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Rhopoint IQ Flex 20


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  • Rhopoint star bullet point Designed for the measurement of small and curved surfaces
  • Rhopoint star bullet point DOI / RIQ Meter, (quantify orange peel)
  • Rhopoint star bullet point Hazemeter (reflectance haze)
  • Rhopoint star bullet pointCustom adaptors for the measurement of non-flat surfaces

The Rhopoint IQ Flex 20 measures surface quantity problems, such as orange peel and haze that are not visible to a standard gloss meter. Previously, this technology was only available to measure flat surfaces, however is now available in a newer format that has been designed to measure small & delicate parts as well as curved surfaces. This advanced instrument measured: 20° GLOSS • HAZE• REFLECTED IMAGE QUALITY (RIQ) • DISTINCTNESS OF IMAGE (DOI) • RSPEC. In application, these terms can be defined as:

Gloss: A measurement of the amount of light that is reflected from a surface measured at 20°.

Haze: Haze in an optical effect that is caused by residue or microscopic textures on glass.

RIQ: This is used to quantify effects such as surface waviness and orange peel.

DOI: DOI or distinctness of image, is a measure of how clearly a reflected image will appear on a surface.

RSPEC: Over a very narrow angle, the RSPEC measures the peak gloss value.

  • Interchangeable magnetic adaptors allow reduced measurement spot sizes down to 4mm or 2mm
  • Bespoke 3D printed adaptor jigs available for repeatable sample positioning
  • Alternative rubber, felt or plastic adaptors can be specified for delicate surfaces
  • Non-contact adaptor plates allow the measurement head to be fixed above moving products on line or robotised
  • Single button push to measure all parameters for easy identification of non-conformances
  • Onboard Statistics (max, min, mean, S.D.) and graphs
  • Results batching with user definable names
  • Rhopoint Data Widget – Allows results to be instantly transmitted to any PC package such as Excel, Word, SPC programs etc.
  • Bluetooth Compatibility – transmit data to any smartphone, tablet or PC
  • USB results download to PC without the need to install software

Easy Customisation for Every Application

Measurement of curved surfaces with the IQ Flex 20*

Standard gloss instruments are suited to bigger, flat areas and tests, as curved surfaces can error. The small footprint of the IQ Flex 20 ensures it is much more effective on curved surfaces than a standard glossmeter. As well as this its compact size and shape allows accessibility to hard to reach areas.

  • Curved surfaces

f76edea8e81864dbedb9520113836fb4Rhopoint IQ Flex 20 measures the gloss and haze of curved surfaces

*Requires an adaptor

Measurement of small surfaces

The IQ Flex here at Rhopoint can be easily customised with a magnetic adaptor attachment, which can be interchanged depending on the application.


  • 4 & 2mm are the reduced measurement sizes for smaller parts.

glossmeter to measure the gloss of small surfaces

Bespoke measuring heads

  • Bespoke 3D printed adaptor jigs for repeatable control of curved surfaces.


Convex surface


Concave surface


Complex curve


The Rhopoint IQ 20 quantifies quality problems on surfaces, that are not visible with a conventional glossmeter. The IQ Flex measures the quality of a reflected image. A glossmeter is generally used to measure the ‘shininess’ of a surface however, they are not sensitive to effects that can reduce appearance quality.

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One effect that reduces appearance quality without having a negative effect on the gloss is orange peel. These two test panels can measure equally with a standard glossmeter. The IQ with RIQ/DOI measurements from Rhopoint can quantify the differences.

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Haze is a reoccurring problem when it comes to polished materials and coatings. Haze surfaces usually have a ‘milky’ finish with a shallow reflection. This characteristic can be d9rectly measured with the Rhopoint IQ Flex. THE RHOPOINT IQ MEASURES20/60/85° GLOSS • RSPEC • REFLECTANCE HAZE REFLECTED IMAGE QUALITY • DISTINCTNESS OF IMAGE GONIOPHOTOMETRIC CURVES.

Reflective Haze

Haze is an optical effect that is caused by residue or microscopic textures on a surface.

Visible symptoms of haze include its milky finish and loss of reflected contrast. Patterns and halos can be seen when high intensity light sources cause reflections.

Some causes of haze include additive, poor dispersion, vehicle quality, raw material incompatibility, marks, stoving/curing conditions/drying, fine scratches, oxidations, ageing and poor/surface residue.

Reflective Haze Compensation

The instrument will compensate for reflections within the coatings of highly reflective pigments, speciality pigments and metallic coatings, allowing the haze of any painted surface to be measured.

Reflected Image Quality (RIQ)

Reflected image quality, is used to quantify effects such as surfaces waviness and orange peel. This gives a higher resolution results when compared to DOI. This means it has an improved ability when it comes to mimicking human perception of surface textures, even on high quality finishes such as cars.

Some symptoms on poor RIQ are brush marks, waviness, orange peel or other structures that are visible on the surface.

Some causes could be application problems, high/low coating, incorrect coating flow, overspray, cure temperature, incorrect cure times, sag or flow of coating before curing, incorrect particle size, inter coat compatibility and improper flash/recoat time.

Distictness Of Image (DOI)

DOI measures how clear a reflected image will show in a reflective surface.

IQ Flex 20 measures the gloss, haze and DOI of car body panels after polishing

Swift measurement of every parameter.

Rhopoint IQ Flex 20 measurement screen

Graphical trend analysis and reporting from full onboard statistics.

Rhopoint IQ Flex 20 stats screen

Easy to use in all environments due to the auto rotating measuring screen.

Rhopoint IQ Flex20 trend analysis for small surface gloss measurement

Quick trend analysis due to graphical trend analysis.

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Displays statistics in full for the no of readings in a current batch.

Goniophotometric Curves

The reflectance profile depends on the surface texture. This goniophotometric data can then be downloaded to PC for more in-depth analysis and comparison via a Bluetooth data widget or USB cable.

Easy Batching

User definable batch sizes and names for more efficient and effective reporting.

Rapid data transfer Software-free data transfer.

Software free data transfers using USB connection to PC for immediate recognition of devices. This allows a fast transfer of files to be facilitated using windows explorer or similar.

Direct data input via Bluetooth

Immediately transmits measured readings directly to programme such as MS Excel on your tablet or PC  to make the reporting process easier.



Capable of 2500+ readings per charge, chargeable via USB/PC or mains.



Data Sheets