

6 posts

18 Sep 2018 8:30am

Select to expand quote

Ramona said..

Welcome to our little forum Fastbottoms.

Cheers, mate!

Cav30

NSW

121 posts

19 Sep 2018 6:10am

Fast bum

What is the pad you are using in the first video? I see a star brite one that looks similar. Is it a sponge or scourer?

Also did I notice you using a suction cup to hold yourself in position? V clever.

Finally is that Ablative?

Many thanks
Ed

crustysailor

VIC

871 posts

19 Sep 2018 8:45am

Bunnings sell a suction cup pad that works ok.
I use one in the dingy when cleaning my hulls

psychomub

448 posts

19 Sep 2018 7:06am

I have been using plastic scrapers from Bunnings for years..

www.bunnings.com.au/pure-line-150mm-plastic-scraper_p1610000

They work really well and remove very little antifoul.

Datawiz

VIC

605 posts

19 Sep 2018 10:03am

Select to expand quote

psychomub said..
I have been using plastic scrapers from Bunnings for years..

www.bunnings.com.au/pure-line-150mm-plastic-scraper_p1610000

They work really well and remove very little antifoul.

There's also this one, which is a plastic 250mm curved scraper - costs all of $2.88.
The curve can give you a really good fit in the right locations.
www.bunnings.com.au/builders-edge-250mm-plastic-curved-joint-plaster-knife_p0730314
regards to all,
allan

valo

NSW

309 posts

19 Sep 2018 10:28am

Select to expand quote

Datawiz said..

psychomub said..
I have been using plastic scrapers from Bunnings for years..

www.bunnings.com.au/pure-line-150mm-plastic-scraper_p1610000

They work really well and remove very little antifoul.

Me too.

w8ingforwind

QLD

259 posts

21 Sep 2018 8:07pm

I shave with a razor(when I'm bothered) I scrap the fuzz off my boat with a stainless brordknife. But I spend a lot of time with a stainless brordknife. And I spend a lot of money at proplaster.

sirgallivant

NSW

1531 posts

24 Sep 2018 6:35pm

This is my "shaver", bucks worth of cutting board from Target:

It is soft enough not to scrape off antifoul but is only good for soft growth.

fstbttms

6 posts

27 Sep 2018 3:01am

Select to expand quote

Cav30 said..
Fast bum

What is the pad you are using in the first video? I see a star brite one that looks similar. Is it a sponge or scourer?

Also did I notice you using a suction cup to hold yourself in position? V clever.

Finally is that Ablative?

Many thanks
Ed

It is a 3M Doodlebug pad:[URL=imageshack.com/i/pnuUOtbbg]

[/URL]

DIY suction cup:[URL=imageshack.com/i/pn3wEj8Sj]

[/URL]If memory serves, it was Pettit Trinidad which is a hard paint.

Concepcion

93 posts

27 Sep 2018 4:24pm

I use an Enjo glove and it works better than anything else i've tried. When done I just chuck it into the washing machine (ALONE) and its good as new!

www.enjo.com.au/bathroom-glove.html

ps. my wife doesn't know this

SandS

VIC

5904 posts

27 Sep 2018 8:20pm

Select to expand quote

fstbttms said..

It is a 3M Doodlebug pad:[URL=imageshack.com/i/pnuUOtbbg]

[/URL]

DIY suction cup:[URL=imageshack.com/i/pn3wEj8Sj]

[/URL]If memory serves, it was Pettit Trinidad which is a hard paint.

does the beer go down before or after using the sucker ,or doesnt it matter ?

fstbttms

6 posts

27 Sep 2018 10:30pm

Select to expand quote

SandS said..

fstbttms said..

It is a 3M Doodlebug pad:[URL=imageshack.com/i/pnuUOtbbg]

[/URL]

DIY suction cup:[URL=imageshack.com/i/pn3wEj8Sj]

[/URL]If memory serves, it was Pettit Trinidad which is a hard paint.

does the beer go down before or after using the sucker ,or doesnt it matter ?

Whatever floats your boat, mate.

MrMac

ACT

49 posts

29 Sep 2018 3:20pm

My boat is Quakers Hat Bay and I am told that generally not safe to go in the water there or anywhere in middle harbour. As I have my diving certs can anyone tell me where its is relatively safe and ok to clean my hull?

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