TQC Sheen
TQC designs and produces field measuring instruments and lab equipment for testing paint and coatings and general surface treatment. Our objective is to create and offer solutions for every possible QC-application in surface technology.
- +31 (0) 10 - 7900 100
- +31 (0) 10 - 7900 129
- info@tqc.eu
- Molenbaan 19
Capelle aan den IJssel, 2908LL
Netherlands
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Climatic Conditions
Temperature, humidity and related climatic parameters are important to many industrial processes and the application of paint and coatings is no exception to that rule. Measuring and controlling of climatic parameters such as relative humidity, air-temperature, dewpoint and moisture is vital to a successful application of high-end coating systems. Incorrect climatic conditions during pre-treatment and application often lead to premature failing coatings systems....
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Density
The density of paint will depend on their ingredients in the paint. Density is also known as specific gravity or mass per unit volume.The more ingredients/particles in paint the more mass per unit of volume. This is called density (S.G) can be written as g/cm3. The reference substance for liquids is nearly always water. It is important to specify temperature for both the sample and reference. To find the density of a paint you need to establish the weight of the product. For these several instruments are available, pyknometers, immersion bodies, densimeters and weighing scales.
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Film Thickness
A correct paint- or coating thickness is an important parameter in the surface treatment industry. The performance of a coating system is based upon correct application of this system following the paint manufacturers specification sheet. Each layer from primer to topcoat and individual intermediate layers are exactly specified with a minimum and maximum coating thickness. Often both a dry and wet film thickness is specified.
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Film application
Film application in coating industry includes a broad range of different devices and instruments which are an absolute necessity for testing or evaluation. Only in this way the quality-related properties required can be tested, compared, documented and communicated in compliance with the requirements. Film application covers a range of instruments that can be divided in four groups: Applicators, Application tables, Application machines, Test charts.
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Deformation Resistance
Physical properties of paint and coatings play an important role in the quality control. Depending on the application a coating is supposed to be extremely hard and rigid such as for example the coating on the hull of an ice-breaker. Automotive coatings however require a certain flexibility since the thin sheet metal of a car body is not fully rigid ...
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Hardness / Scratch Resistance
The property of a substance that is resistant to repeated rubbing or scratching. In general, it meant the resistance of a (coating) layer or surface against mechanical friction. Abrasion of products is a concept that can''t be handled in general. One must explicitly specify the conditions under which the product must be durable.
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Corrosion / Weathering
Corrosion and weathering are both major contributors to overall costs. Globally around 5 tonnes of steel are lost every second due to corrosion. Causing huge global costs and a significant influence on environmental conditions. Around 30% of this staggering 17.5 billion price tag can be prevented by basic corrosion testing. Not only the impact of corrosion on the environment is essential also it's influence on insurance costs and installation off time's.
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Appearance Assessment
Appearance is the common situation where surface influences meet visual differences in perception of gloss and color. The impact of different gloss levels does have a great influence on a product as well on its color. The surface quality of a coated surface is often assessed by measuring gloss. Poorly applied coatings or cured paints will show a variety of gloss levels.... Different focuses, Visual Perception; Colorboxes, Colorshapes, Colorcatch, Glossmeter.
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Dispersion
Dispersions are often used in latex wall paints, which can thus be diluted with water. The homogenity of a dispersion depends on size and weight of particles. To determine the size of particles the use of a Fineness of Grind gauge or grindometer is needed. For proper mixing and / or stirring a variety of laboratory and industrial tools are available depending on volume or capacity.
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Adhesion testing
Adhesion is the tendency of dissimilar particles and/or surfaces to cling to one another. The adhesive strength of paint and coatings are of crucial importance to enable the material to meet the basic functions of protection and decoration. Cross-Cut or Cross Hatch Test, Scrape Adhesion, Pull-Off Test.
