
45501 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $8.99 | Condition is New, SEM 701/45501 JCB REPLACEMENT IGNITION SWITCH KEY, FREE SHIPPING | 100.0% |
![]() | $174.88 | Condition is New, SEM Paints Rust Trap Black, FREE SHIPPING | 99.8% |
![]() | $174.89 | Condition is New, SEM 45501 Black Rust Trap Protective Restoration Urethane Coating (Gallon), FREE SHIPPING | 99.9% |
![]() | $180.30 | Top Pick! Condition is New, RUST TRAP - Black SEM-45501 Brand New!, FREE SHIPPING | 99.3% |
![]() | $180.44 | Condition is New, SEM Paints Rust Trap Black SEM.45501, shipping cost = $9.99 | 99.7% |
![]() | $193.24 | Condition is New, RUST TRAP - Black SEM-45501, FREE SHIPPING | 100.0% |
![]() | $195.43 | Condition is New, RUST TRAP - Black SEM-45501 Brand New!, FREE SHIPPING | 100.0% |
![]() | $195.86 | Top Pick! Condition is New, SEM Paints Rust Trap Black SEM.45501, FREE SHIPPING | 99.6% |
![]() | $196.36 | Top Pick! Condition is New, SEM Paints SEM.45501 SEM Paints Rust Trap Black, FREE SHIPPING | 99.3% |
![]() | $199.22 | Condition is New, SEM Products SEM-45501 RUST TRAP -BLACK GALLON, FREE SHIPPING | 98.6% |
![]() | $217.23 | Condition is New, SEM 45501 Black Rust Trap, FREE SHIPPING | 99.3% |
![]() | $253.99 | Condition is New, SEM 45501 Black Rust Trap 1 Count (Pack of 1), , FREE SHIPPING | 98.6% |
![]() | $341.99 | Condition is New, RUST TRAP - Black SEM-45501 Brand New! (2 Pack), FREE SHIPPING | 99.3% |
![]() | $489.24 | Condition is New, RUST TRAP - Black SEM-45501 Brand New! (3 Pack), FREE SHIPPING | 99.3% |

The SEM 45501 Trap Urethane is a premium, high-performance coating designed for use in wet and humid environments. This gallon-sized container holds one gallon (128 pounds) of the urethane material, providing ample coverage for various applications.
The SEM 45501 Trap Urethane is a two-component, moisture-curing urethane that offers superior bonding and adhesion properties. It is specifically formulated to provide an effective seal in trapping systems, making it an ideal choice for use in wastewater treatment plants, septic systems, and other applications where water and moisture are present.
The material has a low viscosity, making it easy to apply and spread evenly. It can be applied using various methods, including brushing, rolling, or spraying. Once applied, the urethane material will cure in the presence of moisture, forming a tough, durable, and waterproof seal.
This urethane product is known for its excellent chemical resistance, making it suitable for use in harsh environments. It can withstand exposure to various chemicals, acids, and bases, ensuring that the seal remains intact and effective over time.
Additionally, the SEM 45501 Trap Urethane has excellent flexibility, allowing it to accommodate minor movements and expansions in the system without cracking or breaking. It also provides excellent resistance to UV light, making it suitable for use in outdoor applications.
The material has a pot life of approximately 30 minutes, allowing for enough time to mix and apply it before it begins to harden. It is recommended to mix the two components thoroughly before use to ensure proper curing and optimal performance.
The SEM 45501 Trap Urethane is a versatile and high-performing product that offers reliable and effective sealing in wet and humid environments. It is a must-have for wastewater treatment professionals and those in the septic and plumbing industries who require a dependable and long-lasting sealing solution.
SEM 45501 is a two-component urethane coating used primarily for protective coatings in various industrial applications. Here are some pros and cons of buying a gallon of this product:
Pros:1. Excellent Adhesion: SEM 45501 has excellent adhesion properties, making it ideal for coating surfaces that require a high level of durability and resistance to wear and tear.
2. High Chemical Resistance: This coating is highly resistant to chemicals, making it an excellent choice for use in environments where the substrate may come into contact with corrosive substances.
3. Good Temperature Resistance: SEM 45501 can withstand temperatures ranging from -60 F to 250 F, making it suitable for use in extreme temperature conditions.
4. Good Physical Properties: SEM 45501 has good physical properties, including good impact resistance and a high hardness rating, making it suitable for use in applications where the coating may be subjected to physical damage.
5. Good Coverage: A gallon of SEM 45501 can cover up to 150 square feet at a film thickness of 1 mil, making it a cost-effective choice for larger projects.
Cons:1. Complex Application Process: SEM 45501 is a two-component urethane coating, which means that it requires the mixing of two separate components before application. This process can be complex and time-consuming, requiring specialized equipment and expertise.
2. Long Cure Time: This coating has a relatively long cure time, which can range from 24 hours to several days, depending on the environmental conditions and the desired film thickness.
3. High Initial Cost: Compared to other types of coatings, SEM 45501 can be more expensive, making it a higher initial investment. However, its excellent durability and resistance to wear and tear can make it a cost-effective choice in the long run.
4. Potential for Emissions: SEM 45501 is a solvent-based coating, which means that it can emit volatile organic compounds (VOCs) during application and curing. This can pose health and environmental hazards, and special precautions may be required during application.
Ending Conclusion:SEM 45501 is a high-performance coating with excellent adhesion, chemical resistance, and temperature resistance. It is ideal for use in industrial applications where the coating will be subjected to extreme conditions or chemical exposure. However, its complex application process, long cure time, and high initial cost may make it a less attractive option for smaller projects or those with limited budgets. Ultimately, the decision to buy a gallon of SEM 45501 depends on the specific requirements of the project and the resources available.
Recommendation:If you are considering using SEM 45501 for a project, it is recommended that you consult with a coating expert or a professional contractor to determine if this coating is the best choice for your application. They can help you weigh the pros and cons, assess the project requirements, and estimate the costs involved. Additionally, be sure to follow all safety guidelines and precautions during application to ensure the safety of yourself and others.
Details:
Paint direct to rust or bare sanded steel. Compliant everywhere. Per gallon at 2 mils un reduced, not flattened. Can be aerosols with custom fill aerosols.
Wet-on-wet application for fast repairs. Applications: steel. Rusted steel. Properties: covers approx.
Flattened available for gloss adjustment. A high gloss, moisture cured, urethane coating for restoring and protecting rusty metal. No conversion products needed. Features: premium moisture-cured urethane technology.
Can be top coated for UV resistance. Sem 45501 black rust trap protective restoration urethane coating gallon. Properly prepped paint in good condition.
specifications specipaint:
- brand: Sem
- mpn: 45501
- type: Rust Isolation
- volume: Gallon
- color: Black
- upc: 646786455018
seller specipaint:
- city: denver, colorado
- rating: 99.8%
- # reviews: 55208
offer specipaint:
- started: march 28, 2025
- sold #: 18
- prices: $174.88–$489.24
- item condition: New
- availability: in stock
- options: ship-to-home
general specipaint:
- category: Auto Parts > Paints Supplies > Specialty Coatings > Rust Prevention
returns specipaint:
- time: 30 days
- policy: returns accepted
- paid by: buyer
payments specipaint:
- other
- wallet: apple-pay
- credit card: mastercard
shipping specipaint:
- service: standard
- transit: 3-5 days
- type: fixed
- class: standard













