Welcome to Spektrochem Paint Raw Materials Technical Center YT channel! ...in the house of architectural paints and their raw materials.
The official YT channel will take you into the world of a professional paint formulations and testing service in the field of water-borne architectural paints.
Spektrochem Paint Technical Center is a research laboratory focused on the development of raw materials for architectural paints, especially water-borne latex paints in terms of the evaluation of conventional and bio-resources raw materials in terms of their effectiveness in various PVC ranges, compatibility, dosing efficiency and optimization in formulations dedicated to markets all over the world.
Hello, I have a question please. This material you use for soaking the liquid in and placing on the sample is somehow standardized? I did not find any direct instructions In the standard ISO 2812. Thank you
In ISO 2812-3, you have 25 or 36 mm filter paper discs specified in section 4.4, with the note 1 that discs with a thickness of 1.0 to 1.25 mm are best. This is the absorbent material you see in the video. If you would like to purchase such filters ready for such a test, please contact us because we offer them.
Can you please explain how to run ASTM D3723-22, Standard Test Method for Pigment Content of Water-Emulsion Paints by Low-Temperature Ashing? I’m in need of help. Thank you!
Thank you for your comment. The video is not intended to allow you to understand how to perform the test, but to show that we perform it in our lab. To understand the procedure, you must familiarize yourself with the ASTM D2697 test method and gain experience in performing this test in practice. If you need consultation or training, we offer it.
Let me ask one question. If the required range is 5mpa. Dolly has removed from the substrate on 6mpa, but it shows cohesive failure. Can we accept because it has removed from 6mpa.
It all depends on whether you accept cohesive failure at this value. In general, yes, if the result is 6 MPa / 870 psi and you have a minimum adhesion of 5 MPa / 725 psi in the specification, then the requirement is met.
Hi, thanks for the interesting video. I have a question i was hoping you could answer, if i wanted to make an acrylic paint much more matte / flat & thicker, like chalk paint or gesso, could i just add some chalk / marble powder to it? Thank you in advance 🙏
Adding chalk/calcium carboinate or talc filler will cause flattening, but the question is whether this is the only effect you care about. Please keep in mind that increasing the share of fillers in the formulation disturbs the PVC (Pigment Volume Concentration) and the ratio (pigments + fillers): binder, which affects not only the gloss, but also scrubbability, porosity and many other parameters such as durability. Following the addition of fillers for flattening purposes, you must also consider modifying the dosage of the dispersing agent. Other ways to reduce the gloss are to use additives, such as matting waxes, depending on whether you want to achieve flattening in the gloss at 60° or sheen at 85° range. If you would like to consult us for advice on formulations and raw materials, please contact us by email.
This is very useful information. I would like to ask a question: Which standard contains information about the minimum required paint resistance for pre-painted steel with a thickness between 0.300 mm and 0.600 mm?"
@@lacucinachimica Of course, please contact our expert Dr Artur Palasz www.linkedin.com/in/arturpalasz/ or send us an e-mail customerservice@spektrochem.pl to transfer your correspondence
We do not sell testing equipment, but we can offer you technical support and consultations to select the right grindometer and help interpret the results and implement the ASTM standard for performing the fineness of grind test.
Incorrect, the one on the left has the tin side labeled opposite. The tin surface is in contact with the shortwave UV light, thus having the tin particles scatter the UV light, and the surface labeled "Tin Side" is actually the air side. Of course, opposite for the right hand sample.
The whiter surface is the tin side, just like in the video. This is about the surface that is in contact with the lamp (from the bottom of the glass panel). As ASTM D3891 specifies: the air side will appear clear, and the tin side will appear frosted. There is no mistake in the video. You may have interpreted that it was the top side of glass panel, but the video clearly shows that the tin side and air side are from the side of the UV lamp.
@@SpektrochemResearchLaboratory The labels are on the incorrect surface for which they identify. It's like you didn't read my comment. The label for "Tin side" is adhered to the "air side" of the glass.
When I first joined ICI Paints Division (Slough, UK) in Sept.1980 (I was 16 years old), I had worked under Professor Striven an expert in Rheology who lead their Physics Dept. . By the mid 1980's I was working in Heavy Duty Coatings and using an earlier model of the ASTM D4287 (all springs and clockworks) on a daily basis It was a test that was done in tandem with a Low Sheer viscosity test to measure if the paint sample over time (periodic testing over a year of samples,some kept in a hot room or a fridge) was maintaining its thixotropic integrity . ICI Dulux had made it a point to market its "Non-Drip" paints . High Sheer, to test if the paint will load on the brush and spread smoothly on the surface being painted . Low Sheer, to test if the paint will remain viscous to stay on the brush and not drip on the floor. . I had a checked life: Policeman, Naval Officer and Derivative Specialist for Private Banks in Switzerland. I almost forgot the 8 years I spent with ICI I attained my first professional qualifications (I had left school without any qualifications) . I have a HNC in Paint Technology thanks to ICI. . I later went on to graduate from 3 different universities in chemistry and business and all I can recall from my HNC is that paint is wet. . I must say I came across this video by chance and it brought back delightful memories. . Question Did Prof. Striven develop this ATSM apparatus? Though ASTM D4287 -... 87 being the year it was assigned its ASTM categorisation, the apparatus was in common use years before, known to me as the Viscosity Machine 2nd on the right by the fire exit
Depending on what tests you want to perform later after exposure. If only fading/chalking/color is assessed, aluminum Q-Panels are sufficient. If you want to test the entire coating system with a primer or evaluate, for example, the adhesion of architectural paints to the substrate, concrete panels will be a better option.
There are many liquid thickeners for latex paints. Starting from all PU thickeners (HEUR), through acrylic thickeners (HASE, ASE), to some that must be added in the form of suspensions and pre-gels prepared from powders.
I did my paint production but I always face one problem ,the paint doesn't stick easily for it requires over 3 to 4 coats on application,what could be the problem Mr chemist? Thanks and hoping to hear from you sir🙏
This is nothing special related to the test. An ordinary anti-slip pad for a cell phone, so that the grindometer does not slide on the table, which is quite slippery ;)
You need to establish a balance between PVC and fillers responsible for sheen (silica, kaolin) if you are talking about sheen as gloss @85°, because remember that in the definition gloss is @60° and sheen is @85°.
Q1. Paints reflectance and emittance are dependant or independent of substrates Q2. Kindly suggest applicator for suitable thickness... Q3. How to conduct Emissivity test and UV -VIS-NIR test for paint samples
hi I work for a family owned coating manufacturing business. where would I get the cheapest and most repairable lab equipment to accurately measure this out or the lab equipment used in this video?
Cheap and reliable is a fine line and balancing on the edge of risk. Would you believe the results of tests done cheaply on unreputable equipment? Probably not. That's why we only use traceable, world-class equipment from proven suppliers
@@SpektrochemResearchLaboratory sounds unaffordable. But no, I just need anything that gets me 1-2% margin of error on volume solids. I don't need top of the line machinery that's .0000000001% margin of error you get me?
@@zsurvivalist7996 The ASTM D2697 standard indicates all the limits of precision, repeatability, reproducibility, etc. An analytical balance does not have to be very expensive, but it must be calibrated and checked regularly, your laboratory conditions must be monitored and meet temperature and humidity requirements if you want to maintain the reliability of your measurements. In addition, proficiency in performing tests, which means that if you want to perform such tests, you must ensure appropriate standards. The precision of the ASTM D2697 method is just that, providing 1-2% volume solids. I don't know why you think it's 0.0000001% here?
@@SpektrochemResearchLaboratory well that was an exageration and sort of a joke. I'm just some idiot in over my head trying to learn things so i can test our products more precisely since I don't believe I've been taught correctly how to do things where I'm at.
@@zsurvivalist7996 I don't think you're an idiot... I think you deserve recognition because you're trying to find how to do something right and you want to learn... Start with a 0.001 analytical scale with ASTM D2697 volumetric weighing attachment and compare your results to some known value of volume solids
PVC is not a binder, but a Pigment Volume Concentration. Perhaps you meant polyvinyl acetate copolymers (with ethylene, VeoVa, versatic esters, acrylic monomers, etc.)... It is impossible to give one answer here. All of them are suitable, it all depends on the other parameters you want to achieve.
@@SpektrochemResearchLaboratory OK. I understood... but I have a question, with my difference L, what am I evaluating or what information does it give me?
What you wrote is not entirely true. Most high-quality acrylic dispersions today are resistant to high shear forces, however, during let down, the anchor mixer used in the video does not cause shear because it involves using a dispersing disc, which causes potential shear. High shaft speeds when using an anchor mixer do not cause a problem here. So everything is fine. A bigger problem is the frequent addition of polymer dispersions to mill-base, which causes disturbances in the surfactants present in the dispersion and their coagulation, therefore polymer dispersions must not be added to mill-base, only mill-base to polymer dispersions.
CPVC is determined by the method of determining porosity and water vapor permeability, however, for the purposes of creating formulations, CPVC calculations are sufficient and determine the area in which CPVC occurs.
