Knowde Enhanced TDS
Identification & Functionality
- Technologies
- Product Families
- Composition
As shipped, Spec+Plus is composed of asphalt cement, plasticizers, polymers, resins, select oils and stabilizers and contains no fillers.
Features & Benefits
- Ready-to-Use Product Features
- Benefits
- Pure Polymer Performance: Longest lasting crack / joint sealant for parking lots and roads
- Resilient: Formulated to perform under the extreme expansion and contraction conditions of colder climates
- Contains No Fillers: Will not settle, jell or coke in kettle
- Energy Savings: Low pour temperature of 325° means lower heating cost and less time on the job
- Sets Firm & Fast: You can open pavement to traffic in 15 minutes
- Proven Performance: Meets and exceeds the standards of ASTM, AASHTO and federal specs for crack sealants, including D1190, D3405 and D6690 Type II & III
Applications & Uses
- Markets
- Applications
- Compatible Substrates & Surfaces
- Basic Uses
Spec+Plus is specially formulated for sealing asphalt and portland cement concrete parking lot cracks.
- Preparatory Work
Crack or joint must be properly prepared prior to installation of Spec+Plus by means of routing and/or the use of a hot compressed air jet to remove all incompressibles and assure the sidewalls of crack are clean and dry.
- Methods
Spec+Plus should be heated in a vessel designed for heating hot pour crack sealants. Some means of agitation and monitoring of temperature are recommended. The range of safe heating temperature for the product is between 325-375° F. At no time should this product be heated to 425° F. This can degrade the polymers in Spec+Plus and create a fire hazard. A direct fire melter can be used if these precautions are met. It also is suitable for use in an oil-jacketed double boiler. Because Spec+Plus contains no fillers, it is an excellent product for use through pumping type kettles.
- Mix Design
Blocks of Spec+Plus are formulated as a single component system. Do not add to or mix with any other material.
- Application
Install heated sealant directly into cracks/joints not to exceed a 4 inch wide band. Thickness should be controlled to not more than 1/8 inch above pavement surface. Finished sealed cracks and joints will be uniformly level. Refill to achieve a flush to 1/8 inch concave surface appearance. One pound of PLS will fill the following lineal feet:
Width
Depth 1/4" 1/2" 3/4" 1" 1/4" 32 16 12 8 1/2" 16 8 5.5 4.5 3/4" 12 5.5 4.5 3 1" 8 4.5 3 2 - Maintenance
Remove from equipment and tools with heat. Clean hands with waterless hand cleaner.
Properties
- Performance Properties
| Value | Units | Test Method / Conditions | |
| Penetration (77°F) | 60.0 | mm | - |
| Penetration (0°F) | 30.0 | mm | - |
| Flow Rate (140°F) | max. 0 | mm | - |
| Resilience | min. 60 | % | - |
| Elongation (77°F) | 600.0 | % | - |
| Bond Test (-20°F, 100% Extension) | Pass | - | - |
| Asphalt Concrete Compatibility | Compatible | - | - |
Regulatory & Compliance
- Applicable Standards
Spec+Plus meets the performance standards of AASHTO M301, FAA P605, the Army Corp. of Engineers CRD C530 and ASTM D6690 Type II and Type III when tested according to ASTM D5329, Standard Test Methods for Hot Applied Sealants. Spec+Plus is also available by special order in a formula that meets ASTM D6690 Type IV.
- Environmental Consideration
Spec+Plus is considered non-hazardous when tested according to the EPA’s TCLP (Toxicity Characteristic Leaching Procedure).
Safety & Health
- Precautions
- Extreme care must be taken with hot applied sealants
- A long sleeved shirt, long pants, gloves and face protection must be worn
- Severe burn hazard
- Keep out of reach of children
Packaging & Availability
- Packaging
- Available in 30 lb. cardboard boxes. One skid contains 70 boxes.
Storage & Handling
- Limitations
- Do not overheat material
- Do not apply to wet or dirty cracks
- Not recommended for cracks over 1" wide
- Do not store in direct sunlight or where temperature exceeds 120° F