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Momentive RTV 108 Series

4.5 out of 5 stars 44 customer reviews

Price: $21.78 ($21.78 / each/caulker) & FREE Shipping on orders over $35. Details
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10.1 ounces
RTV108
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  • Tack-Free Time: 20 minutes
  • USDA, May be used on equipment in contact with edible products
  • High temperature performance, Maximum continuous operating temperature: 400F, Tensile Strength, kg/cm2 (lb/in2): 28 (400)
  • Capability to cure at room temperature and ambient humidity
  • Self adhesion properties

Product Specifications
Part Number RTV108
Container Size 10.1  ounces
UPC 795871599615 , 094703354218
EAN 0094703354218 , 5448095730702 , 7147905982901 , 0795871599615
Import Designation Made in USA
Item Weight 1.25 pounds
Number of Items 1
Size 10.1 ounces
Specification for this product family
Brand Name Momentive
Material Type Silicone Rubber
Color Translucent
LowerTemperature Range -75  Degrees Fahrenheit
Upper Temperature Range 400  Degrees Fahrenheit
Dielectric Strength 400 volts
Fixture Time 20  minutes
System of Measurement Inch
Tensile Strength Max 325  PSI
UNSPSC Code 31201606
8 new from $15.29 1 used from $52.46

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$21.78 ($21.78 / each/caulker) & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

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Size: 10.1 ounces | Part Number: RTV108
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Frequently Bought Together

  • Momentive RTV 108 Series
  • +
  • 18-8 Stainless Steel Round Shim, Solid, Unpolished (Mill) Finish, Annealed, H04 Temper, Inch, ASTM A666
  • +
  • Stainless Steel 304 Cast Pipe Fitting, Hex Locknut, MSS SP-114, 1" NPT Female
Total price: $30.17
Buy the selected items together

Product Description

Size: 10.1 ounces | Part Number: RTV108

General purpose, one-part silicone sealant that cures to a tough, durable, resilient silicone rubber on exposure to atmospheric moisture at room temperature. Standard strength paste consistency product that can be applied to vertical and overhead surfaces where pourable / self-leveling sealants are not practical. Has excellant low and high temperature performance (-75° to 400°F). Can be used in food contact applications where FDA regulations apply (Reference: CDS4319). Recognized by UL under UL FIle # E-36952.

From the Manufacturer


Product Details

Size: 10.1 ounces | Part Number: RTV108
  • Item Weight: 1.2 pounds
  • Shipping Weight: 12.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B004V40DJ4
  • Item model number: RTV108-10.1 0Z
  • Average Customer Review: 4.5 out of 5 stars 44 customer reviews
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Reviews

Top Customer Reviews

Part Number: RTV108Size: 10.1 ounces Verified Purchase
recommended by many fish hobbyists as a strong adhesive silicone sealant for building aquariums. preferred over GE I/II series for its tensile strength.
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Part Number: RTV103Size: 2.8 ounces Verified Purchase
This is the same product that many of the aquarium builders use.
This is an adhesive, which has a much higher tinsel strength and adhesion strength than the average sealant you get at the pet store.
The working time is around 12 minutes. You need to plan out your assembly and go through a dry run or two before actually attempting to put it together for real.

The tube was well within date, it was only a couple months old when i got it.

If you are doing a tank bigger than 5 gallons, consider the calking tube. This is not the easiest to use to lay down a long even thin bead and keep it smooth and straight. It takes a decent amount of pressure with a thinner bead, you may run into hand fatigue by the time you are finishing up.
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Part Number: RTV108Size: 10.1 ounces Verified Purchase
I used this to create a seal between a plastic electric box and a stainless steel kettle. I needed to keep water from getting inside the box and shorting my heating element. This stuff holds up well at boiling temperatures, and I haven't had a single issue. It is also slightly flexible, so I don't have to worry about it breaking if I bump it.
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Part Number: RTV108Size: 10.1 ounces Verified Purchase
I used this silicone to adhere an acrylic sheet in a glass aquarium to separate the water and land mass in a 90 gallon terrarium. This product worked great were all other silicone I tried failed.
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Part Number: RTV108Size: 10.1 ounces Verified Purchase
I bought a 135gallon column tank that had been resealed and only lasted two weeks before blowing the seals.. capitalizing on his misfortune I got the tank for 100$.. with stand and canopy. .. know knowing that silcone doesnot bond to silicone. I cut the entire tank apart and cleaned all the class... after much research I went with the rtv 108.. this stuff is BADD ASS.... it is soooo strong...I rebuilt the tank and even chipped a place or two during the breakdown process.. let it cure for the three days and filled it up in the garage and it hasnt wept or leaked or anything. I mean this stuff is awsome. Three weeks without so nuch as a drop or any give..
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Part Number: RTV108Size: 10.1 ounces Verified Purchase
I ordered this sealant/adhesive to use for gluing ceramic tiles to metal straps (an art project) and it works great. I did let it cure for the recommended 24 hours and then turned it upside down, ran the entire thing under water, have used them and moved them around and these tiles are permanently affixed. Perfect for ceramic and metal. Glad I found it!
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Part Number: RTV108Size: 10.1 ounces Verified Purchase
This worked great for building my sump for my saltwater reef tank. No issues and seems to have worked perfectly. I would defiantly buy this again.
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Part Number: RTV103Size: 10.1 ounces Verified Purchase
If you are building an aquarium or a sump for a custom setup this is THE STUFF to use. Highly regarded in aquarium building industry as the go to adhesive. This is for bonding glass to glass, please do not use this to try and bond acrylic panels into a glass sump. Silicone / RTV does not bond to acrylic, period. If you use this the way it is meant to be used, you will be very happy with the results.
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Most Recent Customer Reviews


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Size: 10.1 ounces | Part Number: RTV108
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Momentive RTV 108 Series
This item: Momentive RTV 108 Series
Price: $21.78
Ships from and sold by Amazon.com