Frequently Asked Questions

Q's

A's

Preschem's timber preservative products will kill, prevent and control rot within reason, but will not restore decay weakened timber. Badly decayed structural timber must be replaced by a registered professional tradesman.

Yes. For best results allow the preservative to dry for as long as possible, preferably 1-2 weeks or longer if possible. Use a quality oil based primer then your choice of quality exterior oil or acrylic top coat.

This is subject the the environment the timber is in and how much persistent moisture is present, but for most normal situations:

  • Timber Preserver, 4-5 years
  • No-Rot, 4-6 years
  • No-Rot Gel, 4-5 years (note that exposed exterior timber must be sealed with a quality exterior paint, otherwise the expected life will be 6-8 months)

Remove the source of moisture. Moisture will degrade timber and the Preschem preservative system applied over time. If the source of moisture is removed, then Preschem products will remain in the timber almost indefinitely waiting to protect the timber when moisture becomes an issue again. Sealing the timber with a quality paint is the simplest and most effective means of controlling moisture in timber when its above ground.

No-Rot and No-Rot Gel have a very limited ability to control termites, while Timber Preserver has no ability to do so. If you find termites in your home, then the only safe course of action is to contact a registered pest controller who specialises in termite infestation. They will be able to asses the damage done and a course of action to eradicate the termite nest.

Yes, Aussie Clear is suitable for all hardwood species

Yes, but Aussie Clear is formulated for hardwoods, so may not last as long on treated pine.

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.