All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
This covering takes the ruling of a splint. We have already issued Fatwa 87008 clarifying its ruling, so please refer to it.
Your prayer with the splint [covering over the burnt] is valid and acceptable, Allaah willing.
Allaah Knows best.