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    Anker Stuy Coatings - 20 / Jan / 2023

    Early water-resistance benchmark test results

    Established in Peterborough in 2019, Anker Stuy Coatings is a relatively newcomer to the UK joinery industry. But with 125 years of experience in the Dutch coatings industry, we would like to show you how our products compare to our competitors in the UK*. With the emphasis being on water resistance after critical drying during winter time.

    Early water-resistance benchmark test results
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    To get a fair and reliable result from the water uptake tests, both Anker Stuy Coatings and the market reference products have been tested on redwood (softwood) and sapele/sapelli (hardwood).

    The tests were carried out with the settings and conditions listed below:

    • Application: Airmix spraying
    • Substrate:
      • Redwood sealed according to EN 927 5
      • Sapele coated on front and edges, no extra sealing
    • Drying time: 2,5 hrs at 15°C and 75% relative humidity (RH) after each coat
    • Measurement: weight increase (= water uptake) according to EN 927 5, after 24, 48, 72 and 144 hours at 12°C and 60% RH

     

    System 1

    System 2

    System 3

    System 4

    First coat (150µm wet)

    Hydrolux Baseprimer white / market reference (MR) primer

    Hydrolux Baseprimer white / market reference (MR) primer

    Hydrolux Topcoat SM RAL 7026 / Market reference (MR) low gloss topcoat RAL 7026

    Hydrolux Baseprimer white / market reference primer (MR)

    Second coat (175µm wet)

    Hydrolux Topcoat SM RAL 9010 / Market reference (MR) low gloss topcoat RAL 9010

    Hydrolux Topcoat Thix SM RAL 9010 /Market reference (MR) low gloss topcoat RAL 9010

    Hydrolux Topcoat SM RAL 7026 / Market reference (MR) low gloss topcoat RAL 7026

    Hydrolux Topcoat SM RAL 7026 / Market reference (MR) low gloss topcoat RAL 7026

    Third coat (175µm wet)

    Hydrolux Topcoat SM RAL 9010 / Market reference (MR) low gloss topcoat RAL 9010

    -

    -

    Hydrolux Topcoat SM RAL 7026 / Mrket reference (MR) low gloss topcoat RAL 7026

     

    Water uptake results for redwood

     

    Water uptake results for sapele in milligrams

    On both the chart and figures you can see that the Anker Stuy systems have less water uptake than the market reference on all systems. Sidenote: sapele panels are always higher in water uptake compared to redwood because end grains have not been sealed.

    Numbers don't lie, but how do the panels look after these tests? We took photos after each test, resulting in the overview below:

     

    Water resistance after 1 day

    (3 samples left are redwood, 2 samples at the right are sapele)

    Anker Stuy (AS): no blisters
    Market reference (MR): blisters in system 1, 2 (strong) and 4 ( very strong)

     

    Water resistance after 2 days

    (3 samples left are redwood, 2 samples at the right are sapele)

    Anker Stuy (AS): no blisters
    Market reference (MR): blisters in system 1, 2 (strong) and 4 ( very strong)

     

    Water resistance after 7 days

    (3 samples on the left are redwood, 2 on the right are sapele)

    AS: no blisters
    MR: blisters in system 1, 2 and 4 (very strong)

     

    Conclusions

      • Anker Stuy Coatings systems do not blister, even when the drying time is short (24 hours) and drying temperatures are low (12°C). Most of the market reference systems show severe blistering.
      • Blisters become smaller in size over time, but even after one week of drying at 12°C, blisters are still developing when exposed to water. The blisters largely disappear after drying but some wrinkles remains.
      • Water uptake with the Anker Stuy systems is much lower compared to the market reference, especially after 1 or 2 days of drying. Also the resistance to water is better and the uptake of moisture in the timber is lower when the coating is dried under non-ideal conditions. 
      • Using the Anker Stuy joinery coatings reduces the risk of moisture related complaints with wooden joinery on site.

    Would you like to know more about our Hydrolux products and/or are you interested in receiving some samples to test it yourself? Please get in touch with us!

    *Due to legal reasons we are not allowed to mention which competitors our products are tested against.

    How we test the durability of our wood coatings

    In our latest video we explain how we test and compare whether our coatings can withstand harsh weather conditions.

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