Keyton Energy / Medium curing

Medium curing cutback bitumenLoaded at UAE ports

Medium curing

Medium curing cutback bitumen

Cutback binder specified by curing type and viscosity.

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Data sheet

Medium curing cutback bitumen technical data.

Cutback bitumens are made by dissolving pure bitumen in solvents or petroleum oils.

The type and quality of a cutback depend on the quality of the base bitumen and on the type and amount of solvent: the more solvent the cutback contains, the more fluid it is.

Cutbacks are used where hot bitumen causes problems: no access to heating equipment, breakdown of the bitumen at high temperatures, the bitumen cooling during the work, poor penetration into fine mineral material, worker safety, fire risk and lost time. They are used in road building for surface coats (prime and tack), cold mixes and surface treatments, and in some cases are blended at the plant or mixed in place.

Cutbacks are classified by viscosity grade and divided into three groups by curing speed and solvent type.

Cutback bitumens

Rapid curing cutback (RC): When gasoline is used to dissolve the pure bitumen, the cutback is called rapid curing, because shortly after application the solvent evaporates and the base bitumen remains in place.
Medium curing cutback (MC): Medium curing cutbacks are made by dissolving pure bitumen in kerosene, which evaporates more slowly and over a longer time than gasoline. The number in the MC designation is the minimum kinematic viscosity in centistokes.
Slow curing cutback (SC): Slow curing cutbacks are made by dissolving pure bitumen in oils and low volatility petroleum solvents such as gas oil or fuel oil, or can be obtained directly from crude oil distillation like pure bitumens, in which case the solvent oils have not yet separated from them. Full curing of these bitumens takes a long time after application.

Packing data

Steel drum (barrel) specification

Steel drums are widely used for packing bitumen; their size, thickness and capacity must suit the filling equipment. Standard drums have a body plate thickness of 0.6 mm and come in two heights, tall and short, of 89 ± 3 cm and 68 ± 3 cm.

Property	Quantity	Unit
Body Plate Thickness	0.6	mm
Top & Bottom Plate	0.6	mm
Thickness Height	100	cm
Diameter	50±2	cm
Lid Hole Position	Center
Lid Hole Diameter	20	cm
Net Filling Capacity	182.5±2.5	Kg
Empty Drum Weight	9.5±0.2	Kg
Color	Furnace Black

Short drums hold about 150 kg and cost more per tonne than tall drums; in many markets tall drums of 180 kg filling are the most used.

A 20 ft container carries 110 drums without pallets or 80 drums palletised; a 40 ft container carries 137 drums without pallets or 150 drums palletised.

A flatbed truck carries about 115 drums without pallets or 90 drums palletised.

Used drums are not recommended: they do not meet international quality standards, and new drums reduce transport risk.

Overview

Medium curing cutback is bitumen blended with kerosene. It cures more slowly than RC, giving a longer working time for prime coats over granular bases, cold mixes and patching. Grades MC-30 to MC-3000 are specified under ASTM D2027/D2027M by kinematic viscosity at 60°C.

The numeric grade is a standard classification, not a general use recommendation. Confirm full specification limits and local permitted applications.

GradesMC-30 · MC-70 · MC-250 · MC-800 · MC-3000

StandardsASTM D2027/D2027M, edition specified by purchaser

Packing2 formats

LoadingUAE ports

Available grades

Kinematic viscosity at 60°C, cSt

Select a grade to start a quotation for it.

Grade guide

Grade definitions and specifications.

The table is a selection guide. The agreed specification, edition and certificate of analysis for your lot determine acceptance.

Grade	Curing type	Acceptance values
MC-30	Medium curing	ASTM D2027 limits by edition
MC-70	Medium curing	ASTM D2027 limits by edition
MC-250	Medium curing	ASTM D2027 limits by edition
MC-800	Medium curing	ASTM D2027 limits by edition
MC-3000	Medium curing	ASTM D2027 limits by edition

Specifications

Technical specifications.

Typical limits with the test method for each property. A certificate of analysis is issued for each lot; it and the agreed specification govern acceptance.

MC cutback: specification

Limits of ASTM D2027/D2027M. Distillation fractions are percentages of the total distillate to 360°C.

Test	Method	MC-30	MC-70	MC-250	MC-800	MC-3000
Kinematic viscosity at 60°C (cSt)	ASTM D2170	30 to 60	70 to 140	250 to 500	800 to 1,600	3,000 to 6,000
Flash point, Tag open cup (°C)	ASTM D3143	38 min	38 min	66 min	66 min	66 min
Water (% vol)	ASTM D95	0.2 max	0.2 max	0.2 max	0.2 max	0.2 max
Distillate to 225°C (%)	ASTM D402	25 max	0 to 20	0 to 10	n/a	n/a
Distillate to 260°C (%)	ASTM D402	40 to 70	20 to 60	15 to 55	35 max	15 max
Distillate to 315°C (%)	ASTM D402	75 to 93	65 to 90	60 to 87	45 to 80	15 to 75
Residue from distillation to 360°C (% vol)	ASTM D402	50 min	55 min	67 min	75 min	80 min
Residue: absolute viscosity at 60°C (Poise)	ASTM D2171	300 to 1,200	300 to 1,200	300 to 1,200	300 to 1,200	300 to 1,200
Residue: ductility at 25°C (cm)	ASTM D113	100 min	100 min	100 min	100 min	100 min
Residue: solubility in trichloroethylene (% wt)	ASTM D2042	99.0 min	99.0 min	99.0 min	99.0 min	99.0 min

References:Grading reference

Certificate of analysis

Certificate of analysis requirements.

Kinematic viscosity at 60°C: ASTM D2170
Flash point using the method specified for the grade
Distillation fractions, residue and water content
Residue viscosity or penetration, ductility and solubility as specified

Request the grade specific analysis with your quotation. Results, test methods and the applicable specification are confirmed for the supplied lot.

Packing

Packing and shipment formats.

The packing system is confirmed against the grade, handling equipment and transport requirements.

Representative packaging imageDrums

New steel drums

Sealed new steel drums, the most flexible way to ship: any quantity, any container, unloaded by forklift at site. Drums come tall or short; tall drums are the more widely used, and short drums cost more per tonne. We do not recommend used drums, which do not meet international quality standards; new drums reduce transport risk.

180 ± 3 kg net / 190 ± 3 kg gross per drum
150 ± 3 kg net / 159 ± 3 kg gross per drum
Stuffed in 20 ft containers
Marked and labelled to your instructions

Specification
Body plate thickness	0.6 mm
Top and bottom plate thickness	0.6 mm
Height	89 ± 3 cm tall drum, 68 ± 3 cm short drum
Diameter	50 ± 2 cm
Lid hole position	Centre
Lid hole diameter	20 cm
Net filling capacity	180 ± 3 kg tall drum, 150 ± 3 kg short drum
Empty drum weight	9.5 ± 0.2 kg
Colour	Furnace black

Loads per unit
Transport	Without pallets	Palletised
20 ft container	110 drums	80 drums
40 ft container	137 drums	150 drums
Flatbed truck	About 115 drums	About 90 drums

Representative packaging imageLiquid

ISO tanks

Insulated ISO tank containers for compatible liquid products, sealed and reusable.

Product and temperature compatibility confirmed
Discharge requirements agreed before loading
Reusable tank

Delivery terms

Export delivery terms.

FOB, CFR and CIF quotations under Incoterms 2020, from UAE ports.

Term	Name	What it covers	Details
FOB	Free on board	We deliver the cargo on board at the UAE port of loading.	Risk passes to you once the cargo is on board the vessel at the UAE port. You book and pay the sea freight and insurance. Best when you already have a freight forwarder or a shipping line contract.
CFR	Cost and freight	We pay the sea freight to your named port.	We book and pay the freight to your destination port. Risk still passes on board at loading, so you arrange cargo insurance. A simple choice when you want one landed freight price without buying our insurance.
CIF	Cost, insurance and freight	Freight and cargo insurance to your named port, both on us.	As CFR, plus we take out cargo insurance for your benefit until the destination port. Often requested by banks under a letter of credit.