RoadChem™ 206 Microsurfacing®

RoadChem™ 206® Microsurfacing

VSS ASPHALT TECHNOLOGIES DATA SHEET VER: 1.0 --PRODUCT INFORMATION

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DESCRIPTION:
RoadChem™ 206® is a cationic emulsifier for the manufacture of asphalt emulsions for microsurfacing where very rapid break is required due to cooler weather or un-reactive systems.
RoadChem™ 206® may be used with a range of different polymer modification including Neoprene, SBR, EVA, EM, and SBS.

BENEFITS:

Stability
Easy to handle and transport
Wide range of compatibility with aggregates
Excellent adhesion and cohesion

PHYSICAL PROPERTIES:
Appearance: Liquid
Flash point (Closed Cup): (C) > 200
Pour Point: (C) 12C
Specific gravity: 25C 0.93 kg/lt
Viscosity, cps 25C: >1000
Boiling Point (C): >100
Actives: 100%
Storage life: Min 12 months in drums or bulk. (30-50C in covered area in sealed drums)

APPLICATION:
Emulsion Manufacture:
RoadChem™ 206® should be kept at 30C or higher prior to use for pumping. It should not be stored at above 60C.
RoadChem™ 206® can be easily neutralized with hydrochloric acid (concentrated). It is good practice to acidify the water before addition of RoadChem™ 206®.

TYPICAL FORMULATION:
All formulations should be tested in the laboratory before use.
Microsurfacing:
Asphalt: 62-66%
Soap based on total emulsion (by weight)
RoadChem™ 206®: 1.2-1.5%
Concentrated HCI (pure): to pH 1.2-2.3
Latex: 3-4% (of 60% solids)
Water: to 100%

NOTES:
Note that RoadChem™ 206® should be added to warm water that has already had the acid added to it. The emulsifier buffers the solution so mix for at least 20 minutes before testing pH.

Note also that slurry and microsurfacing emulsions must be designed relatively to the mixture. That is a full ISSA mixture design must be done to verify performance.

Notes:

RoadChem™ 206®: may be used with a wide range of retarders including aluminum sulfate, ammonium chloride, JP4, borax, and may be used in the prewet water in a neutralized solution of 5% as a retarder.
RoadChem™ 206®: has a high viscosity at low temperatures, store at 30-50C.
RoadChem™ 206®: neutralizes easily, The ratio of HCI: RoadChem™ 206®: to achieve required pH is about 0.3.
Latex should be co-milled into the emulsion for the best dispersion, emulsion stability and control of the final properties of the microsurfacing. Latex may be post added or added into the soap if no co milling is not available.
In properly formulated systems RoadChem™ 206® can allow application of microsurfacing at ambient temperatures of 6C (and rising).

SAFETY:
Contains alkaline corrosive materials. Will cause eye and skin irritation if significant contact is made. Use goggles , gloves and protective clothing when handling. Refer to the MSDS for further information.

Valley Slurry Seal Company, PO Box 981330, West Sacramento, CA 95798, USA.
Phone (916) 373-1500 Fax: (916) 373-1438 Email: vss@slurry.com

Information given herein is given in good faith, without warranty, representation or inducement or license of any kind. VSS does not assume any legal responsibility for reliance upon same. VSS is not responsible for materials not manufactured by VSS that may represent a hazard in handling or use, nor for the safety of any process employing any VSS product. No representation is given as to freedom from patent restriction.

RK/August 5, 1998