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J-B Weld 31319 Black RTV Silicone Sealant and Adhesive - 3 oz.

by J-B Weld

5,494 ratings

Price:

S$8.07 + S$7.99 Delivery

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General purpose black RTV silicone designed for sealing and bonding uneven surfaces
Great for weather stripping, moldings, interior trim, windows and more
Forms a tough, waterproof seal on most surfaces
Sets in 1 hour and will not shrink or crack
J-B Weld is proudly made in the USA

Product information

Colour:Black

Technical Details

Manufacturer

‎J-B Weld

Brand

‎J-B Weld

Model

‎31319

Product Dimensions

‎22.86 x 12.7 x 5.08 cm; 90.72 Grams

Item model number

‎31319

Manufacturer Part Number

‎31319

Folding

‎No

Material

‎Silicone Sealant and Adhesive

Colour

‎Black

Assembly Required

‎No

Cover Included

‎BLACK SILICONE RTV GASKET MAKER - 3 OZ.

Item Weight

‎90.7 g

Additional Information

ASIN

B00ID8F8E4

Customer Reviews

5,494 ratings

4.6 out of 5 stars

Date First Available

24 July 2014

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Product description

Colour:Black

J-B Weld Black RTV Silicone Sealant and Adhesive

J-B Weld Black Silicone Sealant and Adhesive is a general purpose RTV (Room Temperature Vulcanized) Silicone, designed for sealing and bonding uneven surfaces. Upon curing, which occurs when the product is exposed to the moisture in air, the silicone forms a tough, waterproof seal on most surfaces. It will not shrink or crack, resists weathering and is great for many automotive accessories and household applications.

Great for:

Bonding and Sealing

Weather Stripping

Moldings

Interior Trim

Windows

Windshields

Door Frames

Lens Housings

Use on:

Automotive

Metal

Rubber

And more

Instructions

1. Prepare: Clean surface area of dirt, grease, oil, paint or loose debris. For best results use a detergent or degreaser to first clean the surface, then roughen surface with file or coarse sandpaper to provide the best repair.
2. Apply: Apply even, continuous ¼ inch bead of Silicone to one surface area. Surround all bolt holes with Silicone.
3. Assemble: Reconnect parts while Silicone is wet.
4. Secure: Hand tighten until Silicone begins to squeeze out.
5. Dry: Allow drying for 1 hour and then tighten an additional 1/2 turn.
6. Finish: Scrape or cut away excess cured sealant. Silicone will fully cure in 24 hours.

J-B Weld is proudly made in the USA

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Most helpful customer reviews on Amazon.com

Amazon.com: 708 reviews

Brenna M. Olson

Satisfied! Good for rednecking vehicle repairs.

3 June 2018 - Published on Amazon.com

Colour: Ultimate BlackVerified Purchase

My vehicle is basically being held together with this stuff, and it's working great! I used this to reattach the handle on my lift gate that was loose as well as seal a window and put back on a mirror. We had a brutally cold winter this year, and it held up just fine. I'm sure I'm not using how it's supposed to be used, but when you're broke and have a 18 year old vehicle, you do what you have to.

66 people found this helpful

Elbeau

Stays flexible. Doesn't Let Go

22 May 2019 - Published on Amazon.com

Colour: ClearVerified Purchase

Okay, I screwed up. When I initially reviewed this, I complained that it dried hard and virtually impossible to remove. I was wrong. After finally being able to pry off the plastic item I glued to plastic in my car, I discovered the glue was, in fact, still flexible. So, if you are looking for a glue that stays flexible yet has incredible grip, this is it. If, however, you chose this with the idea of being able to easily remove it later, forget it.

44 people found this helpful

E. Heinrich

First squeeze of tube pushed silicone out the wrong end

29 July 2019 - Published on Amazon.com

Colour: BlackVerified Purchase

I've used dozens of similar products that come in a tube, made of thin aluminum I believe. In fact, I've used a number of J-B Weld products in the past and bought this because of past positive experiences. Following the directions on the package, I used the reverse end of the plastic cap to puncture the opening on the nozzle end and screwed on the long plastic tapered applicator nozzle. I trimmed the nozzle to size which opened the end. So far, so good.
I had prepped the window seal I planned to silicone and began gently squeezing the tube. Some thick black silicone came out the applicator nozzle tip as expected, but unexpectedly a large glob of silicone flowed out the other end of the tube which is supposed to be sealed. Much like a toothpaste tube, typically there is an initial crimped fold of the base of the tube which in this case, appeared to be unfolded, and un-crimped in this tube allowing the silicone to simply push out the wrong end. I had not noticed the defect when I first unpackaged the tube as the bottom end was flat and aligned.
Needless to say it was a terrible mess. I had silicone all over my gloves, on my car body and window, and was really frustrated. I suspect a manufacturing failure to fold and crimp seal the end of the tube. I spent the next 30 minutes cleaning everything up and throwing out gloves, rags, and paper towels. I wish I could try it again but not going to risk buying another bad tube. I'll stick to other J-B Weld products for now.

31 people found this helpful

Steve Day

Perfect for leak-proof gaskets or electrical isolation on vehicles and general repairs.

16 April 2019 - Published on Amazon.com

Colour: Ultimate BlackVerified Purchase

I bought this for replacing the knock sensors on my 2001 GMC Sierra which had a design flaw and needed this stuff to build a water dam around them after replacing the rusted one.

I first cleaned up the area till it was spotless - preparation is key with any adhesive or paint! It goes on easily and you can use a wet finger to contour it and smooth it out.

It cleans up easily when "wet" using shop towels and isopropyl/rubbing alcohol.

If you replace the cap and pull out the cured silicone plug from the nozzle you can use it repeatedly.

I ended up needing it for another fix one month later and it was still good. In fact, I'm going to order another to keep as a spare for repairing stuff, because it's extremely handy for any small fixes that could use some water-tight electrically-insulating silicone sealant.

19 people found this helpful

Needs More BLK

Worked but cracked off on hottest areas of smoker firebox.

23 August 2017 - Published on Amazon.com

Colour: RedVerified Purchase

it worked well on SOME of the areas on my smoker that don't get that hot, but some of the hot areas of my firebox on my smoker cracked and broke and flaked right off, even after a good cleaning/brushing of debris and a two day cure.

I will buy some more an apply it again to confirm it's use. It did plug a lot of the needed areas though.

My infared themomoter only ready at 550 degrees and the packaging stated it can hold up to 650 degrees.

29 people found this helpful

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J-B Weld 31319 Black RTV Silicone Sealant and Adhesive - 3 oz.

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