I was hoping someone could help me here. I applied 4 coats of pure tung oil on a walnut top and it seems blotchy, so I sanded it withe 400 grit and it turns white and clogs the paper . It looks very uneven help please
You could also try using Vlies from Festool or similar product from 3M etc to burnish the oil into the pores. I also agree that there may have been wet oil lurking in patches for you to get that clogged paper.