Exterior Timber

Frequently Asked Questions

Q. What is Timberguard Primer?

A. Timberguard Primer is the latest Nano technology water based penetrating primer designed to moisture proof the timber prior to the application of the Timberguard Finish Natural Tone & Natural Clear Polyurethane.

Q. What is Timberguard Finish?

A. Timberguard is a water based Hybrid Single Pack Polyurethane that is designed to be applied to exterior timber structures and interior timber structures.
Q. What spread rate can I expect?
A. With exterior timber decks you can expect to get about 12m² for the first coat and about 14 / 16m² for the second and subsequent coats. This will depend on the condition of the timber surface and applicator used. This is to be used as a guide only and these rates should not be exceeded.
For exterior walls the first coat will get about 14m² and the subsequent coats about 16m² This will depend on the condition of the timber surface and applicator used. Note rough sawn timber will use a lot more product and spread rates will be significantly lowered.
For interior structures the first coat will get about 14m² and the subsequent coats about 16/18m² This will depend on the timber surface and applicator used.
Q. What are the best applicators to use?
A. For exterior decks the best applicator is a lambs wool decking applicator and a brush for feathering off. If applying a slip resistant coating use a Mohair or Micro-fibre roller 12 nap thickness.
For exterior and Interior walls and other vertical structures the Timberguard can be sprayed using an 8 thou tip at low pressure, followed immediately rolling the coating using either Mohair or Micro-fibre roller or brushed.
Q. Do I need to prepare the surface prior to coating with Timberguard?
A. Yes it is essential that all structures new or old are cleaned prior to application of Timberguard. Where possible wash the timber surface with Timber Prep Oxalic Acid and wash down with a pressure cleaner. For all other dressed timber surfaces sand if possible and ensure all loose material or dust is removed. For rough sawn timber wash with the Timber Prep and clean with a garden hose or pressure cleaner at low pressure. Download: Ultra V Timberguard application instruction
Q. What is the best time to apply Timberguard to exterior surfaces?
A. During the warmer months it is best to apply Timberguard in the morning and during the latter part of the afternoon. It is not advisable to apply the coating during the hottest part of the day as the surface temperature can become hotter than the atmospheric temperature. The product is designed to be applied between 10°C and 30°C

Q. How many coats of Timberguard should be applied?
A. A minimum of 3 good coats of Timberguard should be applied and possibly 4 coats for extreme UV conditions or high foot traffic areas. As many coats as required can be applied. Do not apply the product thinly for each coat.
Q. Can I apply Timberguard to a wet or damp timber surface?
A. No the surface must be completely dry prior to coating and also in between coats. This also applies to early morning moisture that may be sitting on the surface in between coat. Wait for the moisture to completely evaporate prior to coating.
Q. Can I use Timberguard on internal floors?
A. Timberguard was not designed for internal floors as the product does not fully harden to allow for the natural expansion and contraction of timber. Most internal floor coating are 2 pack products using a hardener to create a tough finish.
Q. Can I Use the Timberguard Natural Clear on exterior timber surfaces?
A. No you should never use a clear coating on exterior timber that is exposed to the weather unless the timber has a pigmented stain or is impregnated with a pigment to protect the timber from UV.
Q. Can I apply Timberguard directly over a previously oiled deck?
A. You can apply Timberguard over previously oiled decks providing you take certain steps prior to application. You can leave the timber surface exposed for approx 12 months after the last coating to allow the majority of oil to burn off. Then wash the deck with Timber Prep scrubbing with a hard bristle deck broom and then pressure clean the surface. After the surface has thoroughly dried, check the surface by applying small amounts of water in various locations, see if the water droplets remain or soak into the timber. If the water remains beaded then the surface will need to be re washed repeating the same process and continue doing so until the water no longer beads.
Q. Can I apply Timberguard over a previously stained Deck?
A. Yes providing the stain coating is water based and in good condition. Wash the deck with Timber Prep as per instructions, allow the timber to completely dry, and apply Timberguard. In this case apply the Natural Clear so that the full colour of the stain can be seen. Apply 3 good coats as a minimum of the Timberguard Natural Clear.

Q. Can I recoat Timberguard without sanding?
A. Yes you can re coat Timberguard at any time. You do not have to sand prior to re coating unless the coating has been damaged. Wash the surface to remove any dirt, oil etc and allow the surface to dry prior to recoating.
Q. What is Timber Prep?
A. Timber Prep is an oxalic acid timber wash that will brighten grey timber, clean the surface, remove oil stains, destroying mould and mildew. Cleaning all exterior timber surfaces with Timber Prep mixed with water as per the label instructions will open the timber pores in preparation for coating.
Q. Can I coat directly over solvent based surface timber coatings?
A. No you cannot, the old solvent based coating must be completely removed by sanding and then the timber should be washed with Timber Prep if possible prior to coating with Timberguard.
Q. My timber has become grey weathered can I apply a coating?
A. Yes you can but remove the grey timber fibres by washing with Timber Prep that will brighten the timber and clean the surface. Or do a combination of sanding first if the surface has splintered and then washing the timber with Timber Prep.
Q. Can I coat Timberguard on treated pine?
A. Yes you can coat Timberguard on any treated pine that has been treated with a water based solution. LOSP solvent based treatment is the exception and that timber should be allowed to weather for 12 months to let all the solvent and waxes to dissipate. All treated pine timber should be washed with Timber Prep prior to coating.
Q. Does salt water, chlorine and house hold detergents affect Timberguard?
A. No these products will not affect Timberguard once the product has fully cured after 3/5 days. All normal household cleaning products, fruit juices, alcohol and food stains will not harm Timberguard.