1) Testing was conducted on plastic samples molded with conventional injection molding versus Roctool technology to analyze surface quality differences. 2) Using Roctool technology resulted in removal of weld lines and sink marks that were visible in conventional molding samples. However, there was no significant improvement in gloss values or color differences between the two processes. 3) Roughness measurements showed equivalent Ra values between the two molding technologies, and replication rate curves for surface textures overlapped, indicating no visible improvement from using Roctool.

1. FULL HD PLASTIC ™ REPORT

2. ΔL Δa Δ
Rate replication from the mold surface (%)
Rev.: A
GLOSS RESULTS (ISO 2813 Standard)
T=80°C - Conventional - WITHOUT 99,9 GU 101,2 GUT=140°C - Roctool - WITH
TRADE NAME
-0,11
17/01/2018 TRIAL # HDP-17-024 MOLD HD PLAQUE
MATERIAL
FAMILY PA
FORM
FOR-TEC-111
Page 1 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
Ultramid® GRADE A3L BLACK 7793
DATE
DELTACOLOR SCALE
L* ( Lightness)
MEASUREMENTS
PROCESS TECHNOLOGY
0,04
T=140°C - Roctool - WITH
SUPPLIER BASF
0,13
ΔE
COLOR
DIFFERENCE
LAB - COLOR DEPHT RESULTS (DIN 5033 Standard)
-0,06
T=80°C - Conventional - WITHOUT
25,96 -0,08 -0,40
25,85
a*
-0,04
b*
-0,46
20729
79% 83%
4%
Volume cavity (µm3
)
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.
Roughness profile - Conventional VS Roctool Technology
T=140°C - Roctool - WITHT=80°C - Conventional - WITHOUT
PICTURES OF INJECTED SAMPLES
3D TEXTURATION RESULTS
T=80°C - Conventional - WITHOUT T=140°C - Roctool - WITH
Conventional (µm3
) Roctool technology (µm3
) Improvement (%)Roughness parameters
19839
Visible weld line
C
C

3. CIM H&C CIM H&C CIM H&C
1,01 1,05 1,45 1,55 2,25 2,24
0,79 0,78 1,2 1,18 1,81 1,83
0,93 0,93 1,15 1,14 1,72 1,7
COMMENTS
Sa (µm)
VDI 18 (Ra=±0.80 µm)
%
Quality surface characterization:
1) Visible improvements using Roctool technology are observed: weld line and sink marks are removed.
2) No significant improvement on the gloss value and impact of Roctool technology on the color.
3) No visible improvement are observed on the VDI textures and that is confirmed by the roughness measurements with Ra values equivalent
between the 2 technologies. Also, the replication rate measurement shows good overlay of "Conventional vs Roctool" curves.
To conclude, the high flow property with a short molecular chains of the Ultramid® A3L (BASF) allows a good replication of the texture and high
surface quality even in conventional molding condition. But, we oberved in Roctool condition removal of weld line induced by the hole and sink
mark (thickness variation) that are visible in conventional molding.
Note: CIM: Conventional Injection Molding. H&C: heat and Cool (Roctool)
FORM
FOR-TEC-111 Rev.: A
Page 2 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
%
VDI 27 (Ra=±2.20 µm)
0%4%
VDI 22 (Ra=±1.26 µm)
%
7%
Sa (µm)
Sa (µm)
LASER
1%
-1%
-1%
0% -1%
-2%EDM
CHEMICAL
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
di e sio s L for light ess a d a a d for the olor oppo e ts gree –red
a d lue– ello .
In the context of HD Plastics™, a spectrophotometer is used to carried
out the LAB alue : spe tro-guide / gloss BYK . HD Plasti s™ 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.
I the o te t of HD Plasti s™, a glossmeter is used to carried out the
gloss value with a incident angle of 60° : spectro-guide 45/0 gloss (BYK).
HD Plasti s™ is follo i g the ISO 8 Sta dard.
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