The PC-3 is for seams during installation. We have used it to repair cracks too.  I do not think that it is designed for drains, but listening to your situation, this might hold up (12-24 months longer) than silicone.

 

Once it is cured, It will hold up to solvents and corrosives (as the specs state), but this is when it is used in bench joints and seams. It should do better than silicone for your application and you won’t have to replace the whole end piece.

 

 

For less than $100 – I think this may be a good option (over silicone) – just be sure dry the sink out well before applying the product (use a heat gun – do it when the lab is out of session) and you allow proper curing time after applying the product. Don’t expect it to last forever, you may have to reapply ever couple of years.

 

Good Luck

 

 

 

 

 

James,

I had found the PC-3 products online as well but wanted confirmation. The sink was installed in 2006. It doesn’t seem to be damaged from what the plumber has indicated (and it’s not really feasible to replace as it is an end piece part of a complete lab bench design). He has replaced the piping under the sink already but wasn’t satisfied with the material he used and wanted something better. Since I’ve been in this job, the only thing that goes down the drain are neutralized acids and general washings from when we wash glassware – nothing too aggressive. Of course I have no idea what happened prior to me getting here!

 

Thank you all for your help!

 

 

 

 

-MB

The black composite material that you are looking for is called PC-3

https://www.smooth-on.com/products/pc-3/

https://farwestmaterials.com/products/pc-3

 

Please do consider replacing the sink, recommend it, or plan for it in the future.

 

Good Luck,

James

 

 

Would appreciate any assistance with this random laboratory question…The plumber at my facility is asking me what type of putty/epoxy/sealant (I really don’t know) he can use to repair the connection in our laboratory sink. It is where the sink basin connects to the drain. Over the years the old material has degraded and allowed for leaking. Any ideas on a specific product or even a generic material type?

 

The sink itself is the standard lab grade, black epoxy resin material you see in most labs.

 

Thanks,

 

 

Melissa Ballard - MSPH, CIH, CSP, CCHO

Industrial Hygienist / Industrial Hygiene Chemist

Michelin North America

email: melissa.ballard**At_Symbol_Here**michelin.com

 

 

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