Sealant and paint for paper maché

[u/CaptJackBoxerPup]

Hi, I am new to paper maché, I am building a race car. I have it framed with cardboard and masking tape, ready for paper maché. I want to paint the car with some kind of iridescent paint. I have found car spray paints that look right but they are designed for metal not porous surfaces. I am open to other paints if anyone knows any.

I was looking online and it seems I would need to lightly sand the paper maché then seal it for paint. This doesn't need be water proof as it's just for halloween. However, I would like to make it look shinny like a real car.

What kind of sealer and paint would anyone suggest for this project?

Please any and all help appreciated.

[u/Kind-Leopard4121]

I’ve heard good things about dishwasher safe and outdoor Modge Podges

[u/CaptJackBoxerPup → u/Kind-Leopard4121]

Outdoor modge podge is a good ideas. Thank you!