PASS can be utilized for a variety of road maintenance needs. PASS emulsion is a polymer modified asphalt-rejuvenating agent. It has enhanced low and high temperature properties and resists low temperature cracking; as well as maintains and restores asphalt pavements without tracking or bleeding. PASS restorative seals may be applied at ambient temperatures ranging from 45°F to 120°F.

Roadways on the brink of reconstruction have been revitalized with PASS for as little as one-tenth the cost of asphalt removal and replacement.

Call today and find out why states and municipalities throughout the US have made PASS a permanent part of their road maintenance programs.

PASS® Formulations

PASS® CR is a polymer modified asphalt rejuvenating agent used in rejuvenating sand seal, chip seal, crack seal and scrub seal.
PASS® QB is a polymer-modified asphalt rejuvenating agent used in asphalt surface seal, rejuvenating fog seal, crack seal and tack coat.
Advantages of PASS®

Rejuvenates worn asphalt
Seals the asphalt
Fills cracks
Provides a durable wearing course
Resists future cracking
Provides a membrane to resist reflective cracking
Single application is economical
Cold and Hot Recycling using PASS®

The unique characteristics of PASS make it an exceptional recycling agent for hot and cold recycling. PASS® mixes easily with a broad range of reclaimed asphalt pavements, increases adhesion of reclaimed asphalt pavements, decreases raveling, and reduces the risk of bleeding and shoving.

PASS as a Tack Coat

PASS as a tack coat has the unique abilities of penetrating and rejuvenating existing pavements and adhering to the newly applied asphalt mix.
 
PASS Crack Seal

When crack sealing with PASS, weeds must be killed and removed before pouring PASS into the cracks. Cracks that are filled with foreign material must be cleaned. Cleaning may be done by blowing with compressed air, routing or by using a wire brush type cleaner. The cracks do not have to be cleaned out completely as the PASS penetrates through most dirt.
The crack should be filled from the bottom to the top, so the PASS® is flush with the surface of the crack, without the formation of voids. Excess PASS around the surface of the crack should be squeegeed or brushed off. Sand or cover aggregate shall be broadcast over the surface of the crack to avoid picking up uncured material. Large cracks may need to be filled in steps with liberal use of aggregate (as much as fifty percent of the total volume).

Advantages

PASS is an excellent cold pour, polymer modified crack sealer that does not require special application equipment.
When correctly applied, it will not track or bleed.
It is fluid and pours easily at ambient temperatures.
For superior performance it may be applied between 65°F and 150°F.
Equipment that is generally used with asphalt emulsions for crack sealing and crack filling may also be used with PASS®.
PASS Chip Seal and Scrub Seal

A process by which a unique polymer modified asphalt recycling agent, PASS®, is applied to a pavement surface at a rate of .15-.45 gallons per square yard depending on the pavement condition and cover aggregate. A specifically designed drag broom is then pulled through the emulsion, filling cracks and voids left open by the initial application. Next, an even coat of sand (Scrub Seal), chips (Chip Seal) or other readily available aggregate is applied over the emulsion at a rate of 10-25 pounds per square yard. This seal is then rolled with pneumatic tire compactors. Finally, the excess aggregate is swept up approximately 1-2 hours after application, depending on weather conditions and local traffic. These steps follow right after one another, minimizing duration of lane closures.

Origin of PASS® Quick Break

On October 10th, 1994, the Utah Department of Transportation applied PASS QB brand asphalt recycling agent to the northbound lanes of Interstate 15 just south of the junction of Interstate 70. The weather was clear and sunny, and at 9:25 a.m. the ambient temperature was 46°F. No pavement temperatures were recorded. The elevation at the junction is approximately 6900 feet. At 9:27 a.m. PASS QB 50/50 dilute was first applied to the paved portion of the center median and the passing lane at a rate of .11 gallons per square yard. The temperature of the dilute PASS QB was approximately 110°F. At 10:04 a.m. traffic was switched to the passing lane. At 10:16 a.m. PASS QB 50/50 dilute was applied to the travel lane at a rate of .12 gallons per square yard. At 10:31 a.m. PASS QB 50/50 dilute was applied to the right shoulder at a rate of .12 gallons per square yard. At 11:30 a.m. the ambient temperature was 51°F. By 11:25 a.m. all traffic control devices had been removed from the interstate and all of the Department of Transportation equipment and personnel had left the jobsite.

PASS QB Asphalt Rejuvenator:

is a modified cationic emulsion containing a rejuvenating agent, specialized asphalt and quality polymers.
has been carefully formulated with cationic emulsifiers to break rapidly after application so that traffic can be resumed with minimal traffic delays.
penetrates, seals, rejuvenates and beautifies asphalt pavements.
when cured will not track.
prevents further weathering of the pavement surface by preserving the fine surface aggregate particles.
extends the life of an asphalt pavement.
is normally diluted 1:1 and applied at a rate of between 0.08-0.12 gallons per square yard depending on surface conditions.