Crystal glass products have smooth surface, high transparency, high refractive index, large dispersion value, sharp edges and corners after carvings, and produce crisp and pleasant metal sound when struck.Different amounts of lead oxide or barium oxide are found in different types of crystalline glass.Some crystalline glass also contains rare earth oxides
Crystal crafts maintenance and cleaning matters needing attention
1. Crystal brittle, pay attention to prevent pressure, fall, high temperature, strong alkali, strong acid.When moving crystals, it is best to wear soft cotton gloves to avoid staining the collection with grease on your hands.When lifting crystal article, do not hold the coping that crystal places an article or epitaxial place, the base that should clutch crystal or whole body.Discover crystal to collect on have dirt, do not use feather brush, and should with light soft and the cloth that does not contain downy brush dust gently, do not force wipe, lest wear out crystal.
2. If oil stains or handprints are left on the crystal vessels, wash them with lukewarm soapy water and rinse them with clean water.To avoid repeated cleaning in hot water or cleaning kit.There are cut crystal ornaments, cut parts can be gently cleaned with a toothbrush, if there is not easy to wash out the stains, you can cut the lemon with some salt, gently scrub.Use a few drops of vinegar with salt.If be in store when putting crystal vase, put on shelf upper berth mat cloth beforehand, crystal vase is put in sealed vitreous ark or display case inside, in order to reduce the opportunity that crystal surface accumulates dust, also can reduce manual contact, avoid to cause damage.
3. Don't let the crystal artifacts get too close to each other, or when you run into one of them, the others will fall over because of the domino effect.Ensure to act the role of ark is firm and reliable, shake not easily.
4. If you want to store crystal crafts for a long time, do not use foamed adhesive paper or plastic bags.This kind of packaging can increase the temperature and cause damage to the crystal.In the meantime, must not store crystal attic or cellar, lest they place themselves in abominable environment.