Chip Seal

Cost-Effective Driving Surface

West Contracting completes parking lots, private streets, municipal streets, county work and MoDOT state work during the chip seal season.

Chip Seal provides numerous benefits:

Excellent Skid Resistance
Great Durability
Prevention of Minor Raveling
Seals Cracks and Water Penetration Points

Extremely Cost Effective vs. Traditional Overlays (Approximately One Quarter of the Cost)
Quick Setting and Minimal Traffic Disruption

Application

Chip Seals are used to protect a weathered surface by sealing the old asphalt to prevent moisture from entering the pavement.

Chip Seal, at its core, is the application of a liquid polymer modified emulsion (usually CRS-2P or CHFRS-2P) immediately followed by an application of an aggregate (usually a granite trap rock). The aggregate is then rolled and embedded into the binder, meanwhile the binder “weeps up” and fills the voids between rocks.

The completed driving surface will perform for several years with minimum maintenance costs. The finished product will provide an all weather, skid resistant surface that produces a water resistant layer.

Please see our list of terminology if you are looking for a helpful guide for road bid/construction process, terms and methods that will help you educate yourself, and some testimonials from our own customers.

PDF of Terms

West Contracting’s Promise

West Contracting follows rigorous benchmarks to insure this application is completed properly.

We install Chip Seals from Mid-May to Mid-September as the product is temperature sensitive using the following process:

First, the existing surface must be completely clean of vegetation, dirt, dust, and loose rock. We send a crew a day ahead or the morning of the application to clean, sweep, and blow the road off.
Next, we apply the liquid polymer modified binder at a rate of .25-.40 gallons per square yard by a pressurized distributor. The emulsion rate is dictated by the existing surface conditions and aggregate chosen for the project.
Immediately following the emulsion (30-120 seconds), clean-aggregate is placed through a computerized, self-propelled chip spreader. The self-propelled chip spreader applies the aggregate at a uniform rate over the prepared surface (typically 15-30 lbs/per sq. yd). The most common aggregates used in Missouri are trap rock (blue/grey granite), crushed river gravel, and limestone – placed between 1/4″ to 1/2″.
The aggregate application is then rolled into the binder with a pneumatic 9-wheel rubber tire roller.
Approximately one week after the application, West Contracting sweeps the loose rock off of the new surface.

Want more information about our Chip Seal services?

If you would like more information on Chip Seal surface treatments, contact us at 314-962-3145 or fill out the below form and one of our project managers will be glad to talk to you about your specific needs.