Rake it out, if it’s blown then PVA to help hold the edges then Toupret flexible filler but not overfilled as it’s not easy to sand, then over fill with normal filler sand and paint.
Let the flexible filler cure for 24hrs.
Rake it out, if it’s blown then PVA to help hold the edges then Toupret flexible filler but not overfilled as it’s not easy to sand, then over fill with normal filler sand and paint.
Let the flexible filler cure for 24hrs.
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