DURA-FILL® Mastic Black - Preblended T2

Dura-Fill Mastic Black is a hot-applied, preblended repair mastic comprised of a black, asphalt-based, polymer-modified binder and a select aggregate. This material is self adhesive. Dura-Fill Mastic Black resists cracking, delamination and spalling. It is a flexible material that can withstand heavy loads, weather, traffic and thermal movement. Mastic Black provides a high-friction surface to ensure driver safety. Compaction equipment is not necessary with Dura-Fill Mastic Black. This repair system is formulated to provide a feathered edge.

Recommended Uses: Dura-Fill Mastic Black is recommended for sealing wide cracks and joints, as well as repairing a large variety of distresses in cement and asphalt pavements. It is designed for large cracks and distressed surface areas too small for re-paving yet too large for traditional hot-applied crack sealants.

Surface Preparation: Proper surface preparation facilitates adhesion and consequently the maximum ser-vice life of the mastic. In order for proper adhesion to occur, the surface must be free of moisture, dust, loose aggregate and other contaminates. Avoid use in highly-distressed areas that require reconstruction. The substrate and air temperatures must be 40 °F or above. Use oil-free compressed air and heat to clean and dry the area immediately prior to application. Heating the pavement will promote bonding between the mastic and pavement surface. Caution: Do not overheat/oxidize the pavement.

Melting and Application: Melt Dura-Fill Mastic Black using an oil-jacketed kettle designed for mastic materials. The kettle should be equipped with an agitator and temperature control devices for the material and heating oil. Carefully insert small quantities of Dura-Fill product and the plastic bag into the melter while the agitator is turned off to avoid splash back. Once material has reached application temperature, apply to freshly prepared area. Dura-Fill Mastic Black can be applied directly from the melter using an appropriate flute, bucket or mastic wagon. Immediately following application, the mastic shall be leveled and smoothed using mastic flutes. In deep installations, mastic may be applied in layers, cooling in between. When mastic is installed where added skid resistance is desired, Dura-Fill Mastic Black may be covered with Dura-Top™ surface aggregate. Dura-Fill Mastic Black is ready for traffic when it has cooled and solidified.

Note: The temperature of the heating oil should not exceed 525 °F. Do not heat material over the maximum heating temperature and do not maintain it at that temperature for prolonged periods of time. This could cause the material to gel in the equipment or fail on the pavement. A significant viscosity increase accompanied by stringiness signals the onset of gelation. If this occurs, immediately remove the material from the melter and dispose of it.

For further details read and follow the Dura-Fill SDS, Mastic Installation Instructions, and P&T Products’ Warranty. 

At Road Doctors LLC, we’re committed to getting your asphalt equipment and supplies to you quickly, safely, and reliably. Our goal is to provide a smooth shipping experience from the moment you place your order to the moment it arrives at your door.

Processing Time

Orders are processed and shipped within 1–2 business days, Monday through Friday (excluding holidays). Orders placed after business hours or on weekends will begin processing the following business day.

Shipping Method

All orders are shipped via standard economy shipping, which typically takes 5–8 business days for delivery, depending on your location and the size of the order. While most shipments will arrive within this timeframe, please note that delays caused by carriers, weather, or holidays may occasionally extend delivery times.

Order Tracking

Once your order has been processed and shipped, you will receive a shipping confirmation email with tracking information so you can monitor the status of your delivery.

Shipping Destinations

Road Doctors LLC currently ships to all locations within the continental United States. For shipments to Alaska, Hawaii, or U.S. territories, please contact us directly to discuss shipping availability and rates.

Freight Shipments

Some larger equipment may ship via freight carrier. In these cases, delivery times may vary based on carrier schedules and location accessibility. Our team will contact you directly to coordinate delivery if your order requires freight handling.

Damaged or Lost Shipments

If your shipment arrives damaged or does not arrive at all, please contact us immediately so we can assist you in filing a claim or arranging a replacement. Claims for damaged or missing shipments must be made within 7 days of delivery.

At Road Doctors LLC, we are committed to providing durable, high-quality asphalt equipment and supplies that meet the needs of professionals and contractors across the industry. To protect the integrity of our products and ensure fairness for all customers, we enforce a clear and strict return policy.

Once any equipment or product has been purchased and used, it becomes ineligible for return under any circumstance. This no-return policy is in place to prevent issues related to wear, contamination, and improper handling. However, our team at Road Doctors LLC is fully committed to customer satisfaction and will work with you to resolve any product-related issues.

If your order arrives with missing parts, malfunctions out of the box, or contains shipping damage, we will arrange for the necessary replacement parts, repair services, or shipment of missing items at no additional cost to you.

In the event that a product is believed to be defective, we will review the claim thoroughly. If the item is determined to have a manufacturer’s defect and has not been altered or modified in any way, we will either repair the item or issue a full refund—at our discretion. Refunds will only be processed once the item has been returned to Road Doctors LLC, received at our facility, and inspected by our team to confirm the defect.

Please note the following terms apply:

• Used equipment is strictly non-returnable unless a proven manufacturer defect exists.
• Refunds will not be issued unless a defect is confirmed after inspection at our facility.
• Altered, modified, or customized items are not eligible for return or refund.
• All returns must be authorized in advance by our team and must be shipped to the address provided by Road Doctors LLC.

We encourage all customers to thoroughly inspect their order upon delivery and contact us immediately with any concerns. Our team is here to support you with technical assistance, replacement parts, and repair coordination to ensure your equipment functions as expected.

If you have any questions about this policy or need to initiate a service or inspection request, please reach out to our customer service team at [Insert Contact Info].

Thank you for choosing Road Doctors LLC—we’re here to keep your projects running smoothly.