'PCI Pericol Flex', presice and very easy to use

1-Packaging and mixing.

 
In this first step, we can see clear agreement in our fitters’ appreciation of the information shown on the bag which they considered plentiful and clear and which received a final score of ‘very useful’. Risk and safety warnings can also be seen. In addition, there are also high-quality icons or pictures which provide a lot of information in a precise and immediate manner. To our understanding, they don’t stand out very well from the rest of the image and the colour of the sack. A shame because we believe that they will be under-used in many cases since they can be easily mistaken for extra decoration unless the packaging is studied more carefully or its use is known in advance. »All information provided is precise and unambiguous with two exceptions. On one hand, there is confusion between the time in the open and the useful lifetime in the first warning or note, perhaps due to translation errors from the original language. On the other hand, and more importantly to our understanding, the allowable range of deviation for water in the mixture is vague (“approx. 7.5 litres”). It is very common in the sector but is quite shocking on a package which contains so much careful information. »The bag itself is well-appreciated and easily-manipulated. The opening is easy in one case and difficult in another, perhaps due to expecting a weaker bag while actually being of very high quality and resistance, making it difficult to open by hand and advising the use of a tool for the sake of speed and comfort. »A large amount of dust is released upon opening the bag, like most of the adhesives tested, but without any noticeable problems for the users. Little mixing effort and good consistency of the mixture achieved in little time.

2-Aplication,workability and humidity test.

In the combing, workability and moisture tests, it should be mentioned that the combing is really easy, even in the tests run in which the fitter, due to preference, used a lower quantity of water than that indicated by the manufacturer. On the other hand, with the amount of water marked on the package, one significant comment was: “great to use”. It covers the piece even when very porous. The furrow stayed exactly straight without any breakages. “Perfect”, noted another fitter. No trace of loosening in the adhesive when applied vertically. The ratings were consistently positive, indicating great effectiveness and ease of use in all cases.

3-Open time adjustments.

The time in the open is within the generally observed limits: we were able to correctly fit a porous piece up to 5 minutes after the combing had been completed. After 10 minutes, the chances of safely fitting the piece start to become excessive (although for simple fitting without any problems it could be considered a maximum limit in our work conditions). This result was obtained in air which was generally almost absolutely calm without any reductions in quality due to any fairly strong, sporadic, though very short, winds (1-3 seconds of wind of up to 0.9±0.2 m/s, approximately every 1.5-2 minutes), with ambient temperature of 24-25°C and a relative humidity of around 65%. Adjustment of the porous piece in the conditions mentioned could be carried out without any difficulties until 2.5 minutes and then with more difficulty until 5 minutes, after which it is better not to try to move it so as not to seriously affect the final result. These latest results seem really short to us, taking into account the good results obtained in other sections and that the test conditions were not the most extreme.

4-Vertical slip test.

In our work conditions (with the described piece and environmental conditions mentioned in the previous point), the adhesive showed a slight tendency to slide, being found in the intermediate group.

5-Lifetime or duration mixture.

The mixture remained in optimal conditions for over 4 and a half hours with temperatures in the range of 23-27°C and an environmental humidity of 60-70%.

Conclusions:

A high-quality, balanced, easy product which is comfortable to use and which provides effective fitting of pieces, both on the ground and walls with any technique we’d like to use. The very limited adjustment time surprised us but the adhesi- ve fully deserves its price. In any event, it is clear – even when testing this product – that attention must be given to time in the open, especially when 
 
 
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