LOCTITEPL S30 Black Roof and Flashing Sealant 10-Fluid Ounc

This is solvent based stuff that sticks to everything. I use on heavy metal repairs. Seals out moisture completely. Red primer adheres to it very well. Please know that it takes several days to cure.

Leaks after one year in the sun. Tried to seal small gap in gutter. Separated the gutters and cleaned them throughly. Applied this and overlapped the two by 2". Worked fine the first year but this is the first year after and its leaking. Read good reviews and thought it might be worth the price but don't be a fool like me. Way over priced, found other comparable at Home Depot much cheaper. This stuff is worth maybe $13 a tube.

This is good stuff. Costs double the Chinese stuff but it’s worth it. Keep Americans working. I used it to seal down two sets of 24” diameter risers on my concrete septic tank. Ran two thick beads on the mounting flange and it stuck that plastic ring down tight to the clean dry concrete surface. Also ran a bead in each riser ring. It’s great stuff!

Works fine, delivery was helpful

The product I received did not have the label PL S30 but I believe it might just be an updated label. It still worked otherwise and is a good product. I used it for rocks for a koi pond instead of roofing and it held just fine! Would probably go with another route in the future. I recommend using an entire tube and not saving a used tube for next time because it is super hard to use it after it has been opened on an earlier date.