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The 1/4 inch butyl cord I received was good quality and appeared fresh. It was a round cross-section "cord", and not a flat tape. The butyl cord was very flexible and sticky, but not so sticky that it would not let go of your fingers. I applied it at about 70F degrees and kept it out of direct sun so it would not get too soft. I used the cord to seal around the base of some outdoor wall lights that did not fit snuggly to the wall. It worked great. I could push and pull the butyl cord into shape to fit the crack between the light base and the wall. Should provide a good seal from weather.

Great product. It works great.

Fantastic stuff! I used this to seal around speaker frames. It is very tacky but molds very easily. I had on nitrile gloves and had no issues with it sticking to my gloves. It made a really good seal. It will thin out quickly if you pull against a part that is stuck down already. I found the best method was to lay it out where I wanted it then kinda smashed it in the gap and worked it around the frame. It is tacky enough it stayed put while I worked it in place. Would highly recommend

Nice product! Sticks very well! Fast shipment too! Love the storage box it comes in but love this product even more! Going to test the leakage over the next few days. It is the perfect size and thickness. Applied in 58 degrees. Checking it as the temperature is supposed to fall back into the 20's. Cutting this to length like butter! Thanks for putting out on Amazon and thank you again for the rapid shipping!! A++++ seller

Worked great for my RV window install. I would recommend