D120 Dearomatized Solvent · European B2B Sourcing
D120 is the top of the ultra-low-aromatic D-cut range, flash point ~min 110°C, viscosity ~3.60–5.50 mm²/s at 25°C, distillation from ~251°C to ~300°C, with aromatic content typically below 0.1 wt%. It is typically evaluated when D100 does not provide sufficient flash-point headroom or when a high-viscosity ultra-low-aromatic dearomatized process fluid is specifically needed. For an even heavier option, D140 is the heaviest grade in the wider family but allows aromatic content up to ~2 wt%.
Availability and pricing can change weekly depending on refinery output, allocation and demand. In tighter markets, D120 may become restricted or unavailable without notice.
Used by purchasing managers, distributors and formulators across Europe to validate supply, pricing and feasibility before internal approval.
Typical response from the relevant supplier in the network.
For lighter options in the dearomatized D-cut family, see the D100 page (~min 101°C), the D80 page (~min 74°C), or the D-cuts guide. For a heavier option still, see the D140 page (~min 129°C, typically non-DG packaged).
Fast commercial starting point
What you typically want from a D120 enquiry
A good first response should immediately tell you whether the requirement is workable, what the real market position is, and whether the grade can actually be supplied under current conditions.
At a glance
Product fit
D120 is the top of the ultra-low-aromatic D-cut range (aromatic content typically below 0.1 wt%). The indicative specification points to a minimum flash point of ~110°C, an initial boiling point of ~251°C, a final boiling point of ~300°C and a viscosity at 25°C between ~3.60 and ~5.50 mm²/s. D120 is relevant when the process or site rules require a flash point clearly above ~100°C and D100 is not enough, when a high-viscosity ultra-low-aromatic process fluid is specifically needed, or when ultra-low aromatic content disqualifies the heavier D140 grade (which allows up to ~2 wt% aromatics).
In practice, most wrong solvent selections come from starting with the grade name instead of the process constraint, validating this early typically avoids requalification delays, internal rejection or unnecessary formulation work.
Choose D120 when
Your site, formulation or compliance framework requires the highest available flash point in the dearomatized family, ~110°C minimum, and D100 does not provide sufficient headroom.
Think twice when
D100 or D80 already meet your flash-point requirement. Moving to D120 without a clear technical driver adds cost and may complicate sourcing without proportional benefit.
Check the viscosity
D120's viscosity at 25°C runs ~3.60–5.50 mm²/s, significantly higher than lighter D-cut grades. If the formulation or process requires a specific viscosity profile, this must be reviewed before approval alongside flash point.
Always verify
Final fit depends on formulation, process, compliance, viscosity requirements and the actual specification being quoted. D120 should never be approved on grade name alone.
Technical snapshot
A usable technical starting point. Not a substitute for the current document shared during quotation, but detailed enough to help a procurement team decide whether the discussion is worth opening.
Grade context
This is not a producer specification table. It is a commercial buying guide to help frame whether D120 is the right discussion for your requirement.
| Decision point | D120 | D100 | D80 |
|---|---|---|---|
| Typical buying logic | Top of ultra-low-aromatic rangeWhen D100 is not sufficient on flash point or viscosity, but ultra-low aromatic content (<0.1 wt%) is still essential. For applications tolerating up to ~2 wt% aromatics, D140 is the heavier alternative. | Very high flashUsually chosen when a flash point above ~100°C is required but D120's viscosity or boiling range is not needed. | High flashOften the starting point when a clearly high flash point is required but ~74°C minimum is sufficient. |
| Flash-point direction | Highest in the ultra-low-aromatic range; ~min 110°C. | Indicative spec ~min 101°C. | Indicative spec ~min 74°C. |
| Viscosity | ~3.60–5.50 mm²/s at 25°C, significantly higher than D80. | Not specified in supplied D100 spec, check at quotation. | ~1.50–1.75 mm²/s at 40°C, lower viscosity. |
| Evaporation direction | Heaviest boiling range in the ultra-low-aromatic range. | Very slow. | Slow, faster than D100 and D120. |
| Typical buyer question | "Does the process need ~110°C minimum flash and the heavier viscosity profile?" | "Is ~101°C flash point enough, or do we need D120's higher minimum?" | "Is ~74°C flash point sufficient, or does compliance require more?" |
For a broader grade-selection guide, see Which D-cut grade?
Applications
D120 is most relevant where flash point and viscosity are both selection criteria, and where ultra-low aromatic content (typically below 0.1 wt%) is essential. For applications tolerating up to ~2 wt% aromatics in exchange for an even heavier profile, D140 is the alternative. Application suitability is the buyer’s responsibility to verify.
Metalworking
Metalworking fluids and process oils
Frequently discussed for metalworking fluid base or process-oil formulations where a high flash point and heavier viscosity are both required, while ultra-low aromatic content remains essential.
Mold release
High-temperature release-agent systems
Relevant where mold temperatures or site regulations demand a flash point above ~110°C and a heavier carrier than D100 provides.
Cleaning
High-flash industrial cleaning
Process cleaning applications review D120 when a very high-flash, heavy dearomatized route is required and slower-evaporating behaviour is acceptable or desired.
Process oils
Industrial process-oil applications
D120's heavier viscosity and high flash point make it relevant in process-oil discussions where a dearomatized, well-documented specification is preferred over a generic naphtha.
Coatings
Process fluids and heavy coatings
Can appear in coating and process-fluid discussions where the combination of high flash point, heavy boiling range and defined viscosity drives the grade selection.
Blanket wash
High-flash blanket-wash discussions
Can appear where fire safety requirements or press environment rules push the flash-point requirement above what D100 can provide.
Consumer products
Consumer and maintenance formulations
Can appear in consumer-product discussions, always subject to suitability, compliance and documentation review for the intended market and jurisdiction.
General
General industrial blending
Also used by distributors and formulators who need a reliable D120 sourcing route for ongoing European industrial demand where a high-flash, ultra-low-aromatic dearomatized grade is specified.
Buying checklist
The fastest route to a good D120 decision is to confirm the flash-point requirement, check viscosity and distillation fit, and review documentation before going deep into price discussions.
Most incorrect solvent selections come from starting with the grade name instead of the process constraint, validating this early typically avoids requalification delays, internal rejection or unnecessary formulation work.
Supply logic
The most useful quotation discussions are the ones where packaging format is aligned with actual usage, delivery geography and unloading reality.
Bulk tanker
Usually the most economical route for larger industrial demand and recurring consumption. Best when the site is equipped for unloading and the requirement is commercially large enough to justify tanker logistics.
IBC supply
Makes sense for mid-range volumes, qualification work, multi-site demand or buyers who want flexibility without immediately committing to full bulk handling.
Drums
Relevant for smaller volumes, more fragmented demand or sites where access, storage or handling rules make drums more practical than IBC or tanker supply.
FAQ
Is D120 the same from every supplier?
No. D120 refers to a recognizable grade band, but exact aromatic content, viscosity, distillation behaviour and documentation can vary by source and supply route. Always review the current sales specification for the quoted material.
What is D120 usually used for?
Common discussions include metalworking fluids, mold release, high-flash industrial cleaning and process-oil applications where a high flash point and heavier viscosity are required and ultra-low aromatic content (typically below 0.1 wt%) is essential. For applications tolerating up to ~2 wt% aromatics, the heavier D140 may be the better fit.
Can D120 be supplied in bulk, IBC and drums?
Yes, depending on volume, route and current supply position. Bulk is often the most logical for larger quantities. IBC and drum options can be discussed where the route and packaging format make sense.
What flash point and boiling range should buyers expect?
The indicative D120 snapshot on this page shows a minimum flash point of ~110°C, minimum initial boiling point of ~251°C and maximum final boiling point of ~300°C. Actual quoted documentation always governs.
How does D120 compare to D100 and D80?
D120 sits at the top of the ultra-low-aromatic D-cut range, with the highest flash point (~min 110°C) and heaviest distillation profile (~IBP 251°C, ~FBP 300°C) at this aromatic specification. Its viscosity (~3.60–5.50 mm²/s at 25°C) is notably higher than lighter D-cuts. D100 sits just below at ~101°C minimum flash. For applications tolerating higher aromatic content (up to ~2 wt%), the heavier D140 grade (~min 129°C flash) is the next step up but is structurally a different aromatic specification. If D100 already meets the flash-point requirement, D120 may not be necessary. See the full D-cuts guide for the complete picture.
Do you provide SDS and current specification?
Yes. Current sales specification and SDS can be shared during the quotation process, subject to the actual supply route and available producer documentation.
Is D120 always available in Europe?
No. Availability depends on refinery output, seasonal demand and allocation. In tighter markets, D120 can become limited or shift significantly in price week-to-week. Buyers typically validate availability early rather than assuming continuity.
What is the price of D120 in Europe?
D120 pricing depends on refinery output, availability, volume, delivery location and packaging format. Prices can move weekly. Most buyers request a current quotation rather than relying on historic price levels.
Send an enquiry
A complete enquiry allows a commercially realistic answer from the relevant supplier in the network, including whether supply is actually possible under current market conditions.
No obligation enquiry, used by buyers to validate price, availability and technical fit before committing internally.
Industrial B2B enquiries only, typical volumes start from ~5 MT and above.
If you are comparing D120 with D100, D80 or another process fluid, it is usually more efficient to validate pricing and availability early before investing further in technical approval.
All offers are subject to availability and subject to final confirmation. Specification, packaging format, availability, timing and pricing are confirmed at quotation stage based on the current supply route. Buyers remain responsible for checking suitability for the intended use and for compliance with applicable regulations.
Enquiry received.
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