Wallrock Fibreliner is a no nonsense paper strong durable and easy to hang it is suitable for a whole variety of problematic walls. Cracked and damaged walls can be covered quickly and easily and because of its class leading strength it will help to reinforce. Wallrock Fibreliner 150 has a ‘natural’ uncoated finish. Your wall surface. Developed with the best modern materials and technology to enable old and tired walls to be smooth once more.