sealing hull

[John ShotterParticipant @johnshotter18020]

Hi all i am new to this site i am building my first rc boat the ulises tug i was wondering if anyone could recommend what i could seal the hull with before painting that does not have an odour as both my wife and i have breathing problems when using any non waterbed paints and varnishes many thanks

[John ShotterParticipant @johnshotter18020]

[ashley needhamParticipant @ashleyneedham69188]

Hi John and welcome to the forum.

Deluxe materials Eze-Kote would fit your needs. It is a water based (Acrylic) resin alternative to polyester resin. Although not as hard, it is perfect for sealing hulls on its own or using very fine glass cloth.

being water based it has no detectable odour and brushes are water clean-up.

Ashley

[Ray Wood 3Participant @raywood3]

Hi John,

As Ashley says, I use a similar water based resin,from Graham @ Bucks Composites, and it doesn't crack with multiple coats like sanding sealer 😀

Regards Ray

[John ShotterParticipant @johnshotter18020]

Many thanks they sound ideal will try and get hold of some

[Colin BishopModerator @colinbishop34627]

De Luxe Sand and Seal is an alternative to Eze Cote if you simply want to seal the wood. It is thinner than Eze Cote and not cheap but a little goes a long way. Again, no odour and water clean up.

**LINK**l

Colin

[John ShotterParticipant @johnshotter18020]

Thanks for the replys i was just wondering Ashley what grade of glass cloth would you recommend i have ordered some eze-kote or do you think it is ok to use by its self many thanks

[Dave MilbournParticipant @davemilbourn48782]

This will help answer most of you questions Finishing wooden hulls

Dave M

[ashley needhamParticipant @ashleyneedham69188]

DM has all the answers of course.

For simply waterproofing, Eze Kote on its own is fine, but Glass cloth can be obtained in very fine grades akin to silk which needs very little filling.

Depends.. do you want to strengthen the hull or simply waterproof?? There is nowt wrong with a simple paint undercoat!

Ashley

[Neil Powell 1Participant @neilpowell1]

I'm just wondering if i could use a couple of coats of screwfix yacht varnish

**LINK**

to seal the hull on my plywood bait boat. I will then knock it back before spraying and lacquering???

On a previous version i used screwfix's trade interior varnish, which is believe is very similar to eze cote, over a layer of very fine glass cloth. after the hull was painted i then applied a few more coats of the screwfix varnish. Seemed to be absolutely fine, no leaks throughout the whole time i used it

[ashley needhamParticipant @ashleyneedham69188]

Neil, see the above!    BUT….

Strictly speaking, anything is suitable for simply waterproofing a hull.

All our landing craft for instance have nothing more than Wilkinson's light grey undercoat on them, and they are fine. No sealer, no topcoat.

Most of my boats have nothing but undercoat underneath the paint. Lately I have been using Eezee cote simply as it is easy to use and dries quickly. Obviously the added bonus is that it is a resin and thus made for the job.

Yacht varnish is designed to stay slightly flexible to cater for movement in the wood, and if rubbing down, some time is needed for it to harden properly, 3 or 4 days minimum. Thinned out it would do if you are using more varnish as a finished coat.

Normal undercoat and household gloss on top will be fine. Polyurethane gloss is tough stuff, better than spray cans for something like a bait boat.

Ashley

Edited By ashley needham on 13/01/2020 09:34:09

[Neil Powell 1Participant @neilpowell1]

Posted by ashley needham on 13/01/2020 09:29:49:

Neil, see the above! BUT….

Strictly speaking, anything is suitable for simply waterproofing a hull.

All our landing craft for instance have nothing more than Wilkinson's light grey undercoat on them, and they are fine. No sealer, no topcoat.

Most of my boats have nothing but undercoat underneath the paint. Lately I have been using Eezee cote simply as it is easy to use and dries quickly. Obviously the added bonus is that it is a resin and thus made for the job.

Yacht varnish is designed to stay slightly flexible to cater for movement in the wood, and if rubbing down, some time is needed for it to harden properly, 3 or 4 days minimum. Thinned out it would do if you are using more varnish as a finished coat.

Normal undercoat and household gloss on top will be fine. Polyurethane gloss is tough stuff, better than spray cans for something like a bait boat.

Ashley

Edited By ashley needham on 13/01/2020 09:34:09

Thanks Ashley

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