Proceq ZCC 2087 Series User manual

ZCC 2087
Cross-cut Tester
Instruction manual

Page 3
Index
Exclusion of liability 4
1 Description of device 5
2 Safety information 5
2 1 Symbols used 5
2 2 Safety notes and hints 5
3 Delivery of device 6
3 1 Damages during carriage 6
3 2 Shipment 6
3 3 Standard delivery 7
3 4 Options 8
4 Device overview 9
4 1 Flexible cutting head 10
4 2 Multi-blade cutting tool 11
5 Choice of the appropriate spacing of cuts acc to DIN EN ISO 2409 12
6 Choice of the appropriate spacing of cuts acc to ASTM D3359 12
7 Handling ZCC 2087 1 to ZCC 2087 4 acc to DIN EN ISO 2409 13
7 1 Removing loose particles 14
8 Handling ZCC 2087 5 and ZCC 2087 6 acc to ASTM D3359 15
9 Overview – Cross-cut classification 16
10 Maintenance and cleaning 17
10 1 Maintenance which can be carried out by the user 17
10 2 Cleaning of the device 17
11 Technical specifications 18
Glossary 19

Page 4
Exclusion of liability
Illustrations, descriptions as well as the technical specifications conform to the
instruction manual on hand at the time of publishing or printing However, Zehntner
GmbH Testing Instruments policy is one of continuous product development All
changes resulting from technical progress, modified construction or similar are
reserved without obligation for Zehntner to update
Some of the images shown in this instruction manual may be of a preproduction
model and/or are computer generated; therefore the design / features of the
delivered product may differ in various aspects
The instruction manual has been drafted with the utmost care Nevertheless, errors
cannot be entirely excluded The manufacturer will not be liable for errors in this
instruction manual or for damages resulting from any errors
The manufacturer will be grateful at any time for suggestions, proposals for
improvement and indications of errors
© Zehntner GmbH Testing Instruments

Page 5
1 Description of device
The ZCC 2087 is an ergonomically designed cross-cut tester with a special flexible
cutting head with exchangeable cutting tool for evaluation of adhesion of single- or
multi-coat systems
2 Safety information
2 1 Symbols used
This note comprises instructions needed to follow directions, specifications,
proper working procedure and to avoid data loss, damage or destruction of
the instrument
This note signifies a warning about dangers to life and limb if the apparatus
is handled improperly Observe these notes and be particularly careful in
these cases Also inform other users on all safety notes Besides the notes
in this instruction manual the generally applicable safety instructions and
regulations for prevention of accidents must be observed
2 2 Safety notes and hints
The ZCC 2087 is exclusively intended for the evaluation of adhesion of single-
or multi-coat systems Any other use is considered as being not in
accordance with the intentions of the manufacturer and is conducted at the
user's own risk The manufacturer is not liable for any resulting damages
Unauthorized modifications and changes of the ZCC 2087 are not permitted
Reproduction of the ZCC 2087 without permission is not allowed
Zehntner GmbH Testing Instruments refuses all warranty and liability
claims for damages caused by usage of the ZCC 2087 in combination with
non-original accessories, or accessories from 3
rd
party suppliers
All local safety regulations apply for the operation of the ZCC 2087

Page 6
3 Delivery of device
3 1 Damages during carriage
On the receipt of the goods, check for any visible damages on the packaging If it is
undamaged you may sign the receipt of the goods If you do suspect by your visual
inspection that damage has occurred, make a note of the visible damage on the
delivery receipt and request the courier to countersign it Moreover, the courier
service must be held responsible for the damage in writing
If a hidden damage is discovered while unpacking, you have to inform and hold the
courier liable immediately in the following way: “When opening the parcel we had to
notice that … etc “ This superficial checking of the goods has to be done within the
time limit set by the carrier, which is normally 7 days However, the period could
vary depending on the courier Hence, it is recommended to check the exact time
limit when receiving the goods
If there are any damages also inform your authorized Zehntner agent or Zehntner
GmbH Testing Instruments immediately
3 2 Shipment
Should the device be transported again, it must be packaged properly Preferably
use the original packaging for later shipments Additionally use filling material in
the package to protect the device from any shock during carriage

Page 7
3 3 Standard delivery
The following parts are included in the delivery:
Cross-cut tester with flexible cutting head (to
guarantee reproducible cross-cuts) and
multiblade cutting tool according to version (see
technical specifications)
Allen key
Brush (for versions ZCC 2087 1 to ZCC 2087 4)
Roll of adhesive tape ACC753
(length: 50 m, width: 25 mm)
Magnifier
Certificate of manufacturer
Carrying case

Page 8
3 4 Options
ACC183 adhesive tape (1 roll with 65 m, width 25
mm)
ACC204 adhesive tape (1 roll with 66 m, width 50
mm)
Multi
-
blade cutting tool with
6
blades according to
DIN EN ISO 2409
ACC064 – spacing: 1 mm
ACC094 – spacing: 2 mm
ACC095 – spacing: 3 mm
Multi-blade cutting tool according to ASTM D3359
ACC096 – with 11 blades, spacing: 1 mm
ACC098 – with 6 blades, spacing: 2 mm
ACC166 Multi-blade cutting tool with 11 blades,
spacing: 1 5 mm
Zehntner GmbH Testing Instruments refuses all warranty and liability
claims for damages caused by usage of the ZCC 2087 in combination with
non-original accessories, or accessories from 3
rd
party suppliers

Page 9
4 Device overview
(1) Flexible cutting head
(2) Ergonomic handle
(3) Multi-blade cutting tool
(4) Fixing screw
(4)
(
2
)
(
1
)
(3)

Page 10
4 1 Flexible cutting head
The ZCC 2087 is equipped with a specially designed flexible cutting head which
ensures reproducible cross cuts It avoids unbalanced pressure by the operator and
provides a uniform cutting depth over the complete width Therefore it is also
suitable for untrained users
Flexible cutting head ensures
reproducible cross-cuts

Page 11
4 2 Multi-blade cutting tool
Our multi-blade cutting tools (3) are equipped with the
amount of blades required by the relevant standard If one
side is worn out, the multi-blade cutting tool (3) can be
rotated onto an unused side We suggest to mark the worn
out side, e g with a water proof marker and with a black
tip
• Loosen the fixing screw (4) with the Allen key
• Remove the fixing screw (4) and the multi-blade cutting tool (3)
• Rotate the multi-blade cutting tool (3) to the next unused blade and re-insert it
in this position
• Insert the fixing screw (4) and push the multi-blade cutting tool (3) on the
guiding pin
• Refasten the fixing screw (4) with the Allen key
When all three sides of the blades are worn out, the reverse side of the blade can
also be used Remove the multi-blade cutting tool turn and re-inserted it
If all six blades are worn out, either a spare multi-blade cutting tool has to be
bought at Zehntner GmbH Testing Instruments, respectively by an authorized
Zehntner agent or the multi-blade cutting tool has to be sharpened at Zehntner
Correct inserting of the
cutting tool

Page 12
5 Choice of the appropriate spacing of cuts acc to DIN EN ISO 2409
Film thickness
in μm
Substrate
Spacing of cuts
in mm
0 to
60
hard
1
0 to
60
soft
2
above
60 to
120
hard and soft
2
above
1
20 to
250
hard and soft
3
The cross-cut test is not suitable for substrates with a film thickness over 250 μm
6 Choice of the appropriate spacing of cuts acc to ASTM D3359
Film thickness
in μm
Film thickness
in mils
Spacing of cuts
in mm
0 to
50
0 to
2 0
1
50 to
125
2 0 to
5
2
To test film thickness over 125 μm use test method A, as described in the standard

Page 13
7 Handling ZCC 2087 1 to ZCC 2087 4 acc to DIN EN ISO 2409
Hold the cross-cut tester only at the handle
The flexible cutting head should always move freely
Never use your other hand or finger of the leading hand to add additional
pressure to the cutting head during testing
Always pull the cross-cut tester, never push it
If the panel is made of wood or a similar material, apply the cuts with an angle
of 45° to the direction of the grain
• Place the conditioned test panels on a rigid, flat surface to prevent any
deformation of the panel during the test
• Carry out the test at a temperature 23 ± 2 °C and relative humidity of 50 ± 5 %
• Hold the ZCC 2087 with the blade vertical to
the test panel surface
• Make two successive cuts, the second cut
crossing the original one at 90°, generating
a lattice pattern All cuts shall penetrate the
coating completely down to the substrate
surface The indentation depth into the
substrate should be as low as possible
• Remove any loose particles from the area of cutting For suitable methods
refer to chapter 7 1 on page 14
• Carefully examine the cross-cut area and compare it with the classification
table in order to determine the cross-cut value
• Test at least on three areas on the panel
• Issue a test report
Cutting direction

Page 14
7 1 Removing loose particles
According to the informative Annex A of the DIN EN ISO 2409 the following three
methods are suitable for removing loose particles:
Brushing
• Brush the panel lightly using a soft brush several times backwards and
forwards along the diagonals of the lattice pattern
Adhesive tape
• Remove two complete laps of tape and discard
• Remove an additional length at a steady (that is not jerked) rate and cut a
piece of about 75 mm long Place the center of the tape over the lattice in a
direction parallel to one set of cuts and smooth into place over the area of the
lattice
• To ensure good contact with the coating, rub the tape firmly with a fingertip or
the nail
• Remove the tape within 5 minutes after applying Grasp the free end of the
tape and pull it off steadily in 0 5 s to 1 0 s at an angle which is as close as
possible to 60°
Since using an adhesive tape is no longer a normative reference, it is possible
to use any adhesive tape However, we suggest to use a tape with an adhesive
strength on steel between 6N and 10 N The adhesive strength of coatings can
differ significantly from the manufacturer's specifications on steel Therefore
it is important to always use the same adhesive tape in order to get
reproducible results
Compressed air or Nitrogen
• Remove all loose particles with compressed air or nitrogen

Page 15
8 Handling ZCC 2087 5 and ZCC 2087 6 acc to ASTM D3359
Hold the cross-cut tester only at the handle
The flexible cutting head should always move freely
Never use your other hand or finger of the leading hand to add additional
pressure to the cutting head during testing
Always pull the cross-cut tester, never push it
• Place the test panel on a firm base
• Successively make two cuts about 20 mm (0 79 in ) long, the second cut
crossing the first one at 90°, generating a lattice pattern Cut through the film
to the substrate in one steady motion using just sufficient pressure on the
cutting tool to have the cutting edge reach the substrate (For coatings having
a dry film thickness up to and including 50 μm (2 mils) – eleven cuts, for
coatings having a dry film thickness between 50 μm (2 mils) and 125 μm (5
mils) – six cuts)
• Brush the film lightly with a soft brush or tissue to remove any detached
flakes or ribbons of coatings
• Remove two complete laps of tape and discard
• Remove an additional length at a steady (that is not jerked) rate and cut a
piece about 75 mm (2 95 in ) long
• Place the center of the tape over the grid and in the area of grid smooth into
place by a finger
• To ensure good contact with the film rub the tape firmly with the eraser on the
end of a pencil
• Within 90 ± 30 s of application, remove the tape by seizing the free end and
rapidly (not jerked) back upon itself at as close to an angle of 180° as possible
• Inspect the grid area for removal of coating using a magnifier and rate the
adhesion in accordance with the cross-cut scale
• Repeat the test in two other locations on each test panel
• Issue a test report

Page 16
9 Overview – Cross-cut classification
Classification of test results
Cross-cut According to
DIN EN ISO 2409
According to
ASTM D3359
0:
The edges of the cuts are
completely smooth; none of
the squares of the lattice is
detached
5B
The edges of the cuts are
completely smooth, none
of the squares of the
lattice is detached
Percent area removed:
0 % - none
1:
Detachment of small flakes
of the coating at the
intersections of the cuts A
cross-cut area not greater
than 5 % is affected
4B
Small flakes of the
coating are detached at
intersections, less than
5 % of the area is
affected
2:
The coating has flaked
along the edges and/or at
the intersections of the
cuts A cross-cut area
greater than 5 %, but not
greater than 15 % is
affected
3B
Small flakes of the
coating are detached
along edges and at
intersections of cuts The
area affected is 5 to 15 %
of the lattice
3:
The coating has flaked
along the edges of the cuts
partly or wholly in large
ribbons, and/or it has
flaked partly or wholly on
different parts of the
squares A cross-cut area
greater than 15 % but not
greater than 35 % is
affected
2B
The coating has flaked
along the edges and on
parts of the squares The
area affected is 15 to 35
% of the lattice

Page 17
Cross-cut According to
DIN EN ISO 2409
According to
ASTM D3359
4:
The coating has flaked
along the edges of the cuts
in large ribbons and/or
some squares have
detached partly or wholly A
cross-cut area greater than
65 % is affected
1B
The coating has flaked
along the edges of cuts in
large ribbons and whole
squares have detached
The area affected is 35 to
65 % of the lattice
5:
Any degree of flaking that
cannot even be classified by
classification 4
0B
Flaking and detachment
worse than classification
1B
10 Maintenance and cleaning
10 1 Maintenance which can be carried out by the user
The user is only allowed to carry out the following maintenance and cleaning work:
• Outer cleaning of the device as described below
All other maintenance and repair work shall only be carried out by Zehntner
GmbH Testing Instruments or your authorized Zehntner agent, otherwise all
the guarantee and liability claims will be void
10 2 Cleaning of the device
For cleaning of the aluminium housing use a proper, soft cloth Only use soft
cleaning agents
Do not use aggressive solvents or cleaning agents
If the device has to be disinfected, do not use disinfectants that contain sodium
hydroxide

Page 18
11 Technical specifications
Version Number of
blades Spacing of blades Standard
ZCC 2087 1 6 1 mm (0 04“) DIN EN ISO 2409
ZCC 2087 15 11 1 5 mm (0 06“)
ZCC 2087 2 6 2 mm (0 08“) DIN EN ISO 2409
ZCC 2087 3 6 3 mm (0 12“) DIN EN ISO 2409
ZCC 2087 4 6
1 mm (0 04”), 2 mm
(0 08”) and 3 mm (0 12”)
,
exchangeable
DIN EN ISO 2409
ZCC 2087 5 11 1 mm (0 04”) ASTM D3359
ZCC 2087 6 6 2 mm (0 08”) ASTM D3359
Material head: red anodised aluminium
Material multi-blade cutting tool: hardened steel
Dimensions (LxWxH): 160 x 26 x 80 mm (6 30 x 1 02 x 3 15“)
Weight: 245 g (0 54 lbs)
Warranty: 2 years

Page 19
Glossary
A
Adhesive tape 14
B
Brushing 14
C
Cleaning the device 17
Compressed air or nitrogen 14
Cross-cut values 16
Cutting headf 10
D
Damages during carriage 6
Device
Damages 6
Delivery 6
Description 5
Standard delivery 7
Device overview 9
E
Evaluation 16
Exclusion of liability 4
Extent of delivery 7
F
Flexible cutting head 10
H
Handling
acc to ASTM D3359 15
acc to DIN EN ISO 2409 13
I
Instrument
Damages 6
Delivery 6
Description 5
Standard delivery 7
M
Maintenance 17
Multi-blade cutting tool 11
N
Nitrogen 14
O
Options 8
P
Particle removing 14
R
Removing loose particles 14
S
Safety information 5
Shipment 6
Spacing of cuts
acc to ASTM D3359 12
acc to DIN EN ISO 2409 12
T
Technical specifications 18
Transportation
Damages 6
V
Values 16

Page 20