

🛠️ Seal it like a pro, last like a legend!
J-B Weld 32329 Ultimate Black RTV Silicone Gasket Maker & Sealant is a professional-grade, room temperature vulcanizing silicone designed for mechanical assemblies requiring superior oil and petroleum resistance. It cures to form a waterproof, flexible gasket that withstands intermittent temperatures up to 500°F without shrinking or cracking. Trusted by mechanics and DIYers alike, it bonds strongly to metal, rubber, and other surfaces, making it ideal for automotive and industrial sealing applications.





| ASIN | B00LIRGB84 |
| Best Sellers Rank | 3,837 in DIY & Tools ( See Top 100 in DIY & Tools ) 89 in Sealers |
| Brand | J-B Weld |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,826) |
| Date First Available | 4 July 2014 |
| Exterior | Painted |
| Item Weight | 90 g |
| Item model number | 32329 |
| Manufacturer | JBWeld |
| Manufacturer part number | 32329 |
| Model | 32329 |
| Product Dimensions | 5 x 4 x 16 cm; 90 g |
| Special Features | Waterproof |
| Viscosity | Medium to High Viscosity |
C**R
Good product - tested to 750 degrees ! and OK
Great for attaching seal on Kamado Joe Barbeque
D**L
Really useful high temp sealant that works very well.
Great high temperature sealant, if stored properly a tube will last you years (writing this review nearly 2 years after my purchase) and its still good with no seperation. If you properly prepare the surfaces by removing all debris and grease this sealant will work for many different applications and materials - if using it on oil pans it is critical you clean the mating surfaces meticulously and degrease them thouroughly, apply a bead and smear it with a gloved finger or plastic spatula and reapply some where it thins out so you get a good even coverage to avoid it blobbing out and don't forget to retorque the pan with a criss cross pattern to make sure you're evenly spreading the torque so the rtv doesn't thin out where there are machining imperfections on the mating surfaces - if you're failing to get a oil pan seal you have a very distorted pan head which is very common, you might be better off using the proper gasket for the pan with loctite 5923 as a liquid gasket and apply this rtv on any joints using the smear technique. I've used it recently as a make shift gasket to replace a impossible to source gasket for a throttle body in a 2012 kia ceed 1.6 crdi that has a EGR and DPF, it's easy to apply with the tapered cap, it cures within a really reasonable amount of time, it's affordable and it has many applicable uses.
O**S
Did the job but cheaper options out there.
Used as a sealant for a motorcycle paper gasket, for the price it was OK. It did the job but I think they may be alternative products that would have done it cheaper.
T**N
ANOTHER GREAT PRODUCT FROM J-B WELD
Another great product from J-B Weld with great service and value from Amazon as always.
C**A
Always worked well for engine work.
Never had an issue using this if you follow the directions. Even when I don't leave it for enough time, this has helped me fix a few oil leaks. Only once my car's rear main seal leaked after changing it and using this - but I had to remove it after install because I didn't add enough RTV so the re-install might have caused my leak anyway. Either way, I wish I had followed the time guidance for that one! It will stay liquidy(?) for a few minutes at least - no need to panic if you have to apply then install something awkward. I would try again with new stuff after 20 mins if it's important and you haven't managed to seal your job together. Seems to set enough to use after an hour or two but it will not be at full strength. It's very easy to apply once, then you'll have to sort out how you're going to store it without it hardening in the nozzle. SO messy! I don't care, I don't want to remove an oil pan for a second time so I use this.
C**L
Works great!
Pretty good stuff, worked well!
R**T
Works well at high temperature and pressure
Used to make a seal at high temp and pressure on metal lids going into autoclaves. Works with no problem.
E**G
Good sealer, takes long to dry.
Used this sealer on my sump pan after replacement. Would reccomend letting dry overnight prior to filling with oil as takes longer to set than some sealers I have previously used. Been used on my car for 1 year and no leaks.
C**R
I had to wait for a while for it to be delivered but I am happy that I did receive the item is described a plus plus I still recommend this seller
R**H
الشحن والتغليف جدا ممتاز واشكر البائع على حسن تعامله وصدقه وايضا شكر لك يالغالي على كرت العمل الخاص بكم وايضا على كروكي الموقع الخاص بمحلكم انا من الرياض واحسدكم يا أهل جده على المحلات الممتازه جدا عندكم وضمنهم هذا المحل 😂 ما شاء الله تبارك الله طبعا المنتج اصلي وحقيقاً لم أقم بتجربة الى الان لكني مؤقن بإذن الله انه بيحل الامور بشكل بسيط جدا طلبت هالمعجون لاني ناوي اركب عدسات على شمعات سيارتي وعندي الغراء الخاص بالشمعات الي اسمه بوتيل لكن احب دائما اكون في السيفت سايد (الجهة الامنة) واقطع الشك باليقين وبستخدمه بعد ما اركب الغراء الخاص بالشمعات وبحط من المعجون على خارج الشمعة لجل أمنع اي شكل من أشكال الرطوبه او تسريب الماء والغبار وأساسا هالنوع مصمم على ان يتم استخدام مثلا على كارتير زيت مكينة سيارة والمكان ذا حار جدا بسبب الزيت ويتعرض لكل العوامل ويبقى ممتاز ولا يتأثر بشيء 🌹
I**.
Es el mejor producto
M**O
Cumple las expectativas
A**S
Quality is great! I used on a waterpump install on a Nissan Xterra and no leaks or issues after a year! Product is still usable and hasn't went bad in tube.
Trustpilot
1 week ago
2 months ago