I kinda got in a bind with medium ca ,i was doing something kinda tricky using a q-tip,i had the wife holding both ca and when i needed,i handed her the dam q-tip,somehow she got the ends mixed up and i got ca all over my fingers more than once.No debonder around,told her to get the wd 40,sprayed my hands and worked it in on my fingers,she grabbed the opps and in a few minutes the ca was almost gone,had to do some scraping with a knife but i was happy.