How to Read Automotive Paint Mixing Cups.Paint cups are used primarily in the automotive painting industry to achieve the correct mixtures of paint prior to application.Paint is never applied straight. It is first mixed with an activator solution and occasionally a third component like a paint thinner or reducer.Since paint manufacturers provide exact ratios for each of these products, the math can get tricky.That is why most people use mixing cups, which have all of the ratios written on the side, just like a measuring cup.Measuring cups are used for mixing paintwork and preparatory materials: clearcoats, paints, fillers, etc. with hardeners and reducers in the most common proportions, for example, 2: 1, 3: 1 and 4: 1. and etc.Choose the desired sector, there is a distinction of 1: 1, 2: 1.The mixing technology is simple: first pour the paint to the specified mark, to the next mark in the same scale of hardener and then the reducer.Of course, first read all the necessary information on the ink package, on the method of its preparation, on the order in which it is applied and on the desired proportion.Here, also read: Technology mixing and application of paint.TABLEWARE It is important that the container in which we mix is strictly cylindrical (flat bottom and vertical walls).Only in such a container can one mix... Read more
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Very often in the summer our customers ask why they, after painting a clear coat, get a "Dry" spray and a rough, unevenly painted surface.
- Excessively volatile or inappropriate reducer or thinner, low humidity and high ambient temperature air.
- Flowability too clear.
- Air pressure too high.
- Too thin layer of paint film.
- Spray distance too far.
- Poorly prepared primer coating.
Ways of elimination:
If possible, polish the surface of the part. If the defect is too strong, repaint the part with paint, or cover the clear coat.
I used DA polisher to buff out my 5 year old genesis coupe. The car had moderate swirl marks. I used GG's 6 inch polisher with hex orange pad with ultimate compound and then light blue polish pad with CG v38. In sun, the car showed some new buffer trails (holograms). I wanted to know what can I use to remove those marks? Preferably a one step solution (excluding wax) as I already two steps on the whole car and doing it again will be inconvenient.
Tell me please, I use the painting in a hobby, I degrease the model, then I use a primer, I do not use my hands, only wearing gloves, and when painting with aerosol paints there are craters / bubbles. I do not know what to do, I tried different ways, I tried different colors, BUT, I do not what does not help. I have to take the model and work with sandpaper on these craters, and again spend a ton of time for painting. Chris, Calgary.
Dear Chris. This is a fairly common problem when painting.
Craters during painting or so-called "fish eyes" are small funnel-shaped holes on the paint layer that are formed
during the painting process of the car by spraying or immediately after its completion.
The appearance of craters is caused by silicone particles. Silicone contains many modern waxes, paraffin and polishing compounds. It firmly adheres to the surface of the paintwork and requires additional measures to be removed using alcohol mixtures.
Craters appear for the following reasons:
- Insufficient cleaning of the surface and poorly prepared preparation for painting.
- Contaminated surfaces are washed with soap and detergents.
It is necessary to take measures to remove traces of silicone from the surface with the help of fat and wax.
Pollution can also occur when preparing the surface for painting: from sand dust, pile used rags, automotive polishing paste.
Even if applied for a short time, these substances can cause surface contamination, which in turn will lead to the appearance of craters.
Oil in the air line of the spray gun.
The use of silicone containing additives that prevent the formation of craters is not recommended.
These additives may contaminate the workplace, which, if done in other jobs, may result in loss of adhesion.
Ways of elimination:
Smooth out the defective surfaces and apply a new coat of paint.
We recommend you to use Silicone Remover.