Iron man mask Defect

My Ironman mask is at the final stage before painting and something went a bit wrong. when the sealant dried it cracked the mask. this will only set me back a little, i will fill all the cracks and sand the surface down and it will be practically invisible before i paint it. After painting the will be no evidence of it other then this blog, next time i will layer the sealant on with more finner layers rather then a couple of think ones.