Crack Filling in Wood - structural repair with Epoxy Primer and Epoxy Mouldable Putty
How to fill Cracks and Holes - summary
1. Clean out the crack or hole with a saw blade, jigsaw or chisel to at least 10mm x 10mm in section.
2. Remove all dust by brush or vacuum.
3. Prime with Epoxy Primer using a brush and place Moldable Epoxy Putty or, for bigger holes on the top face, pour in Structural Epoxy Pouring Resin, which is self leveling.
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How to choose a crack repair method and material
Cut out the cracks with a saw, Router, masonry grinder, or Allsaw, to form square edged slots, and remove all dust and debris. Avoid V shaped slots. The repair will be much weaker.
Repair Thickness - the more material that we can put in to the repair, in terms of width and depth, the better it will be able to accommodate natural movements caused by changing temperatures and therefore the better it will last.
Caution - Always consult a Structural Engineer and the building's Insurers before proceeding.
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Fine to medium cracks - hairline to 15mm wide.
Clean out - to at least 10mm x 10mm
Apply Epoxy Primer liquid by brush and whilst tacky lay in the putty-like repair mortar, Moldable Epoxy Putty.
Epoxy Primer - available in 500cc and 1 litre, two pot, liquids.
Moldable Epoxy Putty - available in 500cc and 1 litre, two pot, putties.
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Larger holes and cracks - over 15mm wide
Cut out to - 20mm plus in width - you can fill holes of any size in a single pour.
Pour or inject Structural Epoxy Pouring Resin.
Structural Pouring Resin - available in 1 litre, 2.5 litre and 7.5 litre packs, containing two liquids and a powder.
Shutter Box and dug out timber. Pouring Structural Pouring Resin. Small Joist Repair.
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For cosmetic matching of colour or texture - you can add your own Site dust or chippings to the surface,(or ask for our Mortar Colour Powder), which you can mix into Moldable Epoxy Putty, used as a surfacing finish.
Apply Epoxy Primer liquid by brush and whilst tacky lay in the putty-like repair mortar, Moldable Epoxy Putty.
Epoxy Primer - available in 500cc and 1 litre, two pot, liquids.
Moldable Epoxy Putty - available in 500cc and 1 litre, two pot, putties..
Mixing Moldable Epoxy Putty in the gloved hand.
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Site written by: David Moore
David Moore, B.A. (Hons.), C.T.I.S., C.R.D.S. Technical Author
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www.propertyrepairsystems.co.uk - our Home Site
www.steel-fire-paint.co.uk - treat steel with Intumescent Paint to provide fire protection
www.timber.org.uk - systems of repair, with step by step methods
www.timber-repair.co.uk - how to repair timber beams