Description
Sudbury Elastometric Sealant Black 3oz | Boat Supply Store
Address critical sealing needs on your vessel with this one-part, elastomeric marine-grade sealant. It achieves a rapid skinning time of just 10 minutes and a full cure in 24 hours, significantly reducing project downtime. This formulation provides exceptional adhesion to fiberglass, metal, glass, plastic, and wood without the need for primers, ensuring robust, flexible seals for above and below waterline applications like ports and hardware bedding.
Key Features
- Offers rapid skinning at 10 minutes for quick application progress.
- Features fast 24-hour curing for swift project completion.
- Provides superior adhesion to a wide array of substrates without primers.
- Ensures excellent flexibility and elongation for durable seals.
- Maintains performance across extreme temperatures from -20F to 120F.
- Delivers heavy-duty sealing suitable for above or below the waterline.
- Demonstrates resistance to common marine chemicals including teak cleaners and diesel fuel.
- Allows for wet sanding and painting after full cure for a finished appearance.
Specifications
| Product Specifications | |
|---|---|
| SKU | CWR68854 |
| Brand | Sudbury |
| MPN | 322 |
| Size | 3 oz (89ml) |
| Color | Black |
| Type | One-part, elastomeric marine-grade sealant |
| Skinning Time | 10 minutes |
| Curing Time | 24 hours |
| Adhesion | Fiberglass, glass, plastic, metal, wood (no primer required) |
| Chemical Resistance | Teak cleaners, oil, diesel fuel, saltwater |
| Temperature Range | -20F to 120F |
| Application | Above and below waterline |
| Cleanup | Mineral spirits |
| Post-Cure | Wet sandable and paintable |
| Contains | Toluene (California P65 warning) |
Who This Is For
Marine enthusiasts, boat owners, and professional boat builders/repairers requiring a versatile, durable, and fast-curing sealant for a broad spectrum of above and below waterline applications. This product is engineered for those who demand reliable sealing performance for critical boat maintenance and construction projects.
How It Compares
| Feature | Sudbury Elastometric Sealant Black 3oz | Competitor |
|---|---|---|
| Skinning Time | 10 minutes | 24 hours |
| Full Cure Time | 24 hours | 7 days |
| Temperature Range (Curing) | -28.9C to 48.9C | 5°C to 35°C |
| Adhesion without Primer | Yes (fiberglass, glass, plastic, metal, wood) | Yes |
| Paintable/Sandable | Yes (after curing) | Yes |
| Resistance to Teak Cleaners | Yes | Not specified |
| Resistance to Diesel Fuel | Yes | Not specified |
Common Concerns Answered
Does this sealant contain chemicals that require special consideration?
This product contains Toluene, which is listed by the State of California as a chemical known to cause birth defects or other reproductive harm. Users concerned about this warning should review the product's safety data sheet and consider this information during their purchasing decision.
Are there specific techniques needed for optimal sealant performance?
While generally easy to use, thorough cleaning of application surfaces is paramount for optimal adhesion. Applying sealant evenly and tooling if necessary will ensure a professional, watertight seal.
How does its curing speed compare to other marine sealants?
The Sudbury Elastometric Sealant offers a significantly faster skinning time of 10 minutes and a full cure in 24 hours compared to many alternatives like 3M 4200FC, which can take 7 days to fully cure. This rapid curing allows for quicker project completion and return to service.
Frequently Asked Questions
What is the Sudbury Elastometric Sealant Tube used for on a boat?
It is ideal for sealing ports, bedding hardware, and stopping leaks, particularly for applications such as trim tabs and transducers, on both above and below waterline surfaces.
How long does it take for the Sudbury Elastometric Sealant to cure?
The sealant achieves a fast full cure time of 24 hours.
Can the Sudbury Elastometric Sealant be painted or sanded?
Yes, the sealant is wet sandable and paintable after it has fully cured.
What surfaces does the Sudbury Elastometric Sealant adhere to?
It adheres tenaciously without primers to fiberglass, glass, plastic, metal, and wood.
Is the Sudbury Elastometric Sealant suitable for use below the waterline?
Yes, this heavy-duty sealant is suitable for both above and below waterline applications.
