You save 953 (32%)
32% off the seller list price
Doorstep delivery by 23 Oct - 25 Oct from USA
Seal Your Engine Against Leaks
J-B Weld Ultimate Black RTV Silicone Gasket Maker and Sealant provides a robust, waterproof seal for mechanical assemblies, especially where oil and petroleum resistance is critical. This sensor-safe formula cures at room temperature upon exposure to air moisture, forming a tough gasket that resists shrinking, cracking, and weathering. It's engineered for demanding automotive applications, offering reliable performance in high-temperature environments.
This black RTV silicone sealant is designed to adhere strongly to most surfaces, creating a durable barrier against leaks. Its formulation ensures it won't degrade under exposure to common automotive fluids, making it a trusted choice for engine components, oil pans, and other critical seals. The 3 oz (88.7 ml) tube is convenient for precise application.
Imported directly for Indian customers, this J-B Weld sealant ensures you receive an authentic, high-performance product. All customs duties and GST are included in the price, with delivery via our ExpressBox tracked service. Get professional-grade sealing for your automotive needs.
Engineered for Extreme Conditions
J-B Weld's Ultimate Black RTV Silicone Gasket Maker is formulated for maximum petroleum and oil resistance, a critical need in automotive mechanical assemblies. Unlike generic sealants, it's designed to withstand high temperatures and harsh automotive fluids without degrading. This ensures a long-lasting, waterproof seal that prevents leaks and protects components. Its sensor-safe nature means it won't interfere with vehicle electronics, providing peace of mind for sensitive applications. Trust J-B Weld for a seal that performs under pressure.
Who It's For vs. Who Should Skip It
This sealant is perfect for automotive enthusiasts, mechanics, and DIYers needing a reliable gasket maker for engines, oil pans, transmissions, and other assemblies requiring high oil resistance. It's also suitable for general industrial sealing tasks. However, if you require a sealant for non-automotive applications like plumbing or food-grade contact, or if you need extreme flexibility for large gaps, this specific formulation may not be the best fit. Consider a specialized plumbing sealant or a flexible adhesive for those needs.
Typical situations where J-B Weld Ultimate Black RTV Silicone Gasket Maker and Sealant 3 oz (88.7 ml) | Oil & Petroleum Resistant helps — illustrative scenarios, not customer reviews.
Repairing an oil pan gasket on a car in a hot Indian climate.
J-B Weld Ultimate Black RTV Silicone forms a waterproof, oil-resistant seal that withstands high temperatures up to 500°F. Its durable, non-cracking formula ensures a leak-free repair, even in challenging Indian weather conditions, providing long-lasting protection.
Replacing a valve cover gasket on a vehicle with sensitive electronic components.
This sealant is sensor-safe, meaning it won't interfere with oxygen sensors or other electronics. Its RTV silicone formulation cures reliably, creating a secure gasket that prevents oil leaks without compromising vehicle systems.
| Type | RTV Silicone |
| Curing Method | Room Temperature Vulcanized (moisture cure) |
| Key Properties | Oil resistant, petroleum resistant, weather resistant, sensor safe |
| Temperature Resistance | Up to 500°F (260°C) intermittent |
| Allergens | May cause skin irritation |
| Directions | Clean and dry surfaces thoroughly. Apply a continuous bead (approx. 1/8" to 1/4") to one surface. Assemble parts immediately. Allow to cure for at least 1 hour before use; full cure in 24 hours. |
| Recommended Use | Mechanical assemblies, automotive gaskets, oil pans, valve covers, water pumps, transmissions. |
| Shelf life after opening | 12 months (category default for sealants) |
| Contraindications | Not recommended for food contact, potable water systems, or exhaust gasket applications. |
| Feature | J-B Weld Ultimate | Others |
|---|---|---|
| Oil & Petroleum Resistance | Maximum resistance, formulated for demanding automotive assemblies. | Varies by brand; some may offer moderate resistance, others less. |
| Temperature Resistance | Up to 500°F (260°C) intermittent. | Typically lower, often around 300-400°F (150-200°C). |
| Sensor Safety | Sensor-safe for oxygen sensors and electronics. | Often not specified or may not be sensor-safe. |
| Durability & Cracking | Forms a tough, waterproof seal that resists shrinking and cracking. | May shrink or crack over time, especially with temperature fluctuations. |
| Cost per use | 88.7 ml tube — ₹22.69 per ml | Local 85g tubes typically range from ₹250-₹450, offering similar per-unit cost. |
| SKU | gvp3685 |
| GTIN | 00043425323293 |
| Brand | J-B Weld |
| Model Name | 32329 |
| Color | Ultimate Black |
| Material | Silicone |
| Item Form | Oz |
| Unit Count | 3 Ounce (88.7 ml) |
| Item Volume | 88.7 ml (3 fl oz) |
| Item Weight | 0.09 kg (3 oz) |
| Dimensions (L x W x H) | 5 cm x 4 cm x 16 cm |
| Surface Recommendation | Metal |
| Water Resistance Level | Waterproof |
| Pattern | Solid |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About J-B Weld
J-B Weld is renowned for its high-performance adhesives and sealants, trusted for tough repairs and demanding industrial applications.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
Share your experience
Bought this from CrowCrowCrow? Other buyers want to hear how it went.
This item:
J-B Weld Ultimate Black RTV Silicone Gasket Maker and Sealant 3 oz (88.7 ml) | Oil & Petroleum Resistant
2,013
This item
J-B Weld Ultimate Black RTV Silicone Gasket Maker and Sealant 3 oz (88.7 ml) | Oil & Petroleum Resistant
2,013
Total price:
5,362
You save 1,482 (22%) Extra3 items selected
3 items
5,362You save 1,482 (22%) Extra
| Attributes | Current |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 2,013 2,966 | 1,717 1,729 | 1,632 2,149 | 3,886 4,474 | 3,520 5,420 | 1,720 2,750 | 2,300 3,920 |
| Rating | 4.50(7,079) | 4.60(4,330) | 4.50(5,810) | 4.60(33K+) | 4.50(1,036) | 4.70(294) | 4.70(1,645) |
| Brand Name | J-B Weld | GE | Silco Incorporated | GORILLA | Quartet | uxcell | ALKOO |
| Item Form | Oz | N/A | N/A | N/A | N/A | N/A | N/A |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
Why shop with us
One price. One payment. No surprises.
High risk
Buying Direct
Crowcrowcrow
Safe Lane
