🛠️ Seal like a pro, last like a legend.
LOCTITE® SI 5900 is a premium silicone-based flange sealant designed for high resistance to oil and extreme temperatures (-65°F to 500°F). It offers superior flexibility and adhesion across multiple substrates including metal, plastic, glass, and ceramic. This non-corrosive, low-odor sealant ensures no shrinkage or cracking, making it ideal for stamped sheet metal covers and demanding industrial applications.
| ASIN | B002BWH0WQ |
| Best Sellers Rank | #181,393 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2,493 in Universal Adhesives |
| Brand | Loctite |
| Brand Name | Loctite |
| Colour | As shown in the image |
| Compatible Material | Metal |
| Customer Reviews | 4.5 out of 5 stars 36 Reviews |
| Global Trade Identification Number | 00079340201668 |
| Included Components | 1 |
| Item Form | Paste |
| Manufacturer | Loctite |
| Manufacturer Part Number | 20166 |
| Material | As shown in the image |
| Material Type | As shown in the image |
| Model | 20166 |
| Net Quantity | 1 Count |
| Number of Items | 1 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Metal |
| UPC | 079340201668 |
| Unit Count | 1 Count |
E**A
Worth the money
A bit pricey but does an excellent job. I used it for sealing an oil pan in a diesel engine.
M**D
Very expensive but a very good product
I have used this on a couple Mercedes engine assemblies now. Timing Cover, Valve Covers, Oil Pan on these later Mercedes engines they are all sealed with this special silicone and no gaskets. I have read of other techs needing to re do the job due to leaks because they try to use lower quality silicone products. This one works well as intended. Costs a lot but works. The large tube is enough to do several engines. No leaks on my work so far.
T**J
Workde Great
Worked Great way to expensive!
C**N
$61 tube of caulk hard as a rock unusable garbage
$61 tube of caulk Loctite ran hard as a rock totally unusable
S**O
Loctite 5900
I have an automotive repair shop where I work on just about anything that rolls through the door, A customer has two Sea Doo personal watercraft that were damaged in shallow water requiring major repairs. The Loctite 5900 was what was recommended by the manufacturer for reassembly. This stuff works great, very strong and seals watertight no problem. I even started using it on other applications reguiring silicone. Not cheap but worth it to make sure the repair is done right.
Trustpilot
2 weeks ago
3 weeks ago