Cowie
Member
Could anyone recommend a epoxy filler which still retains some flexibility.
(Other than sikaflex)
Job in hand is fairing a keel
(Other than sikaflex)
Job in hand is fairing a keel
Mix your own, Talc is the thickening agent.
Yep never heard of using that before but will give it a go ?Mix your own, Talc is the thickening agent.
Thank you for the input I'll give the International a spinBear in mind that epoxy such as West will set quickly so doing a large area could be an issue. A slow epoxy is probably available. We have been using the Internaitional product which we bought cheaply, it's years old but keeps working and has a long set time.
There is colloidal silica and glass microballoons as well as Talc. The International keel filler is definitely Talc based.
Jelly?? That's flexible.....Can also use custard powder...
I can see me writing a cook bookJelly?? That's flexible.....
Seriously though, I've always used Hempel for underwater filling.Jelly?? That's flexible.....
Seems to be the weapon of choiceSeriously though, I've always used Hempel for underwater filling.
Epoxy filler for fairing a keel is almost certainly going to crack unless you have the worlds stiffest keel hull joint.
Unless you're repairing an encapsulated keel or something like that.
Hi Ceirwang
Fairing in a Dehler 36 keel to hull it has always been done with Sikaflex but the finish has never been achieved even when wet and dry sanding, using all recommend grades. As to the amount of movement this is up for debate.
It's fairing we're talking about. Fairing a keel is basically a similar process to using car body filler on a car. Talc is the thickener. The filler can be finished to a very high standard. It doesn't sang if correctly blended.
The keel Hull joint is a different animal and a different material is needed.
It matters not if the Talc is permeable or not as it will be applied to a primed keel and will be overcoated. As the Talc is embedded in epoxy I don't believe there will be much, if any, permeability.
Thank you for heads up, will call, them this particular area has always niggled me.Call CFS Fibreglass Supplies on 01209 821028 and tell them what you want. They have a big range of fillers. There's a chap there is a wiz on mixing them to get the result you want.
I wanted an easy to sand fairing for my keel. He gave be 3/4 miro-balloons + 1/4 colloidal silica to prevent sag.