What is specular gloss?
What is specular gloss?
Specular gloss is related to light reflection from the surface of an object that can be partly transparent, opaque or porous. Visual appearance of a product is one of the most critical factors in the industrial manufacturing process.
How is specular gloss measured?
A glossmeter (also gloss meter) is an instrument which is used to measure the specular reflection (gloss) of a surface. Gloss is determined by projecting a beam of light at a fixed intensity and angle onto a surface and measuring the amount of reflected light at an equal but opposite angle.
What is ASTM D523?
ASTM D523 is a standard test method for specular gloss. It is a direct measurement taken with a “gloss meter”. Typically measurements will be taken on a flat, homogeneous and clean surface. Micom offers ASTM D523 Gloss testing services as part of its Surface Coatings testing offering.
How do you measure gloss of paint?
Using a gloss meter, gloss is measured by directing a constant intensity light beam at a fixed angle to the test surface and then by monitoring the amount of reflected light at the same angle. Different surfaces require different reflective angles.
What is gloss level?
A gloss finish indicates that it is shiny or glass-like. The gloss of a finish suggests a level of gloss from flat to gloss or ‘glossy’. The gloss of a surface is described as the reflection of light from the surface that is independent of color. This is also known as the “objective gloss”.
How do you calibrate a gloss meter?
During a gloss meter service / calibration at Rhopoint the following process is followed:
- Use of 8 NIST traceable tiles.
- Instrument and tile calibrated.
- Pre-adjustment test of linearity, repeatability and accuracy.
- Post-adjustment test of linearity, repeatability and accuracy.
- Report of pre and post-adjustment results.
How does gloss meter work?
A glossmeter (also gloss meter) is an instrument which is used to measure specular reflection gloss of a surface. Gloss is determined by projecting a beam of light at a fixed intensity and angle onto a surface and measuring the amount of reflected light at an equal but opposite angle.
What is ASTM D2244?
ASTM D2244 is a standard test method for calculating color differences from instrumentally measured color coordinates. The sample color is measured and the results can be expressed on the L, a, b or x, y, z scales. Micom Laboratories offers the ASTM D2244 test as part of paint and coating testing services.
What are the levels of paint gloss?
Their common names, from the most dull to the most shiny, include: matte, eggshell, satin, silk, semi-gloss and high gloss….The returned light into the apparatus allows the gloss to be classified as follows:
- Full Gloss: 70–90%
- Semi-Gloss: 41–69%
- Satin: 26–40%
- Sheen: 15–25%
- Eggshell: 10–15%
- Matte: <10%
What does 60 degree gloss mean?
60° Value. Notes. High Gloss. >70 GU. If measurement exceeds 70 GU, change test setup to 20°
What is high gloss?
High gloss paint is known for being super shiny and light reflecting, giving it an almost mirror-like look. Most designers would consider it a specialty finish, as it creates such a brilliant sheen. So you can the use same color in a different sheen for the majority of the wall, and then add a high gloss accent.
