Maleny Paint Supplies

Preparation is the key to achieving the best possible results for whatever it is you are doing. The same goes for timber decking! Whether it’s a new or existing timber deck, a little prep work prior to coating will ensure that the job is done right!

What are tannins?

Hardwood decking has tannins that are natural properties of the timber itself and are stored within the grain of the timber.

When water or moisture spreads through the timber it will bring these tannins back to the surface causing dark, brownish stains. It is vital to clean timber decking before applying any coating to ensure the tannins are removed. Note that the only real way to effectively remove the tannins is to “weather” the timber for approximately 4-6 weeks prior to washing/cleaning the deck using Oxalic Acid Crystals.

How do I clean my deck??

Oxalic Acid Crystals are a concentrated, heavy-duty cleaner which is effective in removing light stains and blemishes from timber. Simply dissolve in 100ml to 1 litre of hot water and using a hard scrubbing brush, wash the timber decking. Leave for approximately 15 mins and rinse off thoroughly with a high pressure hose, making sure to remove all traces of the solution. Allow to completely dry.

For new timber, then apply 3 coats of a quality Universal Decking Oil with a roller or decking oil floor brush. or applicator. Quality decking oils are formulated to PRESERVE, PROTECT, & RESTORE. It is important to achieve optimum results by getting right into the gaps.

For existing and previously coated decking, follow the cleaning process mentioned above, although the timber may require some sanding prior to applying 1-2 coats of decking oil. It is important to apply light coats of oil as oil dries from the inside out. By applying too thick a coat means the oil doesn’t dry properly and remains “tacky when walking on it”.

Oil based decking oils have been around for a very long time. This is because they penetrate very well. the operative word being PENETRATE. They go deep into the timber keeping it hydrated and lubricated versus coated in layers on top providing excellent protection from the inside out.

Oil based decking oils also have far less chance of peeling, provide an even finish with less chance of lap marks and are so easy to use and require hardly any effort.

NOTE: If you have a solvent or water-based polyurethane coating your floor will require a full sand and complete clean before any re-coat.

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