Water based epoxy

[stuhaynes]

I bought some about 2 years ago to pre-treat a wooden clinker hull prior to painting. The only problem was that it cost a bomb! Next season I want to treat parts of my own boat, but I'm looking for something cheaper.

Has anyone found a cheaper water based epoxy that works?

 

[pelissima]

You most probably mean water based varnish

 

[macd]

You most probably mean water based varnish

...or not

 

[pelissima]

...or not

I love this forum

 

[oldsaltoz]

Great stuff, I use it every day in the waterproofing of new homes, wet areas like showers and full floors on upper floored buildings.

50/50 mix, comes in 10 kg drums any you only need a single coat.

I get at trade price for just over AU$500.00 so not cheap, but it goes a very long way.

Good luck and fair winds.

PS Doing a few test bits to see how well it performs in a lay up, will test to destruction and compare to the figures I have from past tests, also done to destruction.

 

[lw395]

I'm not aware of any suitable water based epoxy.
When you look at it, West or SP is not much more expensive than paint per kilo.
What part of your boat are you wanting to epoxy and why?
Why water based?
Epoxy is to keep water out mostly?

 

[ianat182]

There used to be a company at Warsash called Polybond -later Corrosion Ltd, where my mother worked in the 70's, that had a waterbased epoxy product which I used to coat my old polystyrene Puffin dinghy's transom and aft fuel tank areas; this was to prevent the dissolving of the polystyrene by any petrol spillage.
It could be applied as a paint(like a flowcoat) or over fibreglass cloth as I did, to make a boxed area for fuel tank ,and drips from the Seagull's carburettor.
I cannot remember the name of the product but I believe SP Systems took the company over and may have kept the product on their list.



ianat182

 

[stuhaynes]

I'm not aware of any suitable water based epoxy.
When you look at it, West or SP is not much more expensive than paint per kilo.
What part of your boat are you wanting to epoxy and why?
Why water based?
Epoxy is to keep water out mostly?

Hi lw395

The reason I want a water based based epoxy is because my mahogany hull is now more than 60 years old and I have small areas above the WL that are a little soft and hold a little water. As the temperature rises the water expands and causes blisters.

I used a product 2 years ago that was very expensive (and water based) on someone elses boat. It took 3 coats, 2 diluted and one neat out of the tin. Appears to have worked well. It was, however, so expensive that I can't help but feel that there must be a cheaper product that will do the same job.

I've used Ronseal wet rot cure in the past, but it is not water based, so it can't 'bind' with the moisture content of my timbers. Once treated the surface is painted in the normal way, and hopefully won't blister!

 

[lw395]

I think, if you hope to epoxy seal the surface, the wood needs to be dry.
Have you considered a water based polyurethane?

Whatever the coating, once it is impervious, if there is enough water behind it, that water will gather behind the coating if it doesn't evaporate out of the other side of the wood.

I've used waterbased varnish on various woods and been fairly impressed, although it takes a while to fully cure sometimes.

Maybe getting the wood as dry as possible and then using epoxy thinned with alcohol would give good penetration?

More questions than answers I'm afraid.

 

[sarabande]

yer 'tiz, muckers !


Water-based epoxy.

http://www.antel-uk.co.uk/tds/waterbased-epoxy-coating.html

 

[JONDAVIS]

water based epoxy

I think what you are looking for is Resoltech 1010 it seems to fit the bill ,not sure about cost or if there is a British agent

 

[wilkinsonsails]

Resotech is a brilliant product, we have used it for sealing ply bulkheads where the ply has delaminated and split the veneers.due to water ingress.Once the bulkhead has been sealed ,its then possible ( care required ) to inject and reglue veneers with an ordinary epoxy product provided its a reasonable viscosity.
Cindy

 

[stuhaynes]

yer 'tiz, muckers !


Water-based epoxy.

http://www.antel-uk.co.uk/tds/waterbased-epoxy-coating.html

Hi Sarabande

I emailed these just a couple of hours ago, and they replied almost immediately. This is the response.

"----- Original Message -----
From: Antel Ltd
To: Stewart Haynes
Sent: Thursday, December 06, 2012 5:48 PM
Subject: Re: Website Enquiry


Hello Stewart

Thank you for your enquiry,

Antel water-based epoxy coating has been used on many occasions for the coating of wooded boat hulls.

I would recommend a 3 x coat application, the first coat to be thinned by 10 % to act as a primer, subsequent coats to be applied in standard concentration. The re-coat time to be 24 hours.

I hope this information is of assistance to you.

Regards

Julian Parris


Antel Limited


W: www.antel-uk.co.uk
E: mail@antel-uk.co.uk
T: +44 (0) 23 9285 6110
F: +44 (0) 23 9281 1426"

The cost is a fraction of Resoltech price, which is the one I used 2 years ago

I think what you are looking for is Resoltech 1010 it seems to fit the bill ,not sure about cost or if there is a British agent

Hi Jon

You know all about this because of your kind PM>

Resotech is a brilliant product, we have used it for sealing ply bulkheads where the ply has delaminated and split the veneers.due to water ingress.Once the bulkhead has been sealed ,its then possible ( care required ) to inject and reglue veneers with an ordinary epoxy product provided its a reasonable viscosity.
Cindy

Hi Cindy

I was impressed with the Resoltech product which was bought through Tradboats.com. They don't seem to list it now. I wasn't the one paying for it - I just recall that it seemed to cost a fortune.

The product that Sarabande mentions is about £23 a litre, much more affordable. Now I'd like to find someone with first hand knowledge of its effectiveness. (Anyone??)

Thanks so far.. Stu

 

[maxi77]

I was impressed with the Resoltech product which was bought through Tradboats.com. They don't seem to list it now. I wasn't the one paying for it - I just recall that it seemed to cost a fortune.

http://www.tradboats.com/marineglues.htm

 

[DownWest]

I have occasionally mentioned Resoltech Re1010 on here, as I found it works very well. Not bought any recently (1Yr) but the price quoted sounds steep. My whole boat was coated with the stuff ( as well as glued with their pre-filled epoxy). It goes on like milk, in the watered down phase, very easy, and the finish is much smoother than a full convential epoxy. Still, it is a bit sensitive to U-V, so a proper blocking varnish, or paint, is required.
DW

 

[stuhaynes]

http://www.tradboats.com/marineglues.htm

well spotted maxi77! I looked on tradboats but didn't look at glues. As I mentioned a couple of times, it seemed extremely expensive. I believe that I was told that the cost for the 30 foot boat I was painting was around £300. I've no idea whether the owner exaggerated or included something else in the price he told me. At the price on tradboats it seems much more reasonable.

At least now I have a couple of alternatives!

Thanks everyone.

 

[lw395]

£23 a litre for a water based epoxy seems quite expensive to me, compared to solvent free epoxy at similar prices. How much of what you are buying is water?
I'm also not convinced about sealing water into the wood.

 

[oldsaltoz]

£23 a litre for a water based epoxy seems quite expensive to me, compared to solvent free epoxy at similar prices. How much of what you are buying is water?
I'm also not convinced about sealing water into the wood.

I'm with you lw395,

I only use water based over exiting resins, the idea of adding anthing that contains water directly to timber gives me the willies.

Good luck and fair winds.