Loctite SI 596 is a red, 1-part, flowable smooth, acetoxy silicone paste sealant. It forms a tough, flexible, waterproof, oil-resistant silicone rubber bond. It is also used as a sealant and adhesive in industrial furnaces, ovens, boilers, exhaust stacks, high temperature ducting and heating elements in electrical appliances. Features: Resists ageing, weathering and thermal cycling without hardening, shrinking or cracking. Typically used in applications with an operating range of -50°C to +250°C.
Loctite SI 596 is a red, 1-part, flowable smooth, acetoxy silicone paste sealant. It forms a tough, flexible, waterproof, oil-resistant silicone rubber bond. It is also used as a sealant and adhesive in industrial furnaces, ovens, boilers, exhaust stacks, high temperature ducting and heating elements in electrical appliances. Features: Resists ageing, weathering and thermal cycling without hardening, shrinking or cracking. Typically used in applications with an operating range of -50°C to +250°C.
in 20 offers
last seen 23 Sept 2026
The lowest price we last saw for Loctite Sealant - Sensor Safe Red RTV - Silicone - 80 ml Tube - Each (492001) was $9.04 at New Holland Rochester, compared across 19 retailers (last seen 23 Sept 2026). Prices may have changed since.
The all-time low we recorded was $8.78 on 10 May 2026.
Prices last updated 23 Sept 2026.
Loctite Sealant - Sensor Safe Red RTV - Silicone - 80 ml Tube - Each (492001)
Loctite SI 596 is a red, 1-part, flowable smooth, acetoxy silicone paste sealant. It forms a tough, flexible, waterproof, oil-resistant silicone rubber bond. It is also used as a sealant and adhesive in industrial furnaces, ovens, boilers, exhaust stacks, high temperature ducting and heating elements in electrical appliances. Features: Resists ageing, weathering and thermal cycling without hardening, shrinking or cracking. Typically used in applications with an operating range of -50°C to +250°C.
Loctite SI 596 is a red, 1-part, flowable smooth, acetoxy silicone paste sealant. It forms a tough, flexible, waterproof, oil-resistant silicone rubber bond. It is also used as a sealant and adhesive in industrial furnaces, ovens, boilers, exhaust stacks, high temperature ducting and heating elements in electrical appliances. Features: Resists ageing, weathering and thermal cycling without hardening, shrinking or cracking. Typically used in applications with an operating range of -50°C to +250°C.
Last updated at 23/09/2026 15:57:48
Loctite 37469 Red Hi-Temp Sensor-Safe RTV Silicone Tube, 80-Milliliter
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
LOCTITE RTV Red Silicone Gasket Maker 80ml Tube Part # MC37469
LOCTITE RTV Red Silicone Sensor Safe 80ml/2.7oz 492001
Delivery between Fri – Sun $22.70
Sealing Compound - Loctite RTV Red Silicone Gasket Maker (80 ml. Tube) 37469
Free delivery between 1–8 Oct
Loctite RTV Red Silicone Sensor Safe 80ml/2.7oz LOC492001
Delivery between Fri – Mon $113.55
Loctite Sealing Compound - RTV Red Silicone Gasket Maker (80 ml. Tube) 492001 37469
Delivery between 25 Sept – 6 Oct $418.72
Loctite Red Rtv 80ML Tube
Loctite 596 Superflex Red High Temp Rtv 85G
Loctite SI 596 Hi-Temp Red RTV Silicone 85g
Delivery $10
High Temp Silicone Sealant 260C-Resistant Flexible Red Loctite
Delivery between Thu – Wed on orders of $150+
originally posted on autozone.com
This stuff is awesome. I used it on a headlight bulb connection where the connector was cracked. The bulb grease not only conducted electricity it kept water out of the connector to prevent the bulb from burning out again. Awesome stuff!
originally posted on autozone.com
Used it on my valve cover gasket and the spring seats on all my new struts Good stuff!that's the pros so. Far ! The cons can be used on bolts subjected to vibration not really a con ! But removing the bolts can be a real pain! They require a torch for removal
originally posted on autozone.com
Mechanic who failed my car for exhaust leak from the o2 sensor was going to charge me $125.00 to replace the o2 sensor gasket. Bought the $3.42 gasket and the RTV for $8.99 and fixed myself. Saved over $100.00 bucks
Loctite 37469 Red Hi-Temp Sensor-Safe RTV Silicone Tube, 80-Milliliter
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
LOCTITE RTV Red Silicone Gasket Maker 80ml Tube Part # MC37469
LOCTITE RTV Red Silicone Sensor Safe 80ml/2.7oz 492001
Delivery between Fri – Sun $22.70
Sealing Compound - Loctite RTV Red Silicone Gasket Maker (80 ml. Tube) 37469
Free delivery between 1–8 Oct
Loctite RTV Red Silicone Sensor Safe 80ml/2.7oz LOC492001
Delivery between Fri – Mon $113.55
This stuff is awesome. I used it on a headlight bulb connection where the connector was cracked. The bulb grease not only conducted electricity it kept water out of the connector to prevent the bulb from burning out again. Awesome stuff!
Used it on my valve cover gasket and the spring seats on all my new struts Good stuff!that's the pros so. Far ! The cons can be used on bolts subjected to vibration not really a con ! But removing the bolts can be a real pain! They require a torch for removal
Mechanic who failed my car for exhaust leak from the o2 sensor was going to charge me $125.00 to replace the o2 sensor gasket. Bought the $3.42 gasket and the RTV for $8.99 and fixed myself. Saved over $100.00 bucks
When you open this make a screw size hole in the tube. Use spout but clean it out with Q-Tips. Place a 4" screw firmly in the tube hole (threaded part) replace cap tightly. This will allow fresh RTV to always have a 'channel' to get out.
Tube broke at the bottom while applying it, needless to say the entirety of its contents got all over my hands and on the cam gears - never had I made such a mess. Relatively quick and easy job turned disastrous and time consuming, not a great experience!
I restored a 1977 Chrysler Boat Motor. Difficult to find gaskets for this boat. Used it on the lower unit and on the side unit of motor. Was worried about heat and moisture but after 5 plus years it certainty passed the test. Very reliable product.
It was a clearance item and had to be replace with another type of gasket maker as it was out of stock.
The product was used on my dryer door seal replacement. It worked perfectly, dried quickly and no mess. I'm glad I chose it.
I bought this stuff to use while doing the rear main seal cover on a 2004 GMC Yukon. The stuff is related to use with high temps and around oil. I used this stuff to put a bead along the left and right joints where the oil pan, block and cover meet, and then a bead along the bottom of the cover. I let it cure longer than suggested before running the truck.
Used this on the gas key screws on my AR-15 hoping to not have to stake it extra hard, but the screws loosened. I know that seems like a tough test for the product, but the specs say it should have been able to handle it. A little disappointed. For other uses I am sure it is fine but for anyone else thinking about using this on a firearm you might want to reconsider.
