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Yes Daniel but it was many years ago.
From memory, one of the important things which stuck in my mind of the product is that the first coat had to be thinly applied to allow it to form a key between the render and the subsequest coats.
If the key coat was applied too thick, it's possible that the material won't adhere to the surface and may flake away.
Brilliant - thanks Phil!
Hi Daniel
I feel I can answer this with some confidence as I spent 10 years in the Koi Pond Building industry, as well as importing Japanese Koi direct from the breeders. We used to use G4 in the past, and it has many advantages - such as being suitable for application to damp concrete / rendered surfaces. HOWEVER do not skimp on the coats! I would specify at least 5 coats of clear before two coats of pigmented. Others may say otherwise but I would always specify this. Given this, it can work out expensive to install correctly.
I would seriously recommend looking at getting a quote from a local pond fibreglassing company as this can usually work out cheaper / on par - typically £25 per sq m based on 2 x 450gr mat and one of tissue (although since oil has increased in price I know resin will have too). Fibreglass forms a layer around 3mm thick and although the structure needs to be sound at least glass will afford you some extra safety if the substructure cracks - and can be easily repaired in the future if it gets a crack. G4 on the other hand can be a pain given that its at best 1mm thick and has no strength and relies entirely on a solid sub structure.
Fibreglass also allows for easy installation of bottom drains, skimmers, return pipes and flow backs from waterfalls etc.
To add some interest - here is a 36,000 gallon koi pond we built around 6 years ago, lined with fibreglass
WOW that's awesome!
The pond is purely for wildlife, not for any fancy fish and the client was looking for a boxed L shape (if you follow) I don't think she'll want to go to the cost of fibreglassing - but then I don't think she'll want to put on 5 coats of G4 either :) Perhaps I can find a custom liner pre made to shape.
James, do you have any idea where I would track down a local fibreglassing company? I'm Berkshire based
google A4 koi they are in woodley or lower earley, they will know of a good fibreglasser in your area
Daniel Gillings @ DC Landscapes said:
ok Dan - if its a L shape you can get a box welded butyl liner for that which will drop straight in with an overlap attached for any big garden areas etc. The people you want for that are Gordon Low - http://www.gordonlowproducts.co.uk/ here more specifically http://www.gordonlowproducts.co.uk/boxweldedliners.html
James
Dan yes - to echo Phil - A4koi - a good friend of mine Darren - Office number 0118-9272200 http://a4koi.com/
He should be able to sort you out
Yes - our reflecting pool (concrete block rendered) leaked so attempted reseal with G4. Much grief. No joy.