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Working with resin

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  • Member since
    September, 2008
Working with resin
Posted by Lil Rebel on Tuesday, July 02, 2019 5:00 AM

Here I am again, asking for help. Just ordered my first resin model,a 1956 Oldsmobile  Super 88, that I am going to build into a copy of the one I used to own. I've nevered worked with resin, so I need help, from start to finish, as I understand it's different than styrene, and there are safty concerns.       Thanks for any help!

                                                                             Mike

  • Member since
    November, 2013
Posted by Daddy_O on Tuesday, July 02, 2019 7:28 AM

Hey Mike, I'm no expert but I've built a couple...and tossed  couple.

Yes, resin is totally different from styrene. First of all, you can't use model glue. You either have to use CA (superglue), or epoxy I use mostly superglue and only epoxy for major repairs like a broken part. Other guys may have another point of view.

Resin dust is a health hazard, so when sanding or filing you really need a dust mask. Don't let the dust build up too much on the table. Use a dampt paper towel every now and then to keep the table clean.

Speaking of sanding and filing, I suggest investing in a set of needle files. They are invaluable when working w/resin. A large flat file is useful as well.

You will often have voids in the surface of resin kits where air was trapped in the mould. Small ones can be filled with gap-filling CA glue (I just use Gorilla gel). Large ones may require putty. I suggest a two-part putty that won't shrink. I won't suggest any there because doing so would bring out the folks who want to argue about which putty is best.

Washing resin parts is essential to remove the mold release agent, which is usually petroleum-based. I just use Dawn dishwashing liquid, but I've heard some folks use other agents.

Fitting parts beforehand is essential as well. Resin parts usually have more flash, and are not as flat as styrene, so prefit is crucial. You may also find some parts aren't flat, or are too flat, like the hood. Hot water and careful bending will make it right. I've found that using a surface with the shape you want helps a lot.

I suggest going on YouTube and checking out some vids. Most of what I've found in the past were for wargaming resin figures, but there is good info there. I've only found a couple of vids on model car resin parts, and none focus on the body.

I suggest you get the kit, check things out and then ask specific questions from the group. I think you will get more support. G'luck, and I'm anxious to see your kit.

  • Member since
    September, 2008
Posted by Lil Rebel on Tuesday, July 02, 2019 2:44 PM

Thanks, I guess I've heard some of the info but as I've never planed to do resin I just let it go in one ear and out the other.(no blockage there) Thanks so much. If this thing comes out looking better than my first model some 50+ years ago, I'll post or try to post it. Again thanks for taking your time to give me help.

  • Member since
    January, 2005
  • From: Canberra, Australia
Posted by aussiemuscle308 on Wednesday, July 03, 2019 2:31 AM
Daddy_0 is right on the money. i've built a few resin kits and they aren't a lot harder than a styrene kit, so don't fret, just work through it carefully and you'll have a great replica.

My Flickr: https://www.flickr.com/photos/87459383@N07/albums

  • Member since
    January, 2013
  • From: Sugar Land, Texas, USA
Posted by VintageRPM on Thursday, July 04, 2019 7:31 AM

Something else you will have to do is spray a lacquer primer on the model before any color coats. Most paints won't stick to the resin. Automotive brands and Tamiya are probably the most readily available primers, but there are others.

  • Member since
    September, 2008
Posted by Lil Rebel on Thursday, July 04, 2019 3:00 PM

Thanks to everyone, I first thought I was dumb because I new I'd heard and knew all there was to know. Not so. I am so glad now that I asked. This is going to be the most important model I've ever built. I was given the real thing by my uncle for my 16th birthday and I drove it for over 15 years. He gone now and so is the 56 Olds. You guys have given me a gift you will never understand. Thanks again so much.

                                                                          Mike

  • Member since
    November, 2013
Posted by Daddy_O on Monday, July 08, 2019 6:19 AM

Good catch regarding the primer!

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