Dam Resin

[Gary Morris]

Hi,
I'd like to make a 'dam' to encircle a crack in a turned piece of wood, so that I can pour polyester resin into it. I was thinking of using plasticine, but wanted to know if anyone had any experience with it, or has any other method or material to use.

thanks
Gary

 

[Russ59]

Plasticine will be fine with resin.
I used plasticine in my fibreglass business most days making radius curves in my moulds.

 

[jpt]

I use plasticine all the time for exactly this job and it works beautifully.

You need to need it well to get it nice and soft so it sticks properly.

john

 

[Gary Morris]

Thanks Russ, thanks John,
I can go ahead now, I'm using some gold coloured 'jewels' I got from CFS, along with the resin and catalyst, fingers crossed!

Gary

 

[mtr1]

Make sure also that the crack doesn't go all the way through, I usually use masking tape on the underside of every crack even if I can't see one. Polyester resin doesn't stick to timber very well, it will shrink back and you will be left with a crack again. Epoxy resin will adhere very well.

 

[Gary Morris]

Cheers Mark, I'll do the same as some of the cracks seem quite deep.

Gary