Introducing the Royston Roskote Mastic A51 Plus in a convenient 1-gallon can – your ultimate solution for superior sealing and waterproofing. This high-performance mastic is specially formulated to provide exceptional adhesion and durability, making it an essential product for both professional contractors and DIY enthusiasts. With its distinctive green label, you can trust that you are getting a top-quality product designed to meet your sealing needs.
Key Features
High-Performance Formula: The Roskote Mastic A51 Plus is engineered with advanced technology to deliver outstanding performance. Its unique formulation ensures a strong bond to a variety of surfaces, providing a reliable seal that stands the test of time.
Versatile Application: This mastic is suitable for a wide range of applications, including roofing, flashing, and general sealing. Whether you’re working on a residential project or a commercial job, Roskote Mastic A51 Plus is the ideal choice for achieving a watertight seal.
Easy to Use: Packaged in a user-friendly 1-gallon can, this mastic is easy to apply with a brush, roller, or caulking gun. Its smooth consistency allows for effortless application, ensuring a professional finish every time.
Weather Resistant: Designed to withstand harsh weather conditions, Roskote Mastic A51 Plus offers excellent resistance to UV rays, moisture, and temperature fluctuations. This durability ensures that your seal remains intact, providing long-lasting protection against leaks and water damage.
Common Applications for Royston Roskote Mastic A51 Plus
Roofing Projects: Perfect for sealing roof seams, penetrations, and flashings, this mastic helps prevent leaks and extends the life of your roofing system.
Flashing and Joint Sealing: Use Roskote Mastic A51 Plus to seal joints and seams in metal and other materials, ensuring a watertight barrier that protects against moisture intrusion.
General Construction: Ideal for various construction applications, this mastic can be used to seal gaps and joints in walls, foundations, and other structural elements, enhancing the overall integrity of your project.
Conclusion
When it comes to sealing and waterproofing, the Royston Roskote Mastic A51 Plus in a 1-gallon can is your go-to solution. Its high-performance formula, versatility, and ease of use make it an essential addition to your toolkit. Don’t compromise on quality – choose Roskote Mastic A51 Plus for reliable, long-lasting results in all your sealing projects.
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Shipping Countries:
United States (US)
Ready to ship in 1-3 business days
from United States (US)
Shipping Policy
To ensure your order is shipped safely and appropriately, we determine the shipping method based on weight, size, and handling requirements.
Parcel Shipments
Smaller items that meet standard carrier limits are shipped via common parcel carriers such as UPS, FedEx, or USPS. This is calculated for you automatically at checkout.
LTL Freight (Less-Than-Truckload)
Orders that:
Weigh over 150 lbs, or
Exceed parcel carrier size or dimensional limits
will ship via LTL freight.
LTL shipments are handled by third-party freight carriers and typically involve palletized delivery. Transit times and delivery scheduling vary depending on carrier availability, destination, and freight class.
Please note:
LTL deliveries often require a delivery appointment.
Liftgate service, limited access, or residential delivery may affect transit time and cost.
It is best to reach out to us before your purchase on items that exceed 150lbs or that are larger than 96 inches in any one direction in order to ensure that you get an accurate estimate on cost.
Full Truckload (FTL) / Specialized Freight
Large or specialized items—such as tanks, vessels, oversized equipment, or shipments requiring hazmat handling or oversized permits—are managed directly by Tri-State Supply.
These shipments may require:
Full truckload (FTL) transport
Oversized or overweight permits
Specialized carriers or equipment
Additional coordination prior to shipment
Because of this, processing and delivery timelines for full truckload or specialized freight are determined on a case-by-case basis. Our team will coordinate directly with you to confirm logistics before shipment. You will need to reach out to us for a quote. You may also arrange freight for your purchases. Loading fees, appointments, and more arrangements will still need to be agreed upon before something leaves our property.
Order Processing & Timing
Most in-stock orders are processed within 1–3 business days. Freight shipments—especially LTL and full truckload—may require additional time to schedule pickup and delivery.
Estimated delivery dates are provided as guidance and are subject to carrier and logistical factors beyond our direct control.
Questions Before You Order
If you are purchasing:
Large or heavy items
Freight-sensitive equipment
Job-site or residential deliveries
we strongly recommend contacting us before placing your order so we can help confirm the best shipping method and set clear expectations.
Tri-State Supply
Customer Support Hours
Monday–Friday, 8:00 AM – 5:00 PM CST
Please allow up to 24 business hours for a response.
Refund Policy
Tri-State Supply Corp
Return & Refund Policy
We want you to feel confident in every purchase from our store. As part of BranaBee, we follow the BranaBee Refund Policy (https://branabee.com/refund_returns/) and have added a few specifics to make returns as simple as possible.
1. Return Eligibility
We accept returns on new, unused items within 30 days of delivery, as long as the item is in a condition that allows it to be resold.
Items marked “As-Is” or “As-Is Where-Is” cannot be returned.
To qualify for a return, items must:
Be unused
Be in original or equivalent packaging
Be free from damage, installation marks, or modifications
Used or installed items are not eligible for return or refund.
2. How to Request a Return
To start a return:
Submit a return or refund request for your order.
If eligible, we will provide a return shipping label via email.
Once we receive and inspect the item, your refund will be issued to your original payment method.
3. Large, Heavy, or Freight-Shipped Items
Returns for large or freight items require special handling:
Our team will contact you to coordinate the return.
Return eligibility and logistics are handled case by case.
Timelines and costs may differ from standard parcel returns due to shipping requirements.
4. Non-Refundable Items
Used or installed items
Items returned after 30 days
Items damaged due to improper packaging or handling
5. Questions Before You Buy
For large or freight-shipped items, we recommend contacting us before ordering. This helps confirm specifications and return expectations.
For any other questions, reach out during business hours:
Monday–Friday, 8:00 AM – 5:00 PM CST
Please allow up to 24 business hours for a response.
✅ Bottom line: Our goal is to make your shopping experience smooth and worry-free. If you ever have a concern about a return, we’re here to help.
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