I want to use Oil Plus 2C to protect my indoor wood but it's not covering enough. How can I achieve a more intense colour?

You can achieve a more intense colour through various ways:

1. Sanding method: use a lower grit. The smoother the surface is, the less oil and pigments will penetrate in the wood, resulting in a less coloured surface. We recommend using grit 100 for flooring and grit 100 - 150 for furniture, stairs and worktops.
2. Use WoodPrep instead of Cleaner.
3. Use one of our optional pre-treatments Pre-Aging or Precolor Easy.

Certainly do not try to apply multiple layers. Once the fibres are bonded with the oil, the wood doesn’t absorb any surplus product – which makes a second layer superfluous.