Preschem FAQ









Preschem FAQ

Preschem has added a lot of new FAQ to this page. To keep them in a logical order, we’ve added categories and grouped them accordingly. To see the FAQ under each category, please click to expand or collapse the FAQ. Then click on the question to see the answer.

Exterior Timber Finishes

Yes, both Aussie Clear and Aussie Clear Light are tinted with “clear” tints. They serve three important functions:

  1. To assist with maintaining the colour of the timber as the oil fades, for a more even and natural look
  2. Restore the natural “as new” timber colour when the natural timber pigments bleed out
  3. Offer the best possible protection against UV weathering

Aussie Clear is tinted to be “transparent” on mid to dark toned timbers, whilst appearing a reddish-orange on light or “blond” timber.

Aussie Clear Light is tinted for light coloured or “blond” hardwood timbers to appear like “wet straw”. Aussie Clear Light can also be used on mid to dark toned hardwood timbers too.

Yes, Aussie Clear and Aussie Clear Light are suitable for all hardwood species and also for Cedar (which is a softwood).

Note that Aussie Clear and Aussie Clear Light have different coloured pigments, so on mid to dark toned hardwoods, either version of Aussie Clear will appear transparent. However, on blond or light coloured hardwoods, the pigment colour will be noticeable. Aussie Clear Light is the colour that most people will prefer on blond coloured timber as the finish will resemble “wet straw” in most instances.

Yes you can! Any of the Aussie Clear versions, or Walnut Timber Finish can be used to treated pine. Be aware that unlike the Exterior Pine Clear, these products all contain pigments, so the pigment colour will be noticeable. The pigment colours are:

  • Aussie Clear – a “transparent” pigment in redish orange
  • Aussie Clear Light – a “transparent” pigment in yellow
  • Aussie Finish Walnut – an “opague” pigment in walnut brown

Lastly, the performance of these products may vary a little from what is expected. This is due to the radiata pine being a relatively low density and porous timber.

Exteroir Pine Clear is not recommended for use on denser and less pourus hardwoods like Merbau or Spotted Gum. If you with to use a finish without a pigment we recommend that you use Radial Timber Sealer.

Do note though that without a pigment, the timber will go visably grey over time. The pigments act as UV agent, so it’s alittle big like sunscreen for timber. If you don’t want it to go grey, then use Aussie clear or Ausie Clear Light.

Weathered timber has turned grey due to the sun. Preshcem has done a news article that discusses why timber changes colour. But belive it or not, badly weather timber can look like new with a little bit of elbow grease with proper preperation, followed by a coat of Aussie Clear or Aussie Clear Light.

Preschem recommends that for heavy weathering, a light sand is the best option. There are some seriously good gadgets out there now such as the Terrassen Blitz, which makes light work of this and removes most of the weathering without having to recess screws or nails. The Blitz is availbable for rent from Woodcrete Pty Ltd in Mulgrave Victoria. If you don’t have access to this, then you could use a regular old sander.

Once you’ve sanded the deck, to make sure all the weathering has been dealt with, use Preschem’s Grey Deck Cleaner as the final stage. This will ensure that you get an excellent result once you’ve applied one of the Aussie Clear products.

This list is a complete and cost friendly starting point, on the bare bones equipment you’ll need to maintain your deck.

  • Grey Deck Cleaner to wash your deck
  • 15-20lt general purpose bucket for the Grey Deck Cleaner
  • Trigger hose or pressure cleaner (with car wash nozzle)
  • Unipro decking kit (this complete kit contains everything you’ll need to prepare and oil your deck, if you don’t have anything in your garage or shed)
  • Aussie Clear or Aussie Clear Light
  • Mineral Turps for cleanup
  • Clean dry rag
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