Customer Reviews for OSI QUAD Max 9.5 fl. oz. Clay #336 Exterior/Interior Window Door and Siding Sealant (12-Pack)

Good quality product but hard to work with and a very long time to harden. The label says for professional use. This is not a good caulk for an inexperienced user.

Best sealant for doors and windows.

Rating provided by a verified purchaser

I've been using OSI for well over 30 years.... When it comes to Windows...Doors & Siding OSI IS THE ONLY ONE FOR ME

Have been using this caulk for 20 years and it holds up very well. The color stays for a long time as well.

This stuff smells to high heaven so please make sure you use it outside only. I used it to seal up a replacement electrical mounting box in my vinyl siding. Very sticky. Takes a LONG time to dry

Why mess with the rest when you can use the best! Awesome stuff!

Excellent product, an effort to use with the caulk guns sold in store. I ordered a Albion gun online to use with Quad caulk in future.

easy to put on and seals well

Google product to long lasting caulking

Top exterior caulk! Professional grade, perfect color match and easy to apply. Ordered from Home Depot and it was delivered on time. This is the only caulk to us e with LP Smartsiding.

This is a very good high quality pro-grade caulking,

Outstanding product!!!!!!

Caulking easy to apply with higher ratio leverage caulking gun. Very flexible after curing to maintain seal.

Works beautifully. Color options available are perfect and is nicely covered when painted. Fairly easy cleanup, but follow directions and it will be much easier. Avoid allowing to dry on hands. A bit of a strong odor, but dries rather quickly.

Great for caulking a vinyl window to the masonry around it

The best caulk around.

Rating provided by a verified purchaser

Easy to work with. Nice flow. Good bonding

Great sealant.

Worked great

Nice strong bead good seal little rough on the drytime for the clear verse the white but quality material Big brother builder approved

This caulking is a beast for sealing.

Strong and flexible

Excellent caulking for ceiling windows or doors and paints very well recommended I use it on both of my houses

product exceeded all expectations!!

Rating provided by a verified purchaser

Rating provided by a verified purchaser

Good product easy to use

Best caulk for exterior use