How to repair ceramic cracks

Method 1: Cleaning:

Put the porcelain into a relatively soft plastic basin, wash off the surface soil with clear water, and then scrape off the rust gently with a knife in a straight line with the porcelain surface, but not with the tip of a knife to avoid damaging the glaze.

Method 1: Fill the vacancy

Filling a vacancy refers to the process that the part of an object is still incomplete after splicing, or the incomplete part is filled with repairing materials. There are generally two ways to fill a vacancy: first, the mouth edge, abdomen and bottom of an object are incomplete and need to be filled. This is the most common case of broken utensils, and it is also a relatively easy one to make up. You can use the proofing paste to turn over the molds and samples in the original storage block and restore the defective parts.

Second, where there is no turnover mold for the incomplete part on the original object, we can only refer to the modeling characteristics of similar objects, make the mold first, and then turn over the mold to restore it. This method must be careful when determining the shape of the filling part, and must find the accurate repair basis-reference object before the repair can begin. If you can't find a reference, you'd rather make it defective than make it up at will.

I hope my answer can help you.