Thank you for the DuraGlas recommendation. Did you use Fiberglass backing when repairing
the window sill? Was there any shrinkage / reduction in volume after the material was
fully cured? What did you topcoat with - primer and paint or the materials recommended in
the data sheet?

Thanks again!


DerbyDad03 wrote:

On Monday, February 13, 2017 at 8:31:39 PM UTC-5, Doug wrote:
Need to fill a split in an exterior board - what brand(s) of wood filler perform well in
this application after priming and painting?

Thanks.

Doug

DuraGlas

Typically available anywhere Bondo is sold.

I used it to repair a rotted window sill. It's going on ten years which includes 10 rust belt winters.
Still holding strong.

http://uschem.com/index.cfm?page=productDetail&id=52

http://www.uschem.com/products/docs/TDS_Duraglas1.pdf