JB Weld J-B Weld Blue Rtv 100% Silicone Gasket Maker & Sealant - 2 Pack - 85G (3Oz) Tubes
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Product Information
Full details
The JB Weld Blue RTV Silicone Gasket Maker (2 Pack 85g) is a 100% silicone sealant for automotive and mechanical repairs, ideal for creating durable, flexible gaskets that replace or supplement traditional ones. Its key benefits include a fast 1-hour set time, sensor-safe formula, and resistance to oil and coolant, making repairs quicker and more reliable. A potential caveat is that it is not rated for specific PSI strength, relying on its flexible sealing properties.
All features
| Colour | Blue |
|---|---|
| Brand | JB Weld |
Extended Product Information
FAQs
What is the primary use for JB Weld Blue RTV Silicone Gasket Maker?
It's designed to create or replace traditional gaskets in automotive and mechanical applications, providing a durable, flexible seal against fluids and vibration.
How long does it take for the gasket maker to set?
The product has a set time of 1 hour, meaning parts can be assembled after this period. Full cure for maximum durability may take longer.
Is this product safe to use on modern vehicles with sensors?
Yes, it is a sensor-safe formula, meaning it will not damage sensitive electronic components like oxygen sensors.
Can I use this sealant on plastic or rubber components?
While it adheres well to metal, plastic, and glass, compatibility with specific rubber compounds should be verified. Always test on a small, inconspicuous area first if unsure.
What temperatures can this gasket maker withstand once cured?
The product is designed to withstand typical engine operating temperatures and fluctuations, but specific maximum temperature ratings should be confirmed with the manufacturer's technical data.
How many applications can I get from one 85g tube?
This depends on the size of the application. The 2-pack provides ample material for several smaller jobs or one or two larger gasket replacements.
Can I use this for household repairs?
While versatile, it's primarily formulated for automotive and mechanical applications where resistance to oil, coolant, and vibration is crucial. For general household sealing, other products might be more suitable.
Troubleshooting
Sealant not curing or remains tacky
Ensure surfaces were properly cleaned and dried. Verify that the sealant was applied in a thin, even layer. Extreme temperatures or high humidity can affect cure times.
Leaking after assembly
Check that components were assembled within the recommended set time. Ensure fasteners were torqued to the correct specifications. Verify that the sealant bead was continuous and adequately sized.
Difficulty applying a smooth bead
Practice on a scrap surface. Ensure the nozzle is cut to the appropriate size for the gap being sealed. Keep the application speed consistent.
Pros and Cons
Pros
- Fast 1-hour set time for quick repairs.
- 100% silicone formula offers excellent flexibility.
- Sensor-safe for modern vehicles.
- Resistant to common automotive fluids like oil and coolant.
- Includes a precision nozzle for easy application.
- Comes in a convenient 2-pack for multiple uses.
Cons
- Not rated for specific PSI strength, best for flexible seals.
- Requires a full cure time for maximum durability (though set time is 1 hour).
- May require careful surface preparation for optimal adhesion.
- Specific temperature resistance limits may apply (refer to manufacturer data).
Setup, Compatibility & Care
Setup: Ensure surfaces are clean, dry, and free of oil, grease, and old gasket material. Apply a continuous bead of sealant using the precision nozzle. For best results, allow the sealant to 'skin over' for approximately 1 hour before assembling parts. Reassemble components and tighten fasteners to the manufacturer's recommended torque specifications.
Compatibility: Compatible with most automotive engine components. It is sensor-safe and suitable for use with metal, plastic, and glass surfaces. Always consult your vehicle's service manual for specific gasket material recommendations.
Care: Store unused tubes in a cool, dry place away from direct sunlight. Ensure the cap is securely fastened to prevent the product from curing in the tube. Cured sealant can be removed mechanically or with appropriate solvent-based gasket removers.