Question : What is the material of this product?
Answer : This product is made of high quality pure silicone rubber.
Question : Is it easy to install?
Answer : Yes, it is easy to install as it comes with a 3M self adhesive strip on the back for easy peel and stick.
Question : Can it fit any door size?
Answer : This product is sized to fit most doors and can be easily trimmed with a household scissor.
Question : Will this adhere to metal?
Answer : I used it on the metal frame of the door that was painted white. It had a lot of grime that had to be cleaned before installing this weatherstrip. Make sure you thoroughly clean the frame with alcohol or some other solvent that does not leave a residue. Narrow edge goes towards the door. Good luck.
Question : Can it be spray painted?
Answer : No, it has a coating on it.
Question : Can this be attached on top of this product: https://amzn.to/38Krl26? Would it make sense to do that to decrease air and sound leak?
Answer : It won't stick well on a soft foam like that.
Question : Can someone please tell me how thick it is with the teardrop completely open? Can it be easily squeezed together flat or is the teardrop firm?
Answer : Not going to go measure thickness as mfg should have those details available, but it has plenty of ability to collapse. I ordered this a number of times now, and it's very good quality. The way it ships isn't so good if you buy in bulk, but the pre-packaged stuff appears to be packaged neatly.
Question : Does this go on the door or the door frame?
Answer : Door Frame.
Question : Can this be used to replace the seal in the middle of double doors?
Answer : Yes, it can.