Re: flaking sundial

2002-11-25 Thread Dave Bell
On Mon, 25 Nov 2002 [EMAIL PROTECTED] wrote: > Object - a vertial south sundial of 1700, in a sandstone type of material. > It is 24 inches square. with carved numerials and hour lines. > > Went tapped, an area about 12 inches diameter sounds hollow where a thin > surface area is detached from

RE: flaking sundial

2002-11-25 Thread david scott
There is a product named West Systems epoxy (that was developed for laminating wood for large hi tech wind mill blades) that is extremely viscous. I have also heard of carpenters using an ordinary vacuum cleaner and a plastic bag for laminating jobs. It would important to draw off any air pockets

Re: flaking sundial

2002-11-25 Thread John Carmichael
Hi David: I agree with Tony that injection through a hole could cause a hydraulic effect that could actually widen the gap. Also, these glues and silicones are so viscous that they probably wouldn't fill the entire gap. Bonding agents work best when thin coats are applied to both surfaces and w

Re: flaking sundial

2002-11-25 Thread Tony Moss
Pavid Pawley asked: > >Object - a vertial south sundial of 1700, in a sandstone type of material. >It is 24 inches square. with carved numerials and hour lines. > >Went tapped, an area about 12 inches diameter sounds hollow where a thin >surface area is detached from the backing of the 1.5 inch

Re: flaking sundial

2002-11-25 Thread J.Tallman
ECTED]> To: Sent: Monday, November 25, 2002 9:14 AM Subject: Re: flaking sundial > Hi David: > > I agree with Tony that injection through a hole could cause a hydraulic > effect that could actually widen the gap. Also, these glues and silicones > are so viscous that they probably wo

Re: flaking sundial

2002-11-25 Thread John Hall
I have been following this thread with some mounting concern with the approach of trying to do an 'invisible' repair. All the adhesive approaches would have some problems due to the various incompatibilities already discussed. Have you considered making a visible repair by pinning the two

Re: flaking sundial

2002-11-25 Thread Tony Moss
Hi all, In my previous message I suggested: > Also you may have to drill two holes, the second one to let the air > escape.This would also confirm when the space is full if the inlet hole >is near the bottom of the cavity and the outlet is higher. You may be amused to learn where this ex