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Novo Gloss IQ RhopointsOrange peel, DOI, Haze

20/60° • 20/60/85° GLOSSMETER
DOI METER
HAZE METER
GONIOPHOTOMETER

THE RHOPOINT IQ QUANTIFIES SURFACE QUALITY PROBLEMS THAT ARE INVISIBLE TO A STANDARD GLOSSMETER

The Rhopoint IQ measures image quality, it is the only hand held instrument that profiles how light is reflected from a surface. Standard glossmeters only measure how much light is reflected and are not sensitive to effects which dramatically reduce appearance quality.

 

Orange peel

 

 

 

 

 

 

 

THE RHOPOINT IQ MEASURES
20/60/85° GLOSS • HAZE DISTINCTNESS OF IMAGE RSPEC GONIOPHOTOMETRIC CURVES
GLOSS– measurement proportional to the amount of light reflected from surface.
Geometry: For best results the correct measurement geometry should be chosen based on the reflectance of the material: Matt Finish 85°, Mid Gloss 60°, High Gloss and Metallics 20°.
Measurement Unit: GU
RSPEC– The peak gloss value over very narrow angle.
Usage – RSPEC is very sensitive to small changes in texture and is used to identify subtle differences in surface smoothness.

REFLECTANCEHAZE– An optical effect caused by microscopic textures or residue on a surface.
Visible Symptoms: Milky Finish apparent on surface, loss of reflected contrast, halos and patterns can be seen around reflections of high intensity light sources.
Causes: Poor dispersion, raw material incompatibility, additive migration, vehicle quality, stoving/drying/curing conditions, polishing marks, fine scratches, ageing, oxidisation, poor cleanliness/surface residue.
Measurement Unit: LogHU
DISTINCTNESSOFIMAGE– A measure of how clearly reflected image will appear in reflective surface.
Symptoms of Poor DOI: Orange peel, brush marks, waviness or other structures visible on the surface. Reflected images are distorted.
Causes: Application problems, incorrect coating flow, coating viscosity too high/lowDOI, sag or flow of coating before curing, incorrect particle size/distribution, overspray, improper flash/recoat time, inter coat compatibility, incorrect cure times and cure temperature.
Measurement Scale: 0100,
100 is perfect smooth surface.
GONIOPHOTOMETRICPROFILE
– The instrument displays
surface reflectance profiles 1723°.
The shape of the curve describes how the light has interacted with the surface. Sharp curves close to the specular direction indicate smooth highly reflective surfaces.

Technical Specification

Gloss: Resolution 0.1 GU • Repeatability 0.2 GU • Reproducibility 0.5GU
RSPEC: Peak Specular Reflectance @ 20° +/- 0.09375°
Haze: Resolution 0.1 HU • Repeatability 0.2 HU • Reproducibility 0.5 HU
DOI: Resolution 0.1 • Repeatability 0.2 • Reproducibility 0.5
Power: USB or mains rechargeable in 4.5 or 2.5 hours
Battery life: 17hrs+ continuous operation or 20,000+ readings
Memory: On board memory for 999+ readings with full goniphotometric profiles
Dimensions: 65 x 140 x 50mm (H x W x D)
Weight: 790g

Learn more about DOI, Haze measurement

or visit our supplier Rhopoints Instrument in UK about Orange peel DOI


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