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Prep for Sylvan Scale model

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Posted by THOMAS MCHUGH on Sunday, December 20, 2020 2:32 PM

I used a Citrus cleaner I picked up at one of the big box home stores.  Hand painted with Testors enamel, good adhesion but did not care for the brush application.  

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Posted by jjdamnit on Monday, November 30, 2020 3:51 PM

Hello All,

da1
For complete clarity I admit to absolute ZERO previous success with resin parts.

A manufacturer of aftermarket resin shells says...

"Highly recommend cleaning shell before painting with either mineral spirits or lacquer thinner. Use a pan to soak for a short period of time use a small brush or tooth brush (SIC) to brush off inside and outside of (the) shell/part. Just wipe with a towel and let air dry. Do not use a(n) air hose."

***Use nitrile gloves and eye protection while using solvents and dispose of used chemicals properly***

When I painted one of these shells I hadn't read his prep instructions and washed the shell in warm soapy water with Dawn® dish soap and allowed to air-dry.

I used Rust-Oleum® Painters Touch 2X Gloss Black.

This rattle can paint touts it "Bonds To Plastic!"

I used the bain-marie method to warm the can and did several light passes.

Despite this paint being a "Paint+Primer" the fine details of the grills and doors on this shell are still visible.

Hope this helps.

"Uhh...I didn’t know it was 'impossible' I just made it work...sorry"

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Posted by UNCLEBUTCH on Monday, November 30, 2020 10:58 AM

I built a few of thire truck kits. I just wash in Dawn/warm water, air dry.

Then again after its built to paint. I use craft paints,without a primer,both brush and airbrush

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Posted by G Paine on Monday, November 30, 2020 8:57 AM

I have done a few Sylvan kits aS well as other resin kits. Keep in mind that many resin kits have small, delicate parts that are fragile. A light touch is needed for cleaning 

George In Midcoast Maine, 'bout halfway up the Rockland branch 

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Posted by SeeYou190 on Sunday, November 29, 2020 10:30 PM

tstage
I have assembled and painted a few Sylvan kits.  All I used was Ivory dishwashing soap & warm water, a soft toothbrush (for gently scrubbing the surfaces), a warm water rinse, and allow it to thoroughly air dry.  The key is to remove all of the releasing agent from the surface of the resin.  Otherwise, the primer/paint will not adhere well.

I have never built a Sylvan kit, but I have built dozens of resin freight car kits and hundreds of resin gaming miniatures.

There are two concerns I have with prepping these parts.

1) All mold release must be removed and parts must be clean.

2) There must be a "tooth" on the surface for paint to stick to.

For #1, I am sure Zep cleaner will work, so will Dawn, Windex, Ivory Snow, and probably hundreds of other products. I have used all kinds of cleaners and all have worked.

For #2, Not all models require this. Most castings are a little rough, but some are as smooth and shiny as glass, and paint just will not stick to these. If a part is slick and smooth I use CRC Brake And Parts Cleaner on it. This will slightly dissolve the surface, then I dry it quickly with compressed air and let it dry thoroughly.

I love resin kits; This one was a blast!

-Kevin

Living the dream.

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Posted by gmpullman on Sunday, November 29, 2020 7:51 PM

I built (well, I'm half-way there, anyway) the Sylvan Great Lakes Ore boat and I found that a prep cleaning using Simple Green cleaner worked very well to remove the mold release prior to gluing and painting.

YMMV, Cheers, Ed

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Posted by BigDaddy on Sunday, November 29, 2020 7:43 PM

Thanks Tom I did a forum search and it was not on the first page.  It could have been on the 2nd or 20th.

Henry

COB Potomac & Northern

Shenandoah Valley

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Posted by tstage on Sunday, November 29, 2020 7:21 PM

Henry,

I believe this is the link that Dwayne was trying to post:

http://cs.trains.com/mrr/f/88/t/251079.aspx

I copied the words in the 2nd post and pasted it in a Google search...

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

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Posted by tstage on Sunday, November 29, 2020 7:19 PM

Dwayne,

I have assembled and painted a few Sylvan kits.  All I used was Ivory dishwashing soap & warm water, a soft toothbrush (for gently scrubbing the surfaces), a warm water rinse, and allow it to thoroughly air dry.  The key is to remove all of the releasing agent from the surface of the resin.  Otherwise, the primer/paint will not adhere well.

The last time I painted one I used Pollyscale from a jar and a brush.  If I were to do it again I probably would use a rattle can, since I do not presently own an airbrush.  I'm a big fan of Tamiya spraypaint because it goes on thin & evenly and I've never experienced a clogged nozzle.  The thinner paint is also less likely to cover over finer details.

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

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Posted by BigDaddy on Sunday, November 29, 2020 7:14 PM

da1
Ack!!!  The thread I was referring to is here: Preparation for polyurethane resin kit - Model Railroader Magazine - Model Railroading, Model Trains, Reviews, Track Plans, and Forums 

Do you have a better link than that?

Henry

COB Potomac & Northern

Shenandoah Valley

da1
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Posted by da1 on Sunday, November 29, 2020 7:05 PM
da1
  • Member since
    July 2006
  • From: Alberta, Canada
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Prep for Sylvan Scale model
Posted by da1 on Sunday, November 29, 2020 7:04 PM

Hello all.

About to attemp a Sylvan Scale Models vehicle kit and found this thread.

For complete clarity I admit to absolute ZERO previous success with resin parts.  That is based on attempts to paint the windows, doors and foundations in Kanamodel kits.

So, I see that Zep Citrus cleaner is recommended.  Can one of you with experience provide simple step-by-step instructions for using Zep and/or water and/or dish soap to prep these parts for acryllic painting?  Do I scrub the parts with a toothbrush?  Do I rinse with a water and a toothbrush?  Knowing the parts are small and delicate, is Rustoleum rattle-can priming advised?  Should I stick to brush painting, or will accrylic airbrush be okay?

Again, pretend I am a total novice when replying.

Thanks in advance.
Dwayne A

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