Xylene-Free Mounting Medium
Xylene-Free Mounting Medium
XUP™ Mount
An acrylic resin mounting medium for coverslipping, formulated without xylene. XUP™ Mount removes xylene fumes from slide review at the microscope.
Pre-launch samples from November 2026 · Official launch January 2027| Catalog No. | Size | Pack |
|---|---|---|
| FSOM2012 | 120 mL | 4 / case |
| FSOM2005 | 500 mL | 4 / case |
- No xylene in the mounting medium. Removes the xylene vapor that conventional mounting media release after coverslipping.
- Simpler shipping. Flash point of 62 °C (143.6 °F). Not regulated as a hazardous material for U.S. domestic ground shipment in non-bulk packaging (49 CFR 173.150(f)), and not dangerous goods under IATA or IMDG.
- Fits your current clearing. Compatible with slides cleared in XUP™ or in xylene.
- Not classified for acute toxicity. Oral, dermal, and inhalation acute toxicity are not classified (SDS Section 11).
| Composition | Acrylic resin in a petroleum-based hydrocarbon carrier (UVCB) |
| Appearance / odor | Liquid / characteristic |
| Flash point (closed cup) | 62 °C (143.6 °F) |
| Viscosity | 40–80 cP at 25 °C |
| Relative density | 0.83–0.95 at 20 °C |
| Solubility | Insoluble in water; miscible with common organic solvents |
| Storage | Cool, well-ventilated area, container tightly closed, protected from excessive heat |
| Shelf life | 2 years from date of manufacture. Use within 90 days of opening is recommended. |
| Signal word | Danger |
| Hazard statements | H227, H304, H315, H413 |
| NFPA (Health / Fire / Reactivity) | 1 / 2 / 0 |
| DOT (U.S. ground) | Combustible liquid. Not regulated as a hazardous material in non-bulk packaging (≤ 450 L) per 49 CFR 173.150(f). |
| IATA / IMDG | Not dangerous goods |
| Waste | Dispose of according to local, state, and federal regulations. Do not discharge to drains. |
| Clearing agents | Compatible with slides cleared in XUP™ or in xylene. |
| Other mounting media | Do not mix XUP™ Mount with other mounting media. |
| Coverslipping | Standard coverslipping workflows. Contact our technical team with your coverslipper model for automated settings. |
| Staining | Compatible with H&E, special stains, and IHC. |
This is the fact
The only way to truly eliminate xylene fumes at the microscope is to eliminate xylene from the mounting medium.
Validate XUP™ Mount in Your Lab
Everything your team needs to evaluate XUP™ Mount before switching.
Stain Evaluation SupportSend us 3 stained and 10 unstained slides from the same block. We match your current staining and deliver an optimized protocol.Request an evaluation →
Product FAQsAnswers on the XUP™ system and FIXUP Solution®, including which mounting media to use with XUP™.Read FAQs →
Safety Data Sheet (SDS)XUP™ Mount hazard classification, handling, storage, and transport information.Download PDF →
Practical GuideWhat changes when you switch to a xylene-free mounting medium: compatibility, coverslippers, handling and shipping, and how to verify results in your lab.Read the article →
Request an Evaluation Sample
Your first step to eliminating xylene fumes at the microscope.