http://www.acksol.com The purpose with this test was to find out how Controll®INNERSEAL and Controll®INNERSEAL PLUS affect adhesion for two common Epoxy and Acrylic floor paints on impregnated concrete. This test was performed by SP Technical Research Institute of Sweden, Chemistry division (SWEDAC accredited laboratory) according to ISO-4694 standard

1.
KOMSOL INTERNATIONAL | GERMANY | SPAIN | SWEDEN | NORWAY
www.komsol.eu | www.komsol.se
ADHESION TEST
Adhesion - Epoxy + Acrylic floor paint on
Controll®INNERSEAL impregnated concrete
The purpose with this test was to find out how Controll®INNERSEAL and Controll®INNERSEAL
PLUS affect adhesion for two common Epoxy and Acrylic floor paints on impregnated concrete.
This test was performed by SP Technical Research Institute of Sweden, Chemistry division
(SWEDAC accredited laboratory) according to ISO-4694 standard.
Beckers EPOXI EPX-V and Acrylic FLOOR PLUS are two frequently used indoor and outdoor
paints on industrial floors, balconies, walkways etc. They were applied on concrete plates
impregnated with different amount of Controll®INNERSEAL and Controll®INNERSEAL PLUS(+).
As reference was non-impregnated concrete plates used. The impregnated plates cured for three
weeks before they were painted. The adhesion test was done one month after painted.
Result
Controll®INNERSEAL and Controll®INNERSEAL PLUS(+)
improved adhesion for Epoxy. Acrylic
adhesion was also improved by two applications of Innerseal but decreased slightly after 4 and
more. Note that the actual number of applications cannot be used as a fact for real projects as each
concrete surface absorb differently and therefore require different amount of impregnation in
order to fill up pore and capillaries. Puddles of impregnation will for sure decrease adhesion for
paint. In general Epoxy has stronger adhesion than Acrylic. By roughen the impregnated concrete
surface slightly with sandpaper, adhesion improve significantly.
EPOXI FLOOR PAINT - Beckers EPX-V
Mark Product/impregnation
Average
force (N)
Coefficient of
variation (%)
Reference Reference / No impregnation 1000 19
I2 Innerseal / 2 times 1280 29
I4 Innerseal / 4 times 1080 20
I6 Innerseal / 6 times 938 23
I2 I Innerseal PLUS / 1 time 1760 24
I2 II Innerseal PLUS / 2 times 1520 24
I2 III Innerseal PLUS / 3 times 1480 21
Slip 2 Innerseal / 2 times / surface slightly sandpapered 1290 30
Slip 4 Innerseal / 4 times / surface slightly sandpapered 1370 21
Slip 6 Innerseal / 6 times / surface slightly sandpapered 1460 14
(White) ACRYLIC FLOOR PAINT - Beckers Floor Plus
Mark Product/impregnation
Average
force (N
Coefficient of
variation (%)
Reference Reference / No impregnation 702 33
I2 Innerseal / 2 times 807 31
I4 Innerseal / 4 times 683 13
I6 Innerseal / 6 times 621 30

2.
KOMSOL INTERNATIONAL | GERMANY | SPAIN | SWEDEN | NORWAY
www.komsol.eu | www.komsol.se
ADHESION TEST
Reference Acrylic (white) – Reference Epoxy (gray)
Innerseal 2, 4, 6 times. Epoxy Innerseal 2, 4, 6 times, sanded. Epoxy
Innerseal Plus 1, 2, 3 times + Epoxy Innerseal 2, 4, 6 times + Acrylic

3. ~I:'~~~T
issued by an AccreditedTesting Laboratory
Contact person Date Rererence
Erik Lindhagen 2013-01 -31 3FOOI783
SP Chemistry, Materials and Surfaces
+46 10 516 58 72 Niclas Schonfelder
Erik.Lindhagen@sp.se
Adhesion to concrete
(1 appendix)
Commission
Komsol AB
Ekonomiviigen 4
43633 ASKIM
Testing the adhesion of paint on concrete substrates.
Samples
Page
I (2)
Five concrete substrates were delivered to SP on Jan 7 2013. They were divided in zones with
different marking and painted with grey paint marked epoxy and white paint marked akrylat.
The epoxy-paint was divided in zones with the following markings;
• Nollprov ( i.e. Reference sample)
• 12
• 14
• 16
• 121
• 12 II
• 12 III
• Slip211110
• Slip 412110
• Slip 613110
The acrylic paint was divided in zones with the following markings;
• Nollprov ( i.e. Reference sample)
• 12
• 14
• 16
Preparation
.S'~ED IlC'.
>-WW O
? w ~
1tDI'£.~
1002
ISOllEe !7025
On each sample surface at least 7 steel dollies were glued with cyan acrylic glue. The glue was
allowed to harden for at least 48h prior to testing. During this time the samples were stored in a
room with constant climate of 23±2°C, 50±lO%RH.
Testing
The tests were conducted according to ISO 4624 on Jan 29 with the following exceptions.
SP Technical Research Institute of Sweden
Postal address
SP
Box 857
SU01 15 BORAs
Sweden
Office location
Vasterasen
Brinellgatan4
SE-50462 BORAs
Phone / Fax / E-mail
<46 105165000
<4633135502
info@sp.se
Laboratories are accredited by the Swedish Board for Accreditation and
Conformity Assessment (SWEDAC) under the terms of Swedishlegislation.
Thisreport may not be reproduced other than infull, except withthe prior
written approval of the issuing laboratory.

4. Date Refererce p,,,
2013-01-31 3F001783 2 (2)
Niclas Schonfelder
Out of fear to damage the paint layer there was no drilling or cutting around the dollies prior to
testing. For practical purposes no outer ring was used. This is not believed to have influenced
the measurements much.
The dollies were pulled of using a Zwick zlOO universal testing machine with a 2,5kN load-
cell. SP inventory number 301037 and 90 1319. The pull speed was 0,8MPais and a pre-load of
2N was chosen.
Results
Below the average force and coefficient of variation are presented for each zone. The complete
results can be found in appendix 1. The coefficient of variation is quite large and this is
believed to be mostly due to variations in the concrete substrates.
At large all failures for the epoxy-paint were estimated to be cohesion-failures in the substrate.
Similarly all acrylic-paint fai lures were estimated to be adhesion failures, except the reference
that was estimated to be cohesion failure in the substrate.
Epoxy Average force (N) Coefficient of variation (%)
Reference sample 1000 19
[ 2 1280 29
[4 1080 20
[6 938 23
12 I 1760 24
12 II 1520 24
12 III 1480 21
Slip 2 11/10 1290 30
Slip 4 12/10 1370 21
SliI>6 13/1 0 1460 14
Acrylic Average force (N) Coefficient of variation (%)
Reference sample 702 33
12 807 31
14 683 13
[ 6 621 30
SP Technical Research Institute of Sweden
Appendix
SP Technical Research Institute of Sweden