P9 Repair of surface defects

P9.1 Perform the preparatory work depending on the type of damage:

• Natural cracks and minor defects (<5mm) in new and unfinished wood
  No specific preparatory work required.

• Nail and screw holes
  When applying to nail and/or screw holes, ensure the surrounding wood structure is not damaged. Preferably countersink the screw holes.
• Post-treatment of epoxy repair
  After the DRY FLEX® or BIO FLEX™ has cured, remove the surface layer (amine) by sanding. If there is an air pocket, use a router to remove the amine from the air pocket.
• Surface damage to a painted wooden substrate
  Thoroughly clean and degrease before sanding. Remove any defective paint layers (peeling, detachment, blistering, etc.) in the area of the surface damage. Use an orbital or random orbital sander and sand until the defective paint layer is removed, or until bare wood is exposed. New paint layers should be lightly sanded before application.
  Remove all damaged wood fibres, if present, until reaching the healthy wood structure below. Regularly check to ensure all damaged wood is properly removed.
  Note: the cutout should not be deeper than 5-6mm. For deeper damage, follow procedure C1 (with the corresponding products).

P9.2 Measure the wood moisture content of the joint with the EASY-Q™ wood conditioner CS1. If the moisture content of the wood is too high (≤ 18%), allow it to dry naturally in the open air.

P9.3 Remove loose exposed wood fibres from the routed surface by sanding. Carefully remove any wood debris and dirt.

P9.4 Apply DRY FLEX^® SF firmly. Apply the first layer in such a way as to obtain optimal contact. Immediately afterwards, apply the finishing coat with a flat-lying EASY●Q™ stainless steel modelling knife so that the DRY FLEX^® SF is modelled proud over the surface.

P9.5 After curing DRY FLEX^® SF, sand it mechanically smooth and even. Interfering transitions and irregularities between wood and the DRY FLEX^® SF must not be visible afterwards. Carefully remove the sanding dust.

P9.6 Treat according to painting advice. Always use a primer as a base. When time is important factor a quick drying primer can be used.

The number behind the type DRY FLEX^® refers to the curing time. It should be noted that the curing time of the products depends on the applied layer thickness and the temperature of the surrounding environment.