Type 2 penetrants are visible penetrants which differ from the fluorescent penetrants that make up type 2 because they do not require a darkened area or UV lights to view the inspection. Visible penetrants are not as sensitive as fluorescent penetrants, yet they are also not as likely to be contaminated from cleaners or other fluids. Berg offers water washable as well as post-emulsifiable penetrants from Chemetall. Please browse our categories to find the right product for you. If you have any questions, please call us at 1-847-577-3980 or send an email to firstname.lastname@example.org. Our knowledgeable staff is there to help.