This scratch repair pen especially works for deep scratches like expose primer,expose black plastic,obvious cratering when hand touching,peeling to the bottom ash, the paint in bottle is advance car paint,it is durable and solid . it is also anti-rust and waterproof . never fade in long-term use . protect the scratches area from sands,dirt, water after car wash and sewage on the ground after rain .etc | Easy to use -- just 3 steps .clear the scratches area ,move the oil,dirt,wax,rust .etc on the scratch . shake the pen up and down about 40 times .paint on the scratch area until the scratch is covered.(Detailed steps, please read the instructions) . it will save you lots of time and money , and make the scratches much less noticeable . | Long-term storage and multiple times use -- the product’s Validity period is 4 years , Tighten the cap and keep it upward after use ,then it can be stored for a long time and keep effective when you use it next time . | Easy to dry -- it only take about 10 minutes (Normal temperature) to dry , when you finish the first layer , it will dry very fast , if the scratches are very deep , then you can paint the second layer and third layer until the scratch is fully filled . save you lots of time .note: please use it in sunny days. | 100% SATISFACTION -- if you are not 100% satisfied with our products . we will send you full refund , and if there are any questions when you are using this product . Please feel free to send us emails any time, we will be very happy to help and our engineers will give you professional guidance . Your smile is our unremitting pursuit .