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RHOPOINT 20/60° • 20/60/85° GLOSSMETER
The New Rhopoint IQ can measure all aspects of Reflective appearance
Many industries measure reflective qualities with a simple gloss meter; however gloss measurement
alone is not enough to completely assess reflective qualities.
It is very common for orange peel and haze effects to dramatically reduce the perceived quality of a finish without affecting gloss values.
The Rhopoint IQ measures GLOSS, HAZE and DOI – complete reflective appearance analysis in a single reading.
Paints and coatings manufacturers and applicators, wood coatings, automotive industry, plastics and additives manufacturers, inks and printing, metal polishers, coil coaters, yacht manufacturers and powder coaters are amongst the many industries that are currently assessing surface quality using Rhopoint IQ technology.
Robust and Accurate
The unique all aluminium construction of the Rhopoint IQ provides improved accuracy and reliability over previous generations of gloss instruments.
Ease of Use
A full colour high definition screen and five way touch sensitive buttons make the instrument incredibly easy to read and operate.
Gloss is a simple measure of how reflective a surface is. The Rhopoint IQ is available in two models the IQ 20/60 (for mid-high gloss-mirrored surfaces) or the IQ 20/60/85 (for matt-mid-high-mirrored surfaces).
Gloss measurement with the Rhopoint IQ is guaranteed to be backwards compatible with BYK Microgloss and Rhopoint Novo-Gloss Instruments.
THE RHOPOINT IQ MEASURES
20/60/85° GLOSS • HAZE • DISTINCTNESS OF IMAGE • RSPEC • GONIOPHOTOMETRIC CURVES
GLOSS – A measurement proportional to the amount of light reflected from a 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: G
RSPES– The peak gloss value over a very narrow angle. Usage – RSPEC is very sensitive to small changes in texture and is used to identify subtle differences in surface smoothness.
Measurement Unit: GU
REFLECTANCE HAZE – 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
DISTINCTNESS OF IMAGE – A measure of how clearly a reflected image will appear in a 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/low, 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: 0-100, 100 is a perfect smooth surface.
GONIOPHOTOMETRIC PROFILE – The instrument displays surface reflectance profiles 17-23°. 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.