SPRAY | SCAN | DONE

Even with state-of-the-art scanners, it is necessary to apply matting spray in several application cases:

a) Transparent parts
As we are dealing with optical technologies, light needs to be reflected off the surface back into the sensor of the scanner. In case of a transparent surface, however, the light will go through the surface instead of being reflected by the same. In consequence, the scanner is not able to capture the surface structure.

b) Reflective parts
In case of reflective parts, such as a mirror, the light beams will be reflected in a focused way instead of in a diffused way. This means that the chance of a beam hitting the reflector of the scanner is greatly reduced and the scanner will only capture a fraction of the reflected light beams.

c) Deep Pocket
When the object to be scanned has deep pockets, the scanner receives a reflection from the walls of the pocket onto the bottom. This causes disturbance in the pattern of the light manifesting in the scan as “artefacts” or bad data.

d) High quality and accuracy
When quality and accuracy are important, you might want to apply spray to remove as much as possible all the causes like colour differences, differences in reflection, texture, etc.
The use of spray creates a matt, white coat reducing reflection and other inhomogeneities and thus provides perfect scanning condition.

In general, matting sprays used in 3D metrology for antireflective coating can be classified into the following two product groups:

Permenent sprays

• surface remains white after scan
• cleaning required or disposal of scanned object

Vanishing sprays

• coating evaporates automatically
• no cleaning after scanning required
• no pigment-contamination of laboratories, sensors, environments, scanners and users

AESUB blue - value proposition

AESUB blue is a self-vanishing scanning spray developed by scanning experts. The spray evaporates within a few hours, meaning that there is no need for cleaning after scanning. Unlike traditional sprays, AESUB blue does not contain pigments and thus avoids pigment-contamination of sensitive areas, such as laboratories and production sites, equipment and users. You can therefore apply AESUB blue directly, on spot of scanning, without any costly transport to avoid said pigment-contamination in sensitive areas. Overall, AESUB blue greatly increases efficiency and productivity within the digitizing processes.

AESUB blue characteristics are:

• vanishing
• time and cost savings – no post-cleaning necessary
• layer thickness of ~8-15 μm
• free of pigments – spray dust does not damage the sensitive technical scan equipment
• consistent and homogenous and dry to the touch coating
• reference points stick on the coating
• optimized material compatibility
• excellent scannability