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Oldskool62

Resin Body Repairs

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Hi All 

Yesterday I received my LJ Torana & HQ Monaro resin bodies. 

Today I started giving them the once over and noticed on both that they need a fair bit of work. Areas like around the windows need to be built up and straightened.

I was thinking about using something like JB Weld or a similar epoxy. Or is tamiya putty ok?

Help will be greatly appreciated. This is my first build.

 

 

 

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Hi OS-62, 

I do things a little different from many in this forum - I like to reinforce any delicate parts by adding brass rod into them... or behind them.

No putty that I am aware of is going to take the pounding and rigors of slot racing and marshall handling if used as B pillars or even 1/4 vents..... maybe, if they are heavily fortified by glazing... but, if the windows are open - the putty will simply crack and fall out.

 

I have used Milliput, and have now shied away from it..... no offence intended to those who suggest it.

I am about to test a Tamiya product I have not yet used... but have purchased some for upcoming work..... Tamiya epoxy putty - quick version (although they recommend 24 hours curing before working).. it's expensive, but if it does the trick - I am happy to pay.

I bought the large box, which has five strips each of the two components.... there will be plenty for my modeling for quite some time before I need to go fetch any more.

 

My issue with Milliput, is that it went hard on me... and nothing I could do or mix with it (mainly water, but tried a number of differing products) returned it to a workable mix..... the last batch I mixed up with the best of what could be recovered - took nearly four days to cure out, but fell apart when I tried to drill it.... 

Admittedly, it was 2 years old... but it was kept well sealed in the plastic wrapping... it just went "off".

I will report on Tamiya epoxy putty when I come up in need of using it... 

 

To answer your original question - I'd go with fitting brass rod reinforcing and wrap putty around that - let it fully cure out and work it down to shape.

I have had success doing this with the moved 1/4 vent frame on the little LJ I'm working on.. and use this method repeatedly in model railways... 

 

frats,

Rosco

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Hi Oldskool62.

I have used 2 pot resin/epoxy with plenty of glue powder added. Good if you need to sand back. If filling holes/or cracks the same with shrink wrap pressed over it produces a smooth surface but try to not overfill. Good for repairing surf boards and boat hulls too.

Regards Chas Le Breton (charlesx)

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18 hours ago, charlesx said:

Hi Oldskool62.

I have used 2 pot resin/epoxy with plenty of glue powder added. Good if you need to sand back. If filling holes/or cracks the same with shrink wrap pressed over it produces a smooth surface but try to not overfill. Good for repairing surf boards and boat hulls too.

Regards Chas Le Breton (charlesx)

Hey Chas thanks for this. 

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Hi again.

You may be able to use some of the modern sandible filler but with epoxy you are basically applying a very similar product and I have used for years with no problem. 

Good luck. Chas Le B

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On 1/16/2021 at 11:57 AM, Garry J said:

Milliput

@Garry Jwent to buy some yesterday at a hobby shop and he didn't stock it. Only had tamiya  putty which I was going to get for doing some fine dent :) repairs. However I still have to get some.

On 1/17/2021 at 6:42 PM, charlesx said:

Hi Oldskool62.

I have used 2 pot resin/epoxy with plenty of glue powder added. Good if you need to sand back. If filling holes/or cracks the same with shrink wrap pressed over it produces a smooth surface but try to not overfill. Good for repairing surf boards and boat hulls too.

Regards Chas Le Breton (charlesx)

@charlesx What brand of 2 pot resin/epoxy? Also what is the glue powder?

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On 1/17/2021 at 5:21 PM, rosco01 said:

Hi OS-62, 

I do things a little different from many in this forum - I like to reinforce any delicate parts by adding brass rod into them... or behind them.

No putty that I am aware of is going to take the pounding and rigors of slot racing and marshall handling if used as B pillars or even 1/4 vents..... maybe, if they are heavily fortified by glazing... but, if the windows are open - the putty will simply crack and fall out.

 

I have used Milliput, and have now shied away from it..... no offence intended to those who suggest it.

I am about to test a Tamiya product I have not yet used... but have purchased some for upcoming work..... Tamiya epoxy putty - quick version (although they recommend 24 hours curing before working).. it's expensive, but if it does the trick - I am happy to pay.

I bought the large box, which has five strips each of the two components.... there will be plenty for my modeling for quite some time before I need to go fetch any more.

 

My issue with Milliput, is that it went hard on me... and nothing I could do or mix with it (mainly water, but tried a number of differing products) returned it to a workable mix..... the last batch I mixed up with the best of what could be recovered - took nearly four days to cure out, but fell apart when I tried to drill it.... 

Admittedly, it was 2 years old... but it was kept well sealed in the plastic wrapping... it just went "off".

I will report on Tamiya epoxy putty when I come up in need of using it... 

 

To answer your original question - I'd go with fitting brass rod reinforcing and wrap putty around that - let it fully cure out and work it down to shape.

I have had success doing this with the moved 1/4 vent frame on the little LJ I'm working on.. and use this method repeatedly in model railways... 

 

frats,

Rosco

@rosco01Bought some of the Tamiya product yesterday.

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