Frencham Cypress - designAclad -


Exposed timber that is left uncoated will absorb moisture during wet weather and give off moisture in the dry.
This results in swelling and shrinkage that causes small cracks or surface 'checks', or cupping. Good quality coatings and regular maintainance, will reduce these weathering effects.

As a naturally high durability timber, Australian Cypress can be left to weather naturally, however, it is strongly recommended that a quality coating be applied to increase the service life of cypress.

Experience has shown that the application of a 'timber pre-treatment' such as Quantum Quantec, can assist in reducing water staining allowing cypress to weather to an attractive silver-grey.
Experience has shown that sawn cypress provides a greater long term weathering ability, a better surface 'key' for coatings, and is less prone to surface checking than dressed cypress.

Due to the high quality of machining now possible, our dressed products can exhibit mill glaze. Mill glaze occurs when timber is dressed to a smooth finish, leaving the surface of the timber closed and thus non porous. This needs to be removed with a product such as Quantum 'Sap Strip'.
If the surface is not broken, penetration of the coating will not occur, causing premature adhesian failure of the coating.

It is recommended that cypress be end sealed immediately after docking, to reduce end splitting, with a Timber End Sealer called  "Logshield Clear"  or similar.
If cypress is to be coated,  then this coating can be used as an end sealer. This can be applied liberally and may require several coats.

Where cypress is to be finished with a surface coating, it is recommended that each cypress component be fully coated, (front, back and sides) including docked and end-matched ends, prior to installation. A second coat can be applied after installation.

Timber coatings can be broadly classified into the following:


  • Traditional under coat / top coat, full colour opaque paint finish (oil or acrylic)
  • Polyurethane (solvent or acrylic)
  • Solvent based penetrating oils and stains
  • Water borne penetrating oils and stains, low VOC (volitile organic compounds)

Note: Experience has shown that products containing Linseed Oil can discolour timber.
Being an organic oil, mould and fungi tend to feed on the oil and 'blacken' the surface.

For detailed information on a specific timber finish, refer to Manufacturer's recommendations for preparation and application.

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