AESUB blue – vanishing scanningspray
10Pages

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 1 of 10 SPRAY | SCAN | DONE General Information 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 projected on and/or reflected off the surface back into the detector 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. Scanningspray Vertriebs GmbH Johann-Strauß-Str. 13 | 45657 Recklinghausen – Germany | info@aesu

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 2 of 10 In general, matting sprays used in 3D metrology for antireflective coating can be classified into the following two product groups: Semi-permanent 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 1. AESUB blue - value proposition AESUB blue is a self-vanishing scanning spray developed by...

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 3 of 10 3. Material compatibility Material compatibility for specific applications cannot be guaranteed. Users should check specific material compatibility before use. AESUB blue contains solvents. See the safety data sheet (https://aesub.com/download) for further information. 4. Layer thickness The layer thickness of AESUB blue ranges between 8 μm and 15 μm depending on the user-specific application. 5. Surface coating AESUB blue forms a consistent and very homogeneous coating on the surface of the object to be...

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 4 of 10 SPRAY Apply AESUB blue from 15-20 cm away. Gently push down the spray button and move the can across the area using even, back and forth strokes. Move at a consistent pace to achieve an even coating. Spray over the entire surface that you will be scanning. AESUB blue is applied "wet". The solvent vanishes within a few seconds while the coating remains on the surface. The degree of whiteness of the coating still increases for a couple of seconds. Increase spraying distance or pace in case of drop formation or...

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 5 of 10 7. Vanishing / Sublimation The sublimation time of AESUB blue depends on the following factors: a) Temperature  high ambient temperatures shorten sublimation time  low ambient temperatures extend sublimation time, even above 4 hrs possible b) Airflow  ventilation shortens sublimation time c) Surface structure  features such as pockets, holes or grooves within the surface structure extend sublimation time  even surface structures shorten sublimation time  sublimation starts at exposed areas, such as...

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 6 of 10 8. Scanning of big objects If the size of the measurement object exceeds the measurement volume of the sensor many times, it is advisable to split the digitization into several sections. This procedure prevents premature sublimation in areas that have not yet been digitized and thus prevents re-spraying. Method A: • Stick the reference points onto the measuring object before spraying Perform a full photogrammetry Scanningspray Vertriebs GmbH Johann-Strauß-Str. 13 | 45657 Recklinghausen – Germany |...

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 7 of 10 • Apply AESUB blue onto the first section Remove the coverage from the reference points Scanningspray Vertriebs GmbH Johann-Strauß-Str. 13 | 45657 Recklinghausen – Germany | info@aesub.com

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 8 of 10 • Perform the first scan Proceed accordingly with all other sections until the entire object is digitized Scanningspray Vertriebs GmbH Johann-Strauß-Str. 13 | 45657 Recklinghausen – Germany | info@aesub.com

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 9 of 10 Method B: • Apply AESUB blue onto the first section and stick the reference points for this section on the spray layer Perform the first scan Proceed accordingly with all other sections until the entire object is digitized. Clean sprayed-over points if necessary, in order to achieve a problem-free connection of the sections. Scanningspray Vertriebs GmbH Johann-Strauß-Str. 13 | 45657 Recklinghausen – Germany | info@aesub.com

Technical Datasheet AESUB blue – vanishing scanningspray rev. 02/2022 page 10 of 10 9. Residue analysis Independent experts examined AESUB blue for potential residues and came to the following conclusion: “The proven and quantified sum of all semi-volatile compounds and the identity of the individual compounds were within the expected range. Based on the application of 1 - 2mg/sq.cm when applied according to the printed description, approximately 10ng substance/sq.cm remain on the sprayed object. Such a residue is neither optically recognizable, nor can it be detected with surface...