Oh, you can take it apart in sections and glue it back together again to form a mold.

7 seconds sound clip from Batman (1966) - Batman Stands Pat (S1E14) TV Series.

You can hear this line at 00:02:52 in the Blu-ray version of the movie.

Quote context

[...]

- A bucket of instant hardening plaster.

- Is Batman permanently plastered?

- Wait, the wildest is yet to come.

- Faster, Marbot, faster.

- But the cement must be chipped very carefully if you want the mold of the Batman's cowl.

- Oh, you can take it apart in sections and glue it back together again to form a mold.

- I will not disfigure my friend, the Batman.

- Oh, Batman, Batman. He couldn't possibly be alive inside that plaster shroud.

- Hey, boss. That means he's won't be needing that Batmobile no more.

- Good thinking. It'll make an excellent getaway car. Go warm it up.

[...]