1 Answers
No unless the cracks tend to cause unwanted wrinkles … look at this You Tube Video for more help, and apply the methods to a wall painting: https://www.youtube.com/watch?v=qwICGuREYAU
No unless the cracks tend to cause unwanted wrinkles … look at this You Tube Video for more help, and apply the methods to a wall painting: https://www.youtube.com/watch?v=qwICGuREYAU