About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out material, long-term or laboratory tests. Our aim is to provide honest feedback to help you make a purchasing decision. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product reviews, please click here.

KISTEK
Sealant processing set

As part of our product test, we took a closer look at the sealant processing set from KISTEK . The set contains a range of tools that have been specially developed for sealing projects, including stainless steel joint scrapers, special scrapers with sharp blades and seven joint smoothers in different sizes for efficient work.

The tools are characterized by a robust design and have been tested for handling and performance. The ergonomically shaped and rubberized handle of the joint scraper ensures comfortable and safe handling. The special scraper is equipped with a blade guard to ensure safe storage.

All components of the set have been tested for safety and harmful substances by an independent testing institute in order to meet the highest quality standards. The tools were developed in close cooperation with craftsmen to ensure reliable use in the various sealing jobs.

Detailed instructions in PDF format support the user in the selection and application of the various sealants. In addition, KISTEK offers a 30-day money-back guarantee on the product.

Advantages

✅ Comprehensive set
✅ Safe handling
✅ Versatile application
✅ Free guidebook

Disadvantages

❌ Very many plastic parts

The test

General information

We took a close look at and tested the product in a practical test. In the following, we take a closer look at the features and impressions. From the packaging, materials and quality to the range of functions and handling, the product is subjected to our test procedure.
To give you a quick overview, we work with a points system. The maximum achievable score per area is 100 points. The final overall score is calculated from the average of all tested features, taking into account the respective weighting. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product ratings, please click here.

The first impression

Packaging and contents

ℹ️ Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

CriterionRemarkScore achieved*
Product protectionCarton is sturdy, product sufficiently protected100 points
Sustainability PackagingCompact product packaging, use of plastic film can be avoided 80 points
Package contents & scope1 special joint knife, 1 special scraper, 1 plastic spatula, 1 special cleaning rubber, 7 joint smoothers, 2 sealing caps, various spare parts and a guidebook100 points
Instructions for useWritten in German, easy to understand100 points
Total 95 points
Weighting: 20%
*The maximum score is 100 points

The packaging of the set leaves a positive first impression. Sustainability is particularly noteworthy, as only recyclable and renewable materials such as paper and cardboard were used for the shipping box. The compact design not only helps to minimize waste, but also avoids unnecessary packaging material. The only thing that could be dispensed with is the use of plastic film. Although it protects the product, the use of recyclable material would be desirable.
The scope of delivery includes the special joint knife, the special scraper, the plastic spatula, the special cleaning rubber, seven joint smoothers, 2 sealing caps, various spare parts and the free guide. The completeness and perfect condition of the contents meet expectations.

The first time in your hand

Product processing and appearance

ℹ️ Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

CriterionRemarkScore achieved*
Visual appearanceSimple, appealing design100 points
ProcessingGood workmanship100 points
StabilityVery stable100 points
Sustainability of the productHigh-quality materials and 30-day money-back guarantee 90 points
Total 98 points
Weighting: 20%
*The maximum score is 100 points
The set makes a good impression at first glance

At first glance, the sealant processing set makes a good impression. On closer inspection, no defects or processing faults can be seen – each tool is perfectly finished and ensures safe handling and protection of the working materials. The sturdy design and ergonomic, rubberized handle fit comfortably in the hand and enable safe and clean working.
The set is characterized by a simple and functional design, protective caps and replacement blades extend the service life of the tools.
Special emphasis is placed on quality and precision when selecting materials and manufacturing. To ensure customer satisfaction, a 30-day money-back guarantee is offered. However, an alternative to the plastic handles and spatulas would be desirable.

This is what our practical test showed

Does the manufacturer keep its advertising promises?

ℹ️ Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

CriterionRemarkScore achieved*
QualityVery good quality 90 points
FunctionalityVery efficient100 points
ErgonomicsPleasant handling100 points
DesignSimple, sophisticated design 90 points
VersatilityVery versatile100 points
Total 96 points
Weighting: 45%
*The maximum score is 100 points

We tested the KISTEK silicone remover set under various aspects in order to assess its overall performance.
The tools are characterized by very good quality and precise workmanship. Each tool, whether joint scraper, scraper or joint smoother, is robustly constructed and perfectly finished, which means that a long service life can be expected.
In terms of functionality and application, the set proved to be extremely versatile. The ergonomically shaped handles allow for comfortable handling, while the sharp blades and precise construction ensure professional results.
The simple design of the set and the practical handling contribute to user-friendliness. The tools are clearly arranged and easy to handle, making them easy to use for both professionals and DIY enthusias ts.
The handling and ergonomics of the set are particularly impressive. The tools sit comfortably in the hand and enable precise work, which is a particular advantage when working for long periods of time. The ergonomic design contributes significantly to the positive user experience and makes the set an indispensable tool for sealing projects.

Price/performance ratio

and ratings from consumers

ℹ️ Finally, we examine how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also look at the consumer reviews and check whether the critical and positive reviews are actually justified.

CriterionRemarkScore achieved*
Price / performance ratioVery good performance in the mid-price segment80 points
Rating cut4.5 out of 5.0 on Amazon75 points
Total78 points
Weighting: 15%
*The maximum score is 100 points

On the Amazon platform, consumers rate the product with an average of 4.5 stars. The quality of the knife is rarely criticized. Many customers like the stability and scope of the set. In our practical test, the extensive set impressed us with its quality and ease of use.

Prices of up to €47.20 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €8.99. The sealant processing set from KISTEK is therefore currently in the middle price segment with a price of €25.99. The price-performance ratio isreasonable for the quality and performance received.

Overall result

WeightingScore achieved*
1. packaging & contents20% 95 points
2. product processing & appearance20% 98 points
3. in the practical test45% 96 points
4. price/performance & consumer ratings15% 78 points
Total 94 points
*The maximum score is 100 points

The sealant processing set from the KISTEK brand was awarded an overall score of 1.3 and therefore successfully qualified for our test seal. The test was carried out in the test period 03/24 and is stored in our database under the license number 240216003. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

Test result:

1,3

Sealant processing set
of the brand
KISTEK
achieved
94
Points in our test and therefore passed. The test was carried out in the test period
03/24
and is stored in our database under the licence number
240216003
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observation and do not include long-term or laboratory tests. The test ratings reflect the opinion of our experts and are based on careful analysis. We would like to emphasize that these evaluations do not claim to be exhaustive and reflect both subjective and objective impressions. The assessments are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a reputable and thorough testing process, which has been developed in a long and professional process in close cooperation with our experts.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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