DESCRIPTION:
RoadChem™ 700®is formulated for use in slurry and microsurfacing systems to control the chemical reactions that occur between the emulsion and the aggregate.

BENEFITS:

• Improves control of systems
• Provided in concentrate form
• Compatible with many polymers
• Used in small quantities
• Enhances adhesion

PHYSICAL PROPERTIES:
Appearance: Amber soft paste
Flash point: >339F (>170C)
Specific gravity: 0.87 @ 78'F (25'C)
Storage: Store in a cool dry place, do not let the temperature exceed 120F (50C). Use open drums first.
Storage life: 12 months minimum (if stored correctly).
Packaging: Supplied in steel 205 lt size drums, in 1 tonne totes, or in bulk.

APPLICATION:
RoadChem™ 700® acts as a retarder or accelerator because it affects the reaction rate at the aggregate interface. At high temperatures this will appear as a retardation and at low temperatures this will accelerate the reaction.
RoadChem™ 700® is compatible with Aluminium Sulphate retarder additives and these may be mixed to achieve a variety of effects.
RoadChem™700® will significantly enhance adhesion. With many aggregates a blend of 1: 1 Aluminium Sulphate and RoadChem™ 700® is best. The slurry or microsurfacing must be purpose designed using ISSA guidelines. Compatibility of the RoadChem™ 700® is determined by laboratory mixes. Levels for use of RoadChem™ 700® and RoadChem™ 700® blends with Aluminium Sulphate are in the range of 0.03 -0.7% of the concentrate based on aggregate weight. If mixed with Aluminium Sulphate, use in levels normal for the Aluminium Sulphate.

PREPARATION OF DELUTE:
The concentrate must be diluted and neutralised to become active. This is usually done to an 8% solution.

To prepare 100 kg of additive solution in a tank equipped with a stirrer:

• Melt the additive by gentle heating.
• Add 86 kg of hot water (50-60C).
• Add 6 kg of concentrated Hcl.
• Add 8kg of RoadChem™ 700.
• Blend well.
• Check pH, adjust to 1. 9 -2. 1.
  * Store in steel drums.

SAFETY:
A Material Safety Data Sheet is available for this product. Always read the safety data sheet for any chemical prior to use.

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