Operating methods, common values, and addition amounts of aluminum silver paste

The operation methods, common values, and addition amounts of aluminum silver paste are specifically introduced as follows: 

I. Correct Operation Methods

1. First, soak the aluminum silver paste in a solvent (the ratio is approximately 2:1 or 1:1) for usually 1-2 hours. After soaking, use a dispersing tool to fully disperse it.

2. For some aluminum silver pastes with finer particle sizes, soaking and dispersing can be more difficult. A small amount of strong solvent such as cyclohexanone can be added to the conventional solvent.

II. Common Value Units

ΔE: Total color difference (used to determine whether the product is qualified).

ΔL: L in the colorimeter represents lightness (black and white). If ΔL is positive, it indicates the sample is brighter than the standard plate; if negative, it indicates it is darker.

Δa: a in the colorimeter represents red-green. If Δa is positive, it indicates the sample is redder than the standard; if negative, it indicates it is greener.

Δb: b in the colorimeter represents yellow-blue. If Δb is positive, it indicates the sample is yellower than the standard; if negative, it indicates it is bluer.

Floating Value: The proportion of aluminum silver paste floating on the top of the liquid to the total added amount.

Acid Value: The number of milligrams of organic acid contained per gram of carrier.

Settling Rate: The time it takes for aluminum silver paste to sink to the bottom of the liquid in coatings or inks.

Glossiness: The degree to which the surface of an object resembles a mirror, expressed numerically. After the film-forming material dries, the surface is tested with a gloss meter, and the higher the number, the higher the gloss (gloss is mainly determined by the resin, but the addition amount and shape of the aluminum silver paste also affect gloss).

III. Addition Amount

1. Used Alone: Aluminum silver paste can be used alone as a color filler, which can change the surface effect of the material being applied and also achieve functional effects such as corrosion resistance, light blocking, and reflection.

2. Mixed Use: Aluminum silver paste can also be mixed with pearlescent, pigment paste, or color masterbatches to achieve a more colorful and dazzling effect. Note: Generally, when using floating silver, no pigment paste or other pigments are added.

3. The addition amount of aluminum silver paste is determined according to actual construction requirements and cannot be generalized. For example, when used alone as a color filler, the addition amount is generally between 8%-10%; when mixed with other pigments, the addition amount can be 1%-10%. The addition amount can also be determined according to opacity and critical powder fall.

The above is the introduction to the operation methods, common values, and addition amounts of aluminum silver paste. Thank you for reading.