How to smooth down our props

superlefax · May 3, 2018, 2:47pm

Hi,

I’m wondering if somebody has a good advice which filler and topcoat we can use for having a nice and smooth PLA prop.

rogjalon · May 3, 2018, 7:31pm

Lots of sanding. Gradually reducing grit size. Then polish with toothpaste for a super smooth finish. I also balanced my prop with an RC prop balancer.
I hope this helps.

Hiorth · May 3, 2018, 7:51pm

Sand then epoxycoat with brush also works well

MaxMaker · May 3, 2018, 7:55pm

I use super cheap automotive primer. It has a powder that fills the gaps well. But its not structural, you need paint and clear coat over it. Easyier than epoxy. It dries in 5 min.

superlefax · May 3, 2018, 8:59pm

Thanks. I have found this one:

https://www.amazon.de/presto-308127-Spritzspachtel-400-ml/dp/B00B2CO1NM

The guys in the reviews are saying that they use it for 3d prints.

charlieuk · May 4, 2018, 7:29am

superglue and activator

MaB · June 10, 2018, 4:25pm

Little sanding, if PLA clean with a rag and Acetone, then 2 layer of epoxy, the second before the first is totally cured. Put the prop first LE down and then LE up to avoid dripping build up only on one side. The next day you can sand it. No need to polish, 800 or 1000 is enought