MDF Window Sil Gap

Postby bezzas7 » Mon Aug 09, 2010 3:52 pm

Hello All,

One of the interior window sil's is MDF (don't ask).

Problem is there is a slight gap between where the sil butts up against the uPVC window frame.

I have tried filling the gap with caulk and filler but it just shrinks and cracks.

could i use Ronseal High Performance Wood Filler to fill the gap between the sil and the uPVC window frame?

Google ""

will it stick to the frame?


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