It's best to use a flexible epoxy adhesive, such as TotalBoat FlexEpox, to bond white oak. This is because white oak is one of the more dimensionally unstable wood species, and changes in moisture levels can potentially put such enormous stress on a glue joint it can pull it apart.
FlexEpox has greater flexibility than TotalBoat Traditional Epoxy and TotalBoat High Performance Epoxy systems, and so is preferred for bonding or sealing white oak. FlexEpox also tolerates the higher concentration of tannic acid found in white oak, which can make achieving a good bond more difficult with other epoxy products.
To bond white oak with FlexEpox, do the following:
- Use 80-grit sandpaper (or coarser) to sand the surfaces that will be bonded together.
- Remove all sanding residue completely.
- To promote the strongest bond, use a clean cotton rag dampened with acetone to solvent wipe the surfaces to be bonded - do not use a synthetic rag.
- Allow the solvent to evaporate completely.
- Apply FlexEpox immediately after the solvent evaporates.
- When clamping, don't use too much pressure or you'll squeeze the epoxy out of the joint before it has a chance to cure.