You can check and determine quality of gold mosaics compete from the following aspects.

 

1. Have surface pitting foil, water points or oil spots

Because the paste products, is a high-end decoration materials, natural should not appear obvious pitting, water points or oil spots like foreign body. Such problems because the big competition in the market now, the oil for domestic dictates. I have always been patriotic, but for domestic materials, has always been conservative views. Blame, Sorrow also.

 

2. The base oil (that is often said protective lacquer) to bright

Good quality protective paint, feels the texture is very good, very bright, smooth, showing a high gloss. Only such a primer, acid and alkali resistance go, hardness was acceptable. The matte, loose structure, feels rough it at the end, the inevitable short shelf life.

 

3. Do not expose the background (that is often said Lu foil)

This depends on the quality and level of gilding the foil. Same reason as the first point.

 

4. Pull off the mesh is not a piece bottom

This point is crucial. Determining the quality of gold mosaics, coming from a mosaic of grain posted good grid pull down, if the foil off the bottom into a film, it proved to be defective. And use it there will be troubles. It should be noted that: a primer large loss. If the position along the lines of, very minor paint off the point, no further foil-bit, or qualified. Because from the stress analysis shows: At this force is concentrated on the grid line, so when you pull the net with mesh particle separation considerable force.

 

5. Resistance to boiling test

The shot put gold 80 - 100 degrees boiling water, seal, discoloration was observed after 72 hours. Do not change color as qualified, discoloration is defective. It indicates that the product is not heat-resistant and water.

 

6. Are there four sides of glass paint and other dirt.

Fine workmanship of gold mosaics, its four sides should be clean, no paint and other dirt, so only good decorative.

 

7. shear test

This is the best, most direct and most effective way to determine the quality of gold mosaic. That is to take gold mosaic shot, glass mosaics scissors (the kind of tool to use clip art), try cut from the middle, breaking off pieces. To see whether gold or primer will fall off, so when you take off the foil must be a bad product. In other words, those who can not be applied with gold mosaics clip art, are quality problems, alkali resistance, acid resistance, water resistance and other properties are poor.

 

8. Slurry bubble Blackwater

This move is also a good way, that is to take black cement powder 0.5KG (alkaline cement because strongest black) placed 2KG water and stirred. Then into gold mosaic particles. View seven days to check to see if discoloration.