Uneven Rub-n-buff on BKBT new armor??

Alright, I thought I did it right. I wet sanded the armor. Used Dupont automotive primer, waited overnight, wet sanded again. Looked & felt really smooth. Hit it with R&B and some parts got shiny and others wouldn't turn out. I almost burned my hand I put so much friction on it. I tried it

An easy Buff Body/Scarf mixed set to celebrate the best armor sets

What Paint Colors? RESOLVED -Now BKBT Build Log, Page 6

Using Rub n Buff on Plastic – THE MANDO WAY

No luck getting an even finish using Rub 'n Buff. Any pro tips

Uneven Rub-n-buff on BKBT new armor??

Rite of passage. Rub n' buff bust : r/3Dprinting

Rub N Buff on metal over Spray Paint #shorts

Anyone else use silver rub n' buff on aluminum?

Problem with Rub N' Buff Boba Fett Costume and Prop Maker

Problem with Rub N' Buff Boba Fett Costume and Prop Maker

I love Rub 'n Buff : r/3Dprinting

How to fix this weird uneven texture on matte top coat? : r/Gunpla

Power Armor Buff (Improved for better balance) at Fallout New