The burnt brick
Another brick of Michel on a visit to be pictured: Pat. pend, handcrafted L (or E) and 2 on the opposite side
This one is really interesting - the result of a conversation with MAGICBRICKS:
Cracked / burnt material. Formed by thermal decomposition.
This is particularly common in white shades, as titanium dioxide is often used as a coloring agent there.
Cracked material is burnt, superheated material. Titanium dioxide in the right concentration can even act like an acid and the plasticizing screw can be eaten away.
The burnt brick
Another brick of Michel on a visit to be pictured: Pat. pend, handcrafted L (or E) and 2 on the opposite side
This one is really interesting - the result of a conversation with MAGICBRICKS:
Cracked / burnt material. Formed by thermal decomposition.
This is particularly common in white shades, as titanium dioxide is often used as a coloring agent there.
Cracked material is burnt, superheated material. Titanium dioxide in the right concentration can even act like an acid and the plasticizing screw can be eaten away.