How long is the curing time when using on a car sump?

I have found it to be quite slow to cure. If you are wanting an almost solid bead before bolting up the sump you may have to wait nearly an hour - depending on temperature. I have used it on gearboxes/Transfer Boxes and it works well but expect quite a lot to squeeze out of the joint.

Has it got a good UV protection? Will be applying in a uv hotspot

Not sure sorry - It was used to seal around a water pump - worked fine

how long does this take to go off if using on thermostat housing so you can add coolant

I would say that providing the face to the housing and its seating face are properly clean before coating evenly and also using a thin correct gasket it should be ready to use within a few minutes.

Can I use this on my oil sump, where there is no gasket just metal to metal?

The surfaces would have to be spotlessly clean and dry with no residue of previous gasket material and the silicone applied very evenly. I have never used it for this purpose myself!

V-tech Red RTV Silicone Instant Gasket Maker 650F 85g

Product ID: 49103149

Details

Brand
VTech
Manufacturer
Vital
Material
Silicone

🔥Withstands up to 650°F

⏱️Instant curing formula

🛠️Durable silicone composition

€ 20.35

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Details

Brand
VTech
Manufacturer
Vital
Material
Silicone

Description

🔥 Seal the deal instantly with V-tech Red RTV Silicone!

TRUSTED BY PROS - Highly rated with 4.5 stars from 157 users, a go-to for pressure cooker and plumbing gasket needs.
SILICONE STRENGTH - Premium silicone base ensures long-lasting, flexible, and leak-proof seals.
COMPACT CONVENIENT - 85g tube size fits easily in your toolkit for on-the-go repairs and maintenance.
HEAT RESISTANT POWERHOUSE - Engineered to endure extreme temperatures up to 650°F, perfect for high-heat applications.
INSTANT SEAL INSTANT CONFIDENCE - Fast-curing formula means less downtime and quicker project completion.

V-tech Red RTV Silicone Instant Gasket Maker is a professional-grade, heat-resistant silicone sealant designed to withstand temperatures up to 650°F. Its instant curing formula ensures fast, durable, and flexible gasket seals, ideal for plumbing and pressure cooker repairs. Compact and highly rated, it’s the trusted choice for reliable, leak-proof performance.

Specifications

ASIN	B00442KUDC
Best Sellers Rank	376,578 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 161 in Pressure Cooker Accessories
Brand	VTech
Customer Reviews	4.5 out of 5 stars 157 Reviews
Item Weight	109 Grams
Manufacturer	Vital Technical
Manufacturer Part Number	151162-SX
Material	Silicone
Model Number	151162-SX

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