StainDex - Deck and Outdoor Stain


(14 reviews) Write a Review
$77.90 - $2,936.56
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Product Overview


StainDex™ is a New Zealand manufactured co-polymer timber stain and preserver product.

Because of its rot-resisting and disinfecting effect, StainDex™ is ideally suited for the preservation and staining of wooden structures such as Decks, Outdoor Furniture and Post and Rail fences etc.

StainDex™ the outdoor wood stain everyone loves.

Timber requires one coat only and One (1) Litre will cover approximately 3 to 5 Square Meters depending on the substrate.

  • 4ltr will cover approximately 12 to 20 Square Meters
  • 10ltr will cover approximately 30 to 50 Square Meters
  • 20ltr will cover approximately 60 to 100 Square Meters

StainDex™ is intended primarily for surface application by brush,roller, paint pad (sheepskin sock) or airless spraying.

A re-coat will be required after 5 to 8 years.

Please see the Colour Chart image/photo below for the colours in our range. We are in the process of adding more colours to our range. (Please ask via "eMail" if you would like us to match a specific colour for you, and we will advise)

Please note you can now select your prefered product packaging.



  • StainDex™ will retard distortion, movement and splitting of timber, due to weather exposure
  • StainDex™ is non-corrosive to metals
  • Can be used on other wood structures
  • Will penetrate the timber rapidly
  • For best results apply to dry timber

    StainDex™ is idealy suited for:
    - Decks and hand rails
    - Outdoor Furniture: As it will not rub - off on clothing.
    - Fences and retaining walls



For more detailed information please see our documents below.

Packaging: Available in 4, 10, 20 and 200 Litre containers. Plastic jerry can, Metal flasks with bericap, Plastic open top paint bucket, Metal open top paint pail and Metal drum with bungs.

StainDex™ is an oily water emulsion, water-soluble, non-flammable, pigmented mixture from bitumen, polymers, water and petroleum components.
StainDex™ is a New Zealand manufactured, bituminous emulsion / polymer product which will penetrate the timber rapidly due to its viscosity.
StainDex™ gives a high degree of water repellence and will retard distortion, movement and splitting of timber, due to weather exposure.
StainDex™ preserver is non-flammable and the treated wood, after drying, presents no greater fire hazard than ordinary timber.
StainDex™ is non-corrosive to metals and can have a protective action on iron and steel.



These documents contain important information about:

  • Material Safety Data
  • General Information
  • Application
  • Storage
  • Safe use
  • First Aid
  • Clean Up
  • Warranty
  • Available Packing Sizes
  • and more information

Note: To view the following PDF documents, you will require some type of PDF-reader plugin on your system.
If you need an up-to-date plugin you can install Adobe's free PDF reader from here.


Material Safety Data Sheet (MSDS)

StainDex Product Data Sheet



(14 reviews) Write a Review

14 Reviews Hide Reviews Show Reviews

  • 5
    StainDex - For external Cladding

    Posted by Matt Shanks on 21st May 2024

    Great product, first used this several years ago to coat second story cedar cladding. Absorbs well, easy to apply, lasts well. Only did one coat each time and covers well, although would reccomend 2 for longer lasting effects. I initially incorrectly ordered the wrong colour, Pierre was happy to exchange for the right colour and didn't charge me additional shipping - stoked.

  • 4
    The product certainly did the job.

    Posted by Andrew Barclay on 5th May 2024

    I made the mistake of using a wool pad to apply the stain on a grooved deck,very wasteful, I used a brush to apply the second 10 lts did a far better job although I did find the product very runny.

  • 5

    Posted by Alexis on 23rd Apr 2024

    A great product. We used it for the facsias on our house and they look great. Really nice colour selection, very easy to apply. Also appreciated the fast and seemless service.

  • 5
    Staindex deck and outdoor wood preserver

    Posted by Mark on 26th Mar 2024

    Great service from Biosymph and excellent product, will order again. Thanks!

  • 5

    Posted by Chris on 11th Mar 2024

    A great product. Bought the "Bone White" to apply to an older deck. After cleaning and applying the Staindex, the deck timber looks like new. Used a high volume/ low pressure sprayer. I advise buying the bucket size containers to enable you to scrape the tint sediment at the bottom.

  • 5

    Posted by Pat. Oleary on 18th Dec 2023

    Order arrived promptly and on good condition. Made a fantastic job of the deck and I also used it on the facings of my garden shed. Easy to use .

  • 5

    Posted by Joseph (Joe) Calkin on 15th Mar 2023

    Product did exactly what it said on the tin, we were a little worried about it being oil based but it is not hard to work with at all, we had the colour mixed to our request. Looks Great.

  • 5
    StainDex - Deck and Outdoor Stain

    Posted by Jing Sun on 20th Jan 2023

    The product is very good with the first class customer services.

  • 5
    Natural deck and timber oil

    Posted by Gary Williams on 26th Jun 2022

    At least as good as wattyl ect. Cant see any difference where both products used on same deck area. Hugely competive price.