question

confused avatar image
0 Likes"
confused asked

How does Blu-tack stick, but not feel sticky?

materialglue
10 |600 characters needed characters left characters exceeded

Up to 8 attachments (including images) can be used with a maximum of 1.0 MiB each and 10.0 MiB total.

1 Answer

· Write an Answer
einstein avatar image
0 Likes"
einstein answered
Blu-tack uses a so-called electrostatic interaction, forming a chemical bond between itself and whatever it’s sticking to. It’s made up of very small molecules and, over time, seeps into microscopic indents in the surface of materials. The electrostatic interaction gradually gives way to that molecular ‘seeping’. Hence Blu-tack doesn’t feel sticky initially, but gets stickier if you handle it long enough.
10 |600 characters needed characters left characters exceeded

Up to 8 attachments (including images) can be used with a maximum of 1.0 MiB each and 10.0 MiB total.

Write an Answer

Hint: Notify or tag a user in this post by typing @username.

Up to 10 attachments (including images) can be used with a maximum of 1.0 MiB each and 10.0 MiB total.