Categories

Surface tension measurement - Arcotest

Surface tension measurement - Arcotest

Measurement of surface tension (grease) that is related to surface cleanliness, which affects the adhesion of, for example, the coating on the substrate

Why Measure Surface Tension Energy (Fiber and Ink Arcotest)?

Surface tension is one of the decisive criteria for adhesion (adhesion) of printing ink, adhesives, paints, coatings, etc. on any plastic or metal surface.
Surface tension is measured in mN / m (milinewton per meter - current valid unit of measurement) or in dyn / cm (dyn / centimeter - old unit).

Regardless of some exceptions, the main rules are:

The higher the surface tension of the material, the better the adhesion of any of the aforementioned in the fixation to the surface.

On the one hand, the reason for the low voltage can also be given by the material specification. For example, many plastics exhibit very low surface tensions and therefore require chemical or physical treatments to achieve better adhesion.

On the other hand, surface contamination (fat, oil, fingerprints) may be due to a low surface tension, which is usually the case for metals.

As a general limit, the value of 38mN / m is often stated. If the surface tension below this value is poor, the grip will be good or satisfactory. In any case, it is always recommended to check the surface tension that is important for good adhesion for each application.

Arcotest test pens are very accurate and easy to use as surface tension testing. It serves either as a search engine for necessary treatment or surface cleaning for planned production or for quality testing on an already established production line.

Fixy a inkousty Arcotest - aplikaceAplication:

For the beginning of any testing, it is best to first use a test fix with a mean value eg 38mN / m. If the ink line stays on the surface of the material, it is unchanged for two seconds, ie. Does not change in the drops, the surface tension is equal to or higher than the surface tension of the solution (fix). In this case, we use a test fix with a higher value eg 40mN / m. This procedure is performed until the line made by the fix (ink) is poured into small separate droplets.

If drops are formed at the beginning of the measurement (at a value of 38mN / m), the test proceeds to use lower value pins. In this case, the material tension can be determined between two values, for example between 36 and 38 mN / m.

This test method is suitable for operators at any manufacturing level, such as routine testing, the result of which can be instantly illustrated and evaluated and gives a very clear picture of the level of treatment and surface cleanliness.

Because the test solutions are composed of two solutions that evaporate at different rates and which also accept moisture, the pins must always be well closed when not in use.

Arcotest - Test Inks for measuring tension energy

Fixy a inkousty Arcotest - balení

Test inks are solutions of defined surface tension available in vials of 10, 100, 250 or 1000 ml. Surface energy is simply detected by applying the test ink to the surface. The accuracy of the measurements is ± 1% mN / m. Test inks are available in the range of id 18.4 to 105 mN / m, almost in all values. In the standard range between 28 and 56 MN / m, we offer different sets containing 7 bottles of 10ml. The bottles contain a brush that is put in the lid.

  • Fast high-precision testing
  • Good readability also on rough and dark substrates
  • If you use a pipette or a cotton stick for the application, there is no dirt
  • A wide range of different and special surface tensions are available on request

Arcotest - Test Pens for measuring tension energy

Fixy a inkousty Arcotest

The test pens contain an ink that defines the surface tension. The surface tension of the material to be tested is determined very simply by the application of the fixation by pulling the felt tip over the substrate. The measurement accuracy is ± 1% mN / m.

The test pins are available in a set of 8 fixes ranging from 30 to 44mN / m.

Upon request, also with a higher or lower value.

  • Fast high-precision testing
  • Can not spill
  • Extremely easy to use
  • Minimum consumption of the test solution
  • Long-term storage conditions if the lid is tightly closed

Arcotest - Test Pens Quickest 38 

Quicktest 38 are used if we only want to determine if the surface has a voltage of 38mN / m or not. If we make a line fix and the full line remains, the surface tension is 38mN / m or more. If the surface tension is below 38mN / m, the line made by the fix will be poured into small droplets. The solution applied to the surface is dried within seconds, so it is not necessary to wipe it.

  • Extremely easy to use
  • Perfect for use in testing polyolefins
  • No need to wipe with a cloth, a permanent representation of the result
  • Good readability thanks to the striking red color


!!! Note:
Quicktest38 fixation solution contains solvents. This may cause poor results on non-solvent-resistant materials or surfaces.

Rozdíl mezi modrým (toxickým) a růžovým (netoxickým) inkoustem  (Arcotest)

The difference between blue (toxic) and pink (non-toxic) ink (Arcotest)

The total surface tension (SFT) consists of two parts: the polar part and the dispersion part.

Each fluid has these two portions of polar and dispersion, and also the surface tension has these two parts. Test inks with a voltage of, for example, 36 mN / m can be mixed from various solutions, e.g. methanol with water or ethylene glycol with formamide. Each ink has its own polar and dispersion part, showing different behavior on plastic materials.

So you may have different results with different inks (blue, pink) of the same values ​​on the same surface.

Toxic (blue) inks are standardized in ISO, but some people prefer to order our non-toxic (pink) inks we also offer. But then it is possible that you may have a slightly different result especially on plastics.

We can send you a list of ink values ​​for proper adhesion to different surfaces, but it also depends on the roughness of the substrate, the material properties, and many other factors. If you write to us what kind of material you want to test, we can help you somewhat according to the experience we have gained.

Information about Test Pink Ink

- available at 30 - 60mN / m

  • Pink inks have begun to develop on the basis of customer requirements for non-toxic inks: 45 to 60mN / m accurate to ± 0.5mN / m
  • Test ink 30 - 44mN / m is brighter (observation time is 4 seconds) Test ink 45 - 50mN / m is darker (/ observation time is 2 seconds)
  • Differences are also clearly visible on the color printed on the label
  • Ink 30 - 44mN / m is marked as Xi / Xn - Safety Data Sheet
  • Ink 45 - 50mN / m is not marked - according to the Safety Data Sheet
  • These test inks can also be used as a replacement for blue inks if non-toxic inks are required.

However, these inks do not conform to any DIN / ISO standard as toxic ink.
Although they can be used for the same applications as those in DIN 53364 and ISO 8296. But it is true that it depends on the surface being tested. According to DIN 53364 and ISO 8296 this test surface can be small deviations from toxic fixes. This is due to the fact that the proportions of polar and dispersion components are different from those of blue toxic ink and therefore the result depends on the interaction of the test plastic.

The difference between the Quicktest fix with a value of about 38mN / m and a pink fixed value of 38mN / m

Fix Quicktest (red top) is only suitable for general control of the polyolefin. The test fix is ​​about 38 mN / m. If the fixation leaves a small droplet on the surface, the user knows that the surface has not been adequately treated. The test fix 38mN / m (white top) contains a fluid with a defined surface tension (38mN / m ± 1). It is necessary to have detailed information about the surface tension, if we do not have a better use of a white top.

Testing of metal surfaces with Arcotest test inks

Surface testing of solid materials is possible if the ink is in accordance with DIN 53364 or other compositions. Also, the degree of activation of polymeric plastics can be determined if required for example by printing or coating applications. Purity can also be determined on metals, for example, when the contaminated surface after milling shows a surface tension between 30 and 32 mN / m. On the cleaned surface, the surface tension will be from 35 to 40 mN / m.

Annealed scraped metal strips may exhibit a significantly higher surface tension.

The higher the value of fixation does not spread on the surface, the cleaner the surface. The surface tension value indicates the value of the fix or ink that stays in a 20 mm long line for 2 seconds, and this line does not bubble or resist. Inks are used from the highest to the lowest.

If the solvent-containing inks dissolve the dirt, for example, the oil film layer, then the surface value is shown as in reality. Then the ink should be used with reservations.

If you are using ink in bottles to test, it is recommended to use a single-use cup. Using a brush and returning it to the bottle may cause contamination of the solution and a large change in ink may be necessary. It is also recommended to perform a surface test that has ambient temperature.

If a fix is ​​used, there is a risk of abrasion of the felt tip of the fix with contaminated surface particles. Therefore, pens should not be used only when compared to inks in bottles where contamination is lower.

Metal surfaces may be flame-cleansed or "Dodon" treated. Here it is necessary to decide whether to clean the surface first with water or solvent-based or brush-based systems. Then, a value over water tolerance (72mN / m) can be obtained. If it is still required over time, surface tension decay can be verified.

Storage conditions of Arcotest fixtures

When we handle it correctly, we guarantee the storage life of fixes and inks for 6 months. This applies to inks ranging from 28 to 105 mN / m.

For inks of 18.4 to 26 mN / m, we guarantee a storage life of 3 months. Storage life is affected by the use of fixes and inks and the way they are stored.

Correct storage of ARCOTEST fixtures and inks means:

  • Store at constant room temperature from 20 to 25 ° C
  • Prevent exposure to direct sunlight
  • Keep the container tightly closed
  • Avoid contamination during use (dust and dirt

Irregularities +/- 1mN / m are standard. Test ink is packed with test fixes or is supplied in 10ml, 100ml, 250ml, and 1000ml bottles.

Test inks are generally used to demonstrate wettability, which results in the adhesion of the surface. However, this wettability and adhesion relationship may sometimes be considered uncertain. Different types of materials.

Surface tension values ​​of solids

Here you will find a list of selected substances and their surface tension values.
To find out more about the specific substance, please use the online search engine and enter its CAS value listed in the table below:

Database: http://webbook.nist.gov/chemistry/cas-ser.html

SubstanceSurface Tension(mN/m)CAS
ABS 41,90 -
alumina (aluminium-oxide Al2O3) 31,00  1344-28-1
alumina (aluminium-oxide AI2O3) 38,66 1344-28-1
alumina (aluminium-oxide AI2O3) 40,09 1344-28-1
alumina (aluminium-oxide AI2O3) 48,19 1344-28-1
alumina (aluminium-oxide AI2O3) 50,50 1344-28-1
Hliník 33,00 7429-90-5
Hliník 35,00 7429-90-5
bariumsulfate (barytes) BaSO4 26,70 7727-43-7
bariumsulfate (barytes) BaSO4 43,40 7727-43-7
beta-copperphthalocyanin 33,00 147-14-8
calciumcarbonate CaCO3 25,10 471-34-1
calciumcarbonate CaCO3 33,10 471-34-1
carbon 34,80 7440-44-0
carbon-black 37,00 133-86-4
carbon-black 40,00 133-86-4
chromium-nitride (CrN) 38,00 12053-27-9
clay 31,30 1318-74-7
clay 45,67 1318-74-7
clay 51,71 1318-74-7
clay 55,50 1318-74-7
clay 60,60 1318-74-7
clay 60,70 1318-74-7
clay 62,00 1318-74-7
clay 65,80 1318-74-7
clay 66,00 1318-74-7
FEP (flourinated ethylene propylene copolymer) 18,70 25067-11-2
FEP (flourinated ethylene propylene copolymer) 19,00 25067-11-2
germanium 55,00 7440-56-4
Sklo 43,10 n.a.
Sklo 65,00 n.a.
Sklo 66,50 n.a.
Sklo 68,00 n.a.
Sklo 69,50 n.a.
Sklo 70,30 n.a.
Sklo 73,00 n.a.
Sklo 73,30 n.a.
Sklo 112,90 n.a.
hafnium-carbide (HfC) 36,00 11129-37-6
hafnium-carbide (HfC) 39,00 11129-37-6
hafnium-nitride (HfN) 39,00 25817-87-2
hexatriacontan 21,00 630-06-8
HPMC (hydroxypropylmethylcellulose) 41,60 9004-65-3
HPMC (hydroxypropylmethylcellulose) 45,70 9004-65-3
HPMC (hydroxypropylmethylcellulose) 58,40 9004-65-3
iron-oxide 28,00 1309-37-1
iron-oxide 32,90 1309-37-1
lactose 55,30 5965-66-2
lactose 57,20 5965-66-2
lactose 69,40 5965-66-2
magnesium oxide 46,98 1309-48-4
magnesium oxide 46,99 1309-48-4
magnesium oxide 47,01 1309-48-4
magnesium oxide 47,04 1309-48-4
mica 36,10 12001-26-2
mica 45,70 12001-26-2
mica 67,10 12001-26-2
mica 120,00 12001-26-2
monoazo-red 47,00 5280-66-0
monoazo-yellow 37,00 6528-34-3
n-hexatriacontane 18,74 762-42-5
n-octadecyl-amine 23,01 124-30-1
NR (natural rubber) 18,00 9003-31-0
omega-monohydro-perflouro-undecanoic-acid 18,73 1765-48-6
PA 6 (polycaprolactam) 38,00 25038-54-4
paraffin 19,00 8002-74-2
paraffin 23,66 8002-74-2
paraffin 25,09 8002-74-2
paraffin 25,10 8002-74-2
paraffin 25,50 8002-74-2
PBT (polybutylene terephthalate) 45,00 25971-63-5
PC (polycarbonate) 29,00 25971-63-5
PC (polycarbonate) 32,60 25971-63-5
PC (polycarbonate) 38,80 25971-63-5
PDMS (polydimethylsiloxane) 22,10 63148-62-9
PE (polyethylene) 27,00 9002-88-4
PE (polyethylene) 31,80 9002-88-4
PE (polyethylene) 32,10 9002-88-4
PE (polyethylene) 32,39 9002-88-4
PE (polyethylene) 32,82 9002-88-4
PE (polyethylene) 33,00 9002-88-4
PE (polyethylene) 33,10 9002-88-4
PE (polyethylene) 33,20 9002-88-4
PE (polyethylene) 35,00 9002-88-4
PE (polyethylene) 35,10 9002-88-4
PE (polyethylene) 36,00 9002-88-4
PE (polyethylene) 36,30 9002-88-4
pentoxyfilline 56,20 6.5.6493
pentoxyfilline 68,50 6.5.6493
pentoxyfilline 77,10 6.5.6493
PET (polyethyleneterephthalat) 37,40 25038-59-9
PET (polyethyleneterephthalat) 39,48 25038-59-9
PET (polyethyleneterephthalat) 39,50 25038-59-9
PET (polyethyleneterephthalat) 40,90 25038-59-9
PET (polyethyleneterephthalat) 41,30 25038-59-9
PET (polyethyleneterephthalat) 42,20 25038-59-9
PET (polyethyleneterephthalat) 42,35 25038-59-9
PET (polyethyleneterephthalat) 44,00 25038-59-9
PET (polyethyleneterephthalat) 46,50 25938-59-9
PMMA (polyethylmethacrylate) 38,70 9003-42-3
PMMA (polyethylmethacrylate) 39,00 9003-42-3
PMMA (polyethylmethacrylate) 39,70 9003-42-3
PMMA (polyethylmethacrylate) 41,20 9003-42-3
PMMA (polyethylmethycrylate) 41,40 9003-42-3
PMMA (polyethylmethacrylate) 43,80 9003-42-3
PMMA (polyethylmethycrylate) 44,60 9003-42-3
PMMA (polyethylmethacrylate) 44,90 9003-42-3
PMMA (polyethylmethacrylate) 45,80 9003-42-3
polychloroprene 43,50 9010-98-4
polychlorotrifluoroethylene 26,93 9002-83-9
polychlorotrifluoroethylene 29,80 9002-83-9
polychlorotrifluoroethylene 31,00 9002-83-9
polyvinylidene-chloride 40,00 9002-85-1
polyvinylidene-chloride 41,34 9002-85-1
PP (polypropylene) 28,00 9003-07-0
PP (polypropylene) 29,40 9003-07-0
PP (polypropylene) 29,70 9003-07-0
PP (polypropylee) 30,70 9003-07-0
PP (polypropylene) 31,20 9003-07-0
PP (polypropylen) 31,80 9003-07-0
PP (polypropylene) 32,10 9003-07-0
PP (polypropylene) 34,10 9003-07-0
PS (polystyrene) 29,20 9003-53-6
PS (polystyrene) 38,00 9003-53-6
PS (polystyrene) 39,00 9003-53-6
PS (polystyrene) 40,57 9003-53-6
PS (polystyrene) 40,80 9003-53-6
PS (polystyrene) 41,90 9003-53-6
PS (polystyrene) 42,00 9003-53-6
PS (polystyrene) 42,80 9003-53-6
PTFCE (polytrifluorochloroethylene) 28,30 9002-83-9
PTFE (polytetrafluoroethylene) 15,56 9002-84-0
PTFE (polytetrafluoroethylene) 16,60 9002-84-0
PTFE (polytetrafluoroethylene) 18,50 9002-84-0
PTFE (polytetrafluoroethylene) 19,00 9002-84-0
PTFE (polytetrafluoroethylene) 19,10 9002-84-0
PTFE (polytetrafluoroethylene) 20,00 9002-84-0
PTFE (polytetrafluoroethylene) 20,70 9002-84-0
PTFE (polytetrafluoroethylene) 21,77 9002-84-0
PVA (polyvinylalcohol) 37,00 9002-89-5
PVA (polyvinylalcohol) 38,80 9002-89-5
PVAc (polyvinylacetate) 36,50 9003-20-7
PVAc (polyvinylacetate) 41,00 9003-20-7
PVC (polyvinylchloride) 27,00 9002-86-2
PVC (polyvinylchloride) 33,00 9002-86-2
PVC (polyvinylchloride) 33,10 9002-86-2
PVC (polyvinylchloride) 36,70 9002-86-2
PVC (polyvinylchloride) 38,10 9002-86-2
PVC (polyvinylchloride) 39,50 9002-86-2
PVC (polyvinylchloride) 39,62 9002-86-2
PVC (polyvinylchloride) 40,00 9002-86-2
PVC (polyvinylchloride) 41,50 9002-86-2
PVC (polyvinylchloride) 42,90 9002-86-2
PVC (polyvinylchloride) 44,10 9002-86-2
PVDF (polyvinylidenefluoride) 25,00 24937-79-9
PVDF (polyvinylidenefluoride) 32,10 24937-79-9
PVDF (polyvinylidenefluoride) 32,28 24937-79-9
PVDF (polyvinylidenefluoride) 32,70 24937-79-9
PVP (polyvinylpyrrolidone) 44,30 9003-39-8
PVP (polyvinylpyrrolidone) 44,60 9003-39-8
PVP (polyvinylpyrrolidone) 50,40 9003-39-8
stearic acid 21,80 57-11-4
ocel 29,00 7439-89-6
ocel 34,40 7439-89-6
ocel 35,00 7439-89-6
ocel 43,00 7439-89-6
ocel 43,80 7439-89-6
ocel 44,50 7439-89-6
ocel 45,00 7439-89-6
ocel 46,30 7439-89-6
ocel 50,50 7439-89-6
ocel 53,90 7439-89-6
ocel 56,00 7439-89-6
talc 42,90 14807-96-6
talc 48,00 14807-96-6
Cín 41,00 7440-31-5
Cín 67,40 7440-31-5
Titan 46,50 7440-32-6
titanium-dioxide 27,70 13463-67-7
titanium-dioxide 35,60 13463-67-7
titanium-dioxide 35,90 13463-67-7
titanium-dioxide 39,90 13463-67-7
titanium-dioxide 40,70 13463-67-7
titanium-dioxide 41,10 13463-67-7
titanium-dioxide 42,90 13463-67-7
titanium-nitride (TiN) 43,00 25583-20-4
tungsten-carbide (WC) 46,30 12070-12-1
zircona (zirconium-oxide ZrO2) 42,04 1314-23-4
zircona (zirconium-oxide ZrO2) 42,54 1314-23-4
zircona (zirconium-oxide ZrO2) 42,61 1314-23-4
zircona (zirconium-oxide ZrO2) 42,75 1314-23-4
zirconium-carbide (ZrC) 35,00 12070-14-3
zirconium-carbide (ZrC) 37,00 12070-14-3
zirconium-nitride (ZrN) 40,00 25658-42-8

                 
Fluid surface tension values

Here you will find a list of selected substances and their surface tension values.
To find out more about the specific substance, please use the online search engine and enter its CAS value as shown in the table: Database address: http://webbook.nist.gov/chemistry/cas-ser.html

Substances Surface Tension(mN/m) Číslo CAS
1,2-dichloroethane 33,30 1300-21-6
1,4-dioxane 33,00 123-91-1
1,5-pentanediol 43,30 111-29-5
1-chloro-butane 23,10 109-69-3
1-decanol 28,50 112-30-1
1-nitro-propane 29,40 108-03-2
1-octanol 27,60 111-87-5
alpha-bromo-naphthalene 44,40 90-11-9
aniline 43,40 62-53-3
anthranilic-acid-ethylester 39,30 87-25-2
benzene 28,40 71-43-2
benzene 28,88 71-43-2
benzyl alcohol 38,90 100-51-6
benzyl alcohol 39,00 100-51-6
benzyl alcohol 40,00 100-51-6
chloroform 27,50 67-66-3
cyclopentanol 32,70 96-41-3
decalin cis-trans-mixture 30,60 91-17-8
decalin cis-trans-mixture 31,50 91-17-8
dichloro-methane 28,60 75-09-2
diiodo-methane 50,00 75-11-6
diiodo-methane 50,80 75-11-6
dimethyl-formamide 36,50 68-12-2
dimethyl-formamide 37,10 68-12-2
dimethyl-siloxane 19,00 n.a.
dimethyl-sulfoxide (DMSO) 42,90 67-67-5
ethanol 22,10 64-17-5
ethylene glycol 47,50 107-21-1
ethylene glycol 47,70 107-21-1
ethylene glycol 48,00 107-21-1
ethylene glycol 48,20 107-21-1
ethylene glycol 64,50 107-21-1
formamide 56,90 75-12-7
formamide 58,00 75-12-7
formamide 58,20 75-12-7
formamide 58,30 75-12-7
formamide 58,40 75-12-7
formamide 59,00 75-12-7
fumaric-acid-diethylester 31,40 n.a.
glycerol 62,70 56-81-5
glycerol 63,30 56-81-5
glycerol 63,40 56-81-5
glycerol 64,00 56-81-5
glycerol 64,50 56-81-5
glycerol 65,20 56-81-5
hexadecane 27,60 544-76-3
melamin resin 58,43 n.a.
mercury 484,00 7439-97-6
methyl-naphtalene 38,60 90-12-0 (1-)
mixture ethylenglycol:water 10:90wt% 69,36 mixture
mixture ethylenglycol:water 20:80wt% 64,27 mixture
mixture ethylenglycol:water 30:70wt% 61,59 mixture
mixture ethylenglycol:water 40:60wt% 60,29 mixture
mixture ethylenglycol:water 50:50wt% 57,89 mixture
mixture ethylenglycol:water 60:40wt% 55,86 mixture
mixture ethylenglycol:water 70:30wt% 53,36 mixture
mixture ethylenglycol:water 80:20wt% 52,18 mixture
mixture ethylenglycol:water 90:10wt% 50,46 mixture
n-decane 23,40 124-18-5
n-decane 23,80 124-18-5
n-decane 23,90 124-18-5
n-dodecane 25,40 112-40-3
n-dodecane 25,80 112-40-3
n-hexadecane 27,10 544-76-3
n-hexadecane 27,60 544-76-3
n-hexane 18,40 110-54-3
nitro-ethane 31,90 79-24-3
nitro-methane 36,80 75-52-5
n-octane 21,30 111-65-9
n-tetradecane 26,60 629-59-4
PA 6.6 (polyamide 6.6 polyhexamethyleneadipamide) 45,90 n.a.
PCP (polychronoprene, poly(2-chloro-1,3-butadiene) 33,20 9010-98-4
PDMS (polydimethylsiloxane) 14,10 63148-62-9
PDMS (polydimethylsiloxane) 19,00 63148-62-9
phthalic-acid-diethylester 37,00 84-66-2
PiBMA (poly-i-butylmethacrylate) 23,70 n.a.
PMMA (polyethylmethacrylate) 32,00 9003-42-3
PnBMA (poly-n-butylmethacrylate) 24,10 9003-63-8
PS (polystyrene) 32,10 9003-53-6
PtBMA (poly-t-butylmethacrylate) 23,30 n.a.
PTHF (polytetrahydrofuran) 24,60 27637-03-2
PVAc (polyvinylacetate) 28,60 9003-20-7
sym-tetrabromo-ethane 49,70 79-27-6
sym-tetrachloro-ethane 36,30 79-34-5
tetrachloro-methane 27,00 56-23-5
thiodiglycol 53,00 111-48-8
toluene 28,40 108-88-3
tribromomethane (bromoform) 41,40 75-25-2
tribromomethane (bromoform) 41,50 75-25-2
trichloro-biphenyl 45,30 25323-68-6
tricresyl-phosphate 40,90 1330-78-5
water 72,10 7732-18-5
water 72,30 7732-18-5
water 72,75 7732-18-5
water 72,80 7732-18-5

2 Comments

    • Avatar
      Lorena
      Aug 23, 2019

      Hi, We need to buy something to do an ink test. The problem is that we are not experts in this kind of tests and we don't know what kind of product we need to buy for the follow requirement (it is specified on the customer drawing) **Check for esidue on the part with ink test 36mN/m** And the type of material is **6,0X0.5 EN10151 1,4310 C1150** (stainless steel) Thanks in advance Lorena

    • Avatar
      Pavel Lemberk
      Nov 13, 2019

      Dobrý den, chtěl bych se Vás dotázat, jakým způsobem je možné testovat povrchové napětí plastu, jejichž povrch není hladký ale drsný. Například po opískování formy. Na drsném povrchu není možno dosáhnout celistvé čáry ( bez přerušování /rozplývání). Testoval jsem zatím jen za pomocí tinktury a "ochošťouru". Doporučil by jste mi pro tento povrch jiný měřidlo - např. fix ? Předem moc děkuji za radu, S pozdravem Pavel Lemberk - specialista kvality, Fa. Grupo Antolin

Leave your reply

*
**Not Published
*Site url with http://
*
Product successfully added to the product comparison!