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D25 1571 Paint Coatings Blistering from Humidity|PSA PEUGEOT – CITROËN

The D25 1571 standard operationalizes the testing procedure to measure the resilience of paint coatings against the blistering effect caused by humidity. The meticulous process facilitated by a condensation test chamber is not just about exposing the paint coatings to humidity but creating a controlled environment where the temperature and humidity levels are precisely managed. This is where a thermostatically controlled device becomes crucial. By maintaining specific temperature ranges within the chamber, It ensures that the condensation and, consequently, The evaporation processes mimic real-world conditions as closely as possible.

The intersection of standards like D25 1571 with advanced testing equipment such as the condensation test chamber exemplifies the critical importance of understanding and mitigating the effects of humidity on paint coatings. It’s not just about adhering to industry standards but setting a benchmark for quality that resonates with durability and reliability. For manufacturers under the PSA PEUGEOT – CITROËN specifications, and indeed across sectors, the message is clear – the resilience of paint coatings against humidity isn’t just about aesthetic preservation; It’s a comprehensive approach towards ensuring product integrity and longevity.

By harnessing the capabilities of technologically advanced condensation test chambers and aligning with rigorous standards like D25 1571, Manufacturers are making a clear statement. They are committed to delivering products that not only meet but exceed expectations, Ensuring that every aspect, Including how a product withstands humidity, is thoroughly examined and perfected. This adherence to quality and resilience is what ultimately defines industry leaders, Setting them apart in the competitive landscape of automotive, aeronautic, and broader manufacturing industries.

D27 1571 PSA PEUGEOT CITROEN paint coatings blistering from humidity test system
Control System PLC with Touch Screen
Internal Chamber Size W600*D500*H300mm
Temperature Resolution ± 0.1°C
Sample Window Size 80*160mm (Customizable)
Water Level Height 100mm
Sample Rack Angles 15° and 60° (Switchable)
Test Temperature Range Room Temperature ~ +70°C
Test Room Material Imported PVC Board
External Chamber Imported PVC Board
Automatic Water Refill Yes
Power Supply AC220V, 50Hz, 60Hz

In the realm of automotive and aeronautics industries, The durability and resilience of paint coatings are paramount. The developmental phase of any vehicular or aerospace component isn’t merely about achieving aesthetic excellence but also about ensuring long-term durability against various environmental factors. One such critical factor is humidity, Which can significantly impact paint coatings, Leading to undesirable outcomes such as blistering.

This is where standards like D25 1571 come into play, Specifically focusing on the impact of humidity on paint coatings. In this article, We delve deep into how the D25 1571 standard, Particularly in the context of PSA PEUGEOT – CITROËN, Articulates the need for rigorous testing environments provided by condensation test chambers. Additionally, We unpack the essence of using thermostatically controlled devices in such testing procedures and the broader implications of humidity on surface preparation and coating application.

D27 1571 PSA PEUGEOT CITROEN thermostatically controlled device
PSA PEUGEOT – CITROËN specifications incorporate D25 1571 standards within the automotive industry’s quality norms. This ensures vehicles are both aesthetically pleasing and durable against varying humidity levels, emphasizing paint coatings that are both attractive and enduring. The Role of PSA PEUGEOT – CITROËN
Humidity affects surface preparation and coating application significantly. High humidity can cause moisture entrapment under paint coats, leading to blistering or peeling. It can also hinder the curing process of paint, affecting the bond between paint and surface, or prolonging drying times. Analyzing the Effect of Humidity on Surface Preparation and Coating Application
Condensation test chambers from Wewon Environmental Chambers Co., Ltd. allow for the simulation of environmental conditions with precision. Essential for various industries, these chambers help test material durability under high humidity and temperature, supporting the automotive industry’s adherence to PSA PEUGEOT – CITROËN standards and enhancing product reliability and customer satisfaction. The Condensation Test Chamber – Simulating Real-World Conditions
The object of this method is to determine the resistance of a paint film to the phenomenon of blistering fromhumidity. 1.OBJECT AND FIELD OF APPLICATION
To determine the density of blistering after a determined period of exposure to condensing humidity, as well as the residual adherence of the coating according to methode d’essai D25 1075. 2.PRINCIPLE of D27 1571
With cover forming an angle of 15°in relation to the horizontal plane and equipped with a thermostatically controlled device, see appendix 1. 3.1.TANK IN RIGID POLYVINYL CHLORIDE 3.EQUIPMENT AND REAGENTS
From 0 to 100C, to the nearest 0,5 C 3.2.GRADUATED THERMOMETER
N/A 3.3. LINT FREE CLOTH OR ABSORBENT PAPER
With polyethylene backing. 3.4.WATERPROOF ADHESIVE TAPE
With resistivity greater than 200 000 /cm. 3.5DE-IONISED WATER
Plates. or flat parts, of minimum dimensions 85 x 165 mm (thickness 0.8 mm t 0,1 mm if metal supports covered with the product(s) to be tested. 4.TEST SPECIMENS
The test specimens ar conditioned at 23 C +2 C and 50 % +5 % relative humidity for : 5.CONDITIONING OF TEST SPECIMENS
7 days in the case of air drying paints,
24 hours in the case of oven drying paints

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Condensation Test Chamber Design According to DIN EN ISO6270-2, DIN50017 → The condensation test chamber meets GM, FORD and other automobile condensate water test standards. It can implement standards such as ISO6270-2 DIN50017, DIN50018 and other experimental conditions to test the corrosion resistance of the test materials (such as coating steel, etc.) Through the simulation and enhancement of the natural environment, the water condensation test chamber from Wewon Tech can measure the corrosion resistance of the tested material exposed to the corresponding natural environment in a short time, So as to provide data and basis for users to screen products or formulations. Read more…


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Operate in premises with a temperature of 23℃ +2℃ 6.METHOD OF OPERATION
After the assembly (3.1) has been carried out,fi the tank with de-ionised water (3.5) up to a height of 100 mm.
Bring the water in the tank to a temperature of 60 C 1 C, check with the thermometer (3.2)
Arrange the paint test specimens in the windows provided on the cover, fixing their lower part to the cover by the means of waterproof adhesive tape (3.4).
The unoccupied windows must be blanked out ; avoid lifting the paint test specimens too often in order to reduce to a minimum disturbances caused by the opening of the device.
Top up the level to 100 mm with water at 60 C every day to replace losses due to evaporation.
Examine the test specimens after the exposure time specified in the documents.
To carry out the examination, wipe the test specimens quickly, without rubbing them, with the soft cloth (3.3).
After 1 hour at 23 C +2 C and 50 % +5 % relative humidity, carry out :
(1)the grading of the blistering, loss of gloss and change of colour according to the indications in 7.0.
(2)the adhesion test in conformity with methode d’essai D25 1075
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