Promos - What Kind of Plastic?

[afx]

What type of plastic are promos made of?

• Is it styrene?
• Does it cut and sand the same as a model kit?
• What glues work?

 

[Ace-Garageguy]

Older ones are acetate. It's cellulose based, and tends to warp and shrink over time, particularly in humid conditions.

Later ones are styrene or ABS, which is a toughened styrene.

Some solvent-glues will work with ABS, and the labels generally tell you. CA and epoxy also work fine.

Old-school tube gloo will kinda stick acetate together, but it's not a strong bond.

CA or epoxy are your best bets for acetate.

Both acetate and ABS work much like styrene as far as cutting and sanding go.

EDIT: LOCTITE 401 is said to work well on acetate where other adhesives have failed. I haven't tried it myself, but the reference was from someone in product prototyping who actually used the stuff. Loctite 401 is a CA specifically developed to stick hard-to-bond materials together.

Edited May 15, 2019 by Ace-Garageguy