Video instructions
Learn how to clean a boat surface by watching Hempel's tutorial video
Follow our step by step instructions
to learn how to clean a boat surface
Step 1
If the paint coat is intact, just wash and degrease the surface with Hempel's Pre-Clean
![](/en-gb/-/media/Images/HempelYacht/Images/How-to-single-pages/Painting-advice/Paint-project-preparation/Treat-Hempels-preclean-and-degreaser/How-to-treat-with-Hempels-PreClean-and-Degreaser--step-1.png?h=300&w=600&hash=AC7E5770FFBA2375F37FF1DC8D793A32)
![](/en-gb/-/media/Images/HempelYacht/Images/How-to-single-pages/Painting-advice/Paint-project-preparation/Treat-Hempels-preclean-and-degreaser/How-to-treat-with-Hempels-PreClean-and-Degreaser--step-2.png?h=300&w=600&hash=CDF97BDDB9194774FA73A61C9415FF14)
Step 2
If the surface is very contaminated, then use Hempel's Degreaser (not on painted surfaces). Clean thoroughly with fresh water and allow to dry.
Step 3
Check if the surface is still greasy by sprinkling it with water. If droplets form, the surface is still greasy and needs a further treatment with Hempel's Degreaser
![](/en-gb/-/media/Images/HempelYacht/Images/How-to-single-pages/Painting-advice/Paint-project-preparation/Treat-Hempels-preclean-and-degreaser/How-to-treat-with-Hempels-PreClean-and-Degreaser--step-3.png?h=300&w=600&hash=E3CAB2E7714F824C19E1880E643D2B23)
![](/en-gb/-/media/Images/HempelYacht/Images/How-to-single-pages/Painting-advice/Paint-project-preparation/Treat-Hempels-preclean-and-degreaser/How-to-treat-with-Hempels-PreClean-and-Degreaser--step-4.png?h=300&w=600&hash=B3351B2BFE1FA9A5DFB99B4533733C47)