Another year has come and gone and I'm still not completed my review on this Ardex 8+9. I have to say that I love the product but am a little confused over how it preforms. We have used it once again on our latest job in tandem with Schluter System Kerdi DS.
I tried a little cold weather testing and found it the Ardex was left overnight in the cold it would not set when used to seam Kerdi DS. So like the liquid membranes temperature is a factor.
I have also found that the mixing is critical and that the proper Ardex 8+9 paddle needs to be used. The paddle works like a bread maker almost and really pushes the mix to the sides of the bucket while spinning.
I tried making a small batch with the paddle in a smaller container and found it quite hard to do. A full size mixing container is best.
After 90 minutes of flood testing you can see a slight change in colour.
After 27 hours the lighter colour is the third coat I used before flood testing. This coat was mixed in a smaller container.
Looking at this picture you can see two separate colours. One darker and one lighter (under water).
The shower has not leaked at hour 27 and was holding perfectly. This colour change I think the result of a less than ideal mix or mix time.
In the new year I'm going to continue this review of Ardex 8+9 and I'm going to compare it to Schluter System's Kerdi Col. I would also like to find a proper smaller mixer so I can mix smaller batches.
I was told that Robert Russell from Ardex would be out to Vancouver and would call on me. This never happen last month. Lets see if he makes the trip in January. I'm still waiting for a demonstration from my local Vancouver Ardex rep Glen and hope that this gets arranged this month. Until such time I'll continue testing this product and using it on my projects. I love the fact it's been around for 20 years and it's proving to be very versatile in the field.