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Model Railroading > Painting Delrin Handrails


Date: 06/14/21 08:36
Painting Delrin Handrails
Author: NYSWSD70M

Is there any new technology or method(s) to use to paint Delrin handrails?



Edited 2 time(s). Last edit at 06/14/21 13:33 by NYSWSD70M.



Date: 06/14/21 10:02
Re: Painting Delron Handrails
Author: fbe

Radio control car owners have highly adhesive paint for their clear lexan carbodies. This seems to work well for flexible surfaces. Pactra is one brand.



Date: 06/14/21 10:03
Re: Painting Delron Handrails
Author: PHall

Nope, just the same old tried and true ones. Either grit blast them first to give the paint something to hold on to or use one of the "adheision promoters" they use on radio controlled cars.



Date: 06/14/21 10:07
Re: Painting Delron Handrails
Author: grahamline

I assume you mean Delrin,  Some southern Californians refer to it as "Durlin."  If you aren't up to sandblasting, a wash in warm soapy water and a good rinse help with adhesion.  Some does a light spray of a good primer like Tamiya's.



Date: 06/14/21 13:29
Re: Painting Delron Handrails
Author: tehachapifan

Delrin....talk about something to have a love/hate relationship with.



Date: 06/14/21 13:32
Re: Painting Delron Handrails
Author: NYSWSD70M

grahamline Wrote:
-------------------------------------------------------
> I assume you mean Delrin,  Some southern
> Californians refer to it as "Durlin."  If you
> aren't up to sandblasting, a wash in warm soapy
> water and a good rinse help with adhesion.  Some
> does a light spray of a good primer like Tamiya's.

Thanks, I'll correct.



Edited 1 time(s). Last edit at 06/14/21 19:04 by NYSWSD70M.



Date: 06/14/21 14:02
Re: Painting Delron Handrails
Author: randgust

I tried adhesion promoter on some N scale Atlas S2 handrails (first time attempt) with Badger and it worked miracles.   I was sold.



Date: 06/14/21 14:16
Re: Painting Delron Handrails
Author: dmaffei

Yup, best to grit blast with aluminum oxide. then paint will bite 



Date: 06/14/21 16:25
Re: Painting Delron Handrails
Author: wabash2800

I use a cheap Soda blaster from Harbor Freight with baking soda with great success. I don't have a paint booth, so do it outside hooked up to my compresor.  I spray into a cardboard box to catch the baking soda.

Victor



Date: 06/14/21 16:59
Re: Painting Delrin Handrails
Author: csx4793

I swear by a soda blast followed by duplicolor adhesion promoter you'd find at the auto parts store, I've been able to bend and somewhat twist my handrails without any sort of flaking of the paint.



Date: 06/14/21 17:08
Re: Painting Delron Handrails
Author: JUTower

I've had very good luck with the adhesion promoter in spray cans.  It's expensive and very stinky (fumes) but extremely effective at solving this problem with the shiny/engineering plastic/flexible handrails.



Date: 06/14/21 18:27
Re: Painting Delron Handrails
Author: chitownjeff

I'll concer with the use of adhesion promoter, works great, but it has a very nasty smell, I sprayed it in the basement once and thought I was going to poison the whole family up stairs.
Even with a paint booth with a outside venting I will not spray inside, only outdoors even in the middle of winter.

Jeff



Date: 06/16/21 06:51
Re: Painting Delron Handrails
Author: jburek

I've had great success with automotive adhesion promoter.  Don't have an issue with the smell - do use a spray booth that vents outdoors.



Date: 06/16/21 07:41
Re: Painting Delron Handrails
Author: BAB

grahamline Wrote:
-------------------------------------------------------
> I assume you mean Delrin,  Some southern
> Californians refer to it as "Durlin."  If you
> aren't up to sandblasting, a wash in warm soapy
> water and a good rinse help with adhesion.  Some
> does a light spray of a good primer like Tamiya's.
 Tried theres and two other brands of primer dont like the way it adhears or sands. I use Krylon primer.



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