Reed Diffuser Base (Type1) Separating from Fragrance Oil

The separation is most likely a solubility/compatibility issue between the fragrance oil system and Reed Diffuser Base (Type1), not a percentage-addition error. Your formula totals 100% correctly:

DiffuseFix™ is a diffuser fixative based on Methyl Hydrogenated Rosinate. It helps diffusion, blooming and longevity, but it is not a universal solubilizer that can force every fragrance oil to dissolve in every diffuser base. If Type1 separates with every fragrance tested, the Type1 solvent system is probably not compatible with the fragrance load/type used, or it needs a different solvent balance than the formula currently has.

The fact that the same formula stays mixed with Reed Diffuser Base (Type2) means your fragrances can dissolve in a different diffuser solvent system. Treat that as useful compatibility evidence, but still check the odor profile separately before choosing Type2 for the finished formula. The slight strange odor you noticed may be from the odor profile of that base/solvent system itself or from interaction with the fragrance.

Recommended troubleshooting:

1. Run a fragrance-load ladder with Type1: test 5%, 10%, 15%, and 20% fragrance, without DiffuseFix first. If it separates even at low fragrance levels, that fragrance/base system is not compatible.
2. Then add DiffuseFix™ only after the base fragrance compatibility is known: try 2%, 5%, and 7-10%. Stay within the catalog diffuser guidance range.
3. Change mixing order: pre-mix fragrance oil + DiffuseFix™ until completely uniform, then slowly add Reed Diffuser Base (Type1) while mixing. Let the blend rest 24-48 hours and check clarity/separation again.
4. If Type1 still separates, reduce fragrance load or change to a lower-odor diffuser base/solvent system that is compatible with the fragrance type. Do not rely on DiffuseFix™ alone to solve phase separation.
5. Check odor separately: smell the base alone, fragrance alone, and base + DiffuseFix™ before adding fragrance. This helps confirm whether the strange odor comes from the base, the fixative, or the interaction between materials.

In short: Type1 is likely not solubilizing your fragrance system at 20% in this formula. DiffuseFix™ can improve diffuser performance after compatibility is achieved, but the base/fragrance compatibility needs to be solved first.