The use of a block chop is most often found in Indonesian and Malaysian batik. This method of applying wax is used when repetitive designs are required, for example for sarongs and batik shirts. Although chops can be made from wood, tin or any metal, copper is best for heat conductivity to ensure that the wax does not harden during the transferring process from stamp to fabric.
For a video on how the block chop is made, please click this link How a batik tjap is made.
After the wax mixture is melted, a pad made from folded cloth that is semi immersed in the the melting pan serves as a stamp pad. This video will show you the stamping process Batik wax stamping