2. ΔL Δa Δb
Rate replication from the mold surface (%)
Rev.: A
GLOSS RESULTS (ISO 2813 Standard)
T=90°C - Conventional - WITHOUT 18,4 GU 102,7 GUT=180°C - Roctool - WITH
TRADE NAME
0,25
02/05/2018 TRIAL # HDP-18-002 MOLD HD PLAQUE
MATERIAL
FAMILY PPE+PS GF20
FORM
FOR-TEC-111
Page 1 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
NORYL™ RESIN GRADE GFN2
DATE
DELTACOLOR SCALE
L* ( Lightness)
MEASUREMENTS
PROCESS TECHNOLOGY
-0,04
T=180°C - Roctool - WITH
SUPPLIER SABIC
0,27
ΔE
COLOR
DIFFERENCE
LAB - COLOR DEPHT RESULTS (DIN 5033 Standard)
-0,08
T=90°C - Conventional - WITHOUT
27,45 -0,12 -1,24
27,70
a*
-0,16
b*
-1,32
Note: L* = 0 yields black and L* = 100 indicates diffuse white. a*: negative values indicate green while positive values indicate red. b*: negative values indicate blue and positive
values indicate yellow. ΔE>0,2 usual color tolerance.
Roughness profile - Conventional VS Roctool Technology
T=180°C - Roctool - WITHT=90°C - Conventional - WITHOUT
PICTURES OF INJECTED SAMPLES
3D TEXTURATION RESULTS
T=90°C - Conventional - WITHOUT T=180°C - Roctool - WITH
Conventional (µm
3
) Roctool technology (µm3) Improvement (%)Roughness parameters
7587 36376
20% 94%
379%Volume cavity (µm
3
)
C
C
3. Note: In conventional molding, the measurements of the VDI roughness are not mentionned as the presence of glass fibers on the surface disturb the measurement impacting the Ra
value.
VDI 18 (Ra=±0.80 µm) VDI 22 (Ra=±1.26 µm) VDI 27 (Ra=±2.20 µm)
Roctool technology 180°C
1,02
0,80
1,15 1,31
0,87 1,60
1,50 1,72
2,45 Ra (µm)
EDM Ra (µm)
LASER Ra (µm)
CHEMICAL
COMMENTS
Rz (µm) 5,85 2,12 -64%
Roughness parameters
Quality surface characterization:
1) Visible improvements using Roctool technology are observed: weld line are removed.
2) Huge improvement on the gloss value is observed with removing of white marks. However, we measured a small impact of the mold temperature on the color perception and
Roctool technology allows a darker color with a perfect surface finish compared to conventional process.
3) The different textured areas hightlight the positive impact on the replication using Roctool technology. Also, the different roughness are well felt when touched. The roughness
measurement carrie out using optical rugosimeter confirms the above with repliction rate of up to 94% with Roctool compared to conventional technology (20%) .
Rev.: A
Page 2 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
FORM
FOR-TEC-111
Conventional (90°C) Roctool technology (180°C) Improvement (%)
TEXTURE RESULTS - Rz (Mean roughness depth)
T=90°C - Conventional - WITHOUT T=180°C - Roctool - WITH
TEXTURE RESULTS - Ra (Amplitude roughnes parameter)
4. MEASUREMENT AREAS
1) The high gloss area framed in blue is the measurement area for the gloss, color and
specific roughness Rz* .
2) The red rectangle define the nano-replication area.
3) The green frame correspond to the multi-textured (VDI) area were the roughness is
measured.
*Rz: Maximal amplitude roughness mesured for filled materials
ROUGHNESS MEASUREMENT PRINCIPLE
Optical rugosimeter is a measuring instrument used to measure a surface's profile, in
order to quantify its roughness.
In the context of HD Plastics™, two information are carried out using Alicona equipment
according to the standard ISO 4287:
- Replication rate : volume of the specific texture defined versus the one textured on the
mold surface quavity
- The surface roughness parameters : Arithmetical mean deviation (Ra) which evaluate
the roughness amplitude on a profile and Mean roughness depth (Rz) which measure
the maximal amplitude roughness average of the profile.
GLOSS PRINCIPLE
FORM
FOR-TEC-111 Rev.: A
Page 3 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
ANNEXES
LAB COLOR PRINCIPLE
The Lab color space describes all perceivable colors in the three dimensions L for
lightness and a and b for the color opponents green–red and blue–yellow.
In the context of HD Plastics™, a spectrophotometer is used to carried out the LAB
value : spectro-guide 45/0 gloss (BYK). HD Plastics™ is following the DIN 5033
Standard.
The graph shows the LAB color scale. The lightness, L*, represents the darkest black at
L* = 0, and the brightest white at L* = 100. The a* and b* value represent the color
channels. a*: negative values indicate green while positive values indicate red. b*:
negative values indicate blue and positive values indicate yellow
Gloss is an optical property which indicates how well a surface reflects light in a
specular direction. It is one of important parameters that are used to describe the visual
appearance of an object. The factors that affect gloss are the refractive index of the
material, the angle of incident light and the surface topography.
In the context of HD Plastics™, a glossmeter is used to carried out the gloss value with
a incident angle of 60° : spectro-guide 45/0 gloss (BYK). HD Plastics™ is following the
ISO 2813 Standard.
The graph shows the gloss scale using glossmeter following 60° angle in the gloss unit.
Low Gloss corresponds to a textured surface, Semi Gloss and High Gloss to high
polished surface.
White
L* = 100
Black
L* = 0
5. Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2
301 35,5 673,33 262 1000,8 507 417 205,83 808,33 471 1076,5 651
Sensors
Mold Pressure Avg
Pressure Drop (%)
PRESSURE DROP BETWEEN THE TWO PRESSURE SENSORS
CONVENTIONAL TECHNOLOGY (90°C) ROCTOOL TECHNOLOGY (200°C)
Pressure (Bar) 500 1000 1500 500 1000 1500
_
_
FLOW LENGTH MEASUREMENT AT DIFFERENT IMM PRESSURE IMM PRESSURE DROP AT ISO FLOW LENGTH
SABIC
30,7% 160°C
500 1000 1500 Flow Length (cm) 10 15
Flow length improvement IMM Pressure improvement
T=90°C - Conventional - WITHOUT (1000 Bar)
PPE+PS GF20
MELT TEMPERATURE (°C) DRYING TEMPERATURE (°C)300
Pressure (Bar)
200°C 57,5% 52,6% 51,5% 200°C - 56,4% - 44,1%
T=200°C - RocTool - WITH (1000 Bar)
180°C
160°C 23,5% 29,9% -38,0% -23,1% _
45,2% 38,8% 35,2% 180°C -49,9% -33,8%
20
FORM
FOR-TEC-101 Rev.: C
Page 1 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
ROCTOOL TECHNOLOGY IMPROVEMENT VERSUS CONVENTIONAL TECHNOLOGY
TRADE NAME GRADE GFN2
PICTURES OF INJECTED SAMPLES
TRIAL # HDP-18-002 MOLD Spiral 1 mm
MATERIAL
FAMILY
120 (4h)
17/04/2018DATE
SUPPLIER
88,21% 61,09% 49,34% 50,64% 41,73% 39,53%
Sensor 1
Sensor 2
Sensor 1
Sensor 2
6. Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2
392,83 195,33 805,67 509,17 1178,2 802,5 418,67 295 865,67 673,33 1259,5 986
-42,6% _
_200°C 31,7% 44,3% 36,4% 200°C
32,2%
1500
ROCTOOL TECHNOLOGY (200°C)CONVENTIONAL TECHNOLOGY (90°C)
IMM PRESSURE DROP AT ISO FLOW LENGTH
180°C
Mold Pressure Avg
22,22%
- 45,6%
PRESSURE DROP BETWEEN THE TWO PRESSURE SENSORS
-36,8%
25
ROCTOOL TECHNOLOGY IMPROVEMENT VERSUS CONVENTIONAL TECHNOLOGY
20Pressure (Bar)
FLOW LENGTH MEASUREMENT AT DIFFERENT IMM PRESSURE
50,28% 36,80% 31,89% 29,54%
HDP-18-002 MOLD Spiral 1.5 mm
SUPPLIER
Flow length improvement IMM Pressure improvement
30
_
500 1000
TRIAL #
Flow Length (cm)1500
FORM
T=220°C - RocTool - WITH (1000 Bar)
MATERIAL
FAMILY PPE+PS GF20 SABIC
TRADE NAME GRADE GFN2
FOR-TEC-101 Rev.: C
Page 2 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
DATE 17/04/2018
MELT TEMPERATURE (°C) 300 DRYING TEMPERATURE (°C) 120 (4h)
PICTURES OF INJECTED SAMPLES
T=90°C - Conventional - WITHOUT (1000 Bar)
21,71%Pressure Drop (%)
Sensors
Pressure (Bar) 500 1000 1500 500 1000
17,2% 160°C -27,6% -28,1%
23,9% 180°C
160°C 17,4% 23,3%
20,5%
- 48,4%
Sensor 1
Sensor 2
Sensor 1
Sensor 2
7. Flow Length improvement vs Injection Pressure in function of Mold Temperature/Mold Thickness
Results Evaluations
The graph above shows a flow length for the two thicknesses
at two temperature (90°C and 200°C). By comparing these
curves, a significant flow improvement can be observed. Also,
the following diagram shows the pressure drop measured
between the two sensors for the two thicknesses at 1000 bars
of injection pressure. The reduction of pressure drop in the
cavity is important up to 41%.
GLOBAL COMMENTS & RECOMMENDATIONS
temperature is 200°C regarding to the trials performed with this material. We obtain the longest flow with an important
reduction of the pressure drop compared to the conventional mold temperature.
Note : All the injection trials and the pressure measurements were carried out according to the protocol defined by RocTool (injection process, 2 heating sides,
cold sprue, mold design).
All pressure data are measured using eDart system (RJG).
HDP-18-002 MOLD Spiral
FORM
FOR-TEC-101
MATERIAL
FAMILY PPE+PS GF20 SUPPLIER SABIC
TRADE NAME GRADE GFN2
Rev.: C
Page 3 of 3
Pressure Drop between the 2 Sensors vs Mold Thickness at Injection
Pressure = 1000 Bars
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
DATE 17/04/2018 TRIAL #
MELT TEMPERATURE (°C) 300 DRYING TEMPERATURE (°C) 120 (4h)
