Removing and Replacing Decals

[SeeYou190]

Lastspikemike

I won't post a photo.

It is kind of tricky. Not everyone can figure it out.

-Kevin

[FRRYKid]

Lastspikemike

Based on my several experiences now removing pad printed lettering I am definitely going to try the low key approach next time, if there is a next time.

Is Solvaset any stronger than Microset or Microsol? There seems to be a terminology confusion between "set" and "sol". I just remember that the blue label is for floating the decals around and the red label ls for melting them down into the nooks and crannies. Microset (blue) floats decals whereas Microsol (red) can destroy. 

Tamiya uses "set" to mean the same as Microscale uses "sol". Confusing to me. 

I haven't used the Solvaset myself (only the Microscale products) but from everything I've read Solvaset is approximately the same strength as the Micro Sol. I haven't read or seen anything on Tamiya's entry into the decal market, so I can't say anything either way.

The Micro Set (blue) can also be used for flat areas when there isn't any need to "melt" around heavy details. It does fine around rivets, etc. But for "heavy" detail as in corrugated passenger car sides, engine grills, etc, Micro Sol (red) after using the blue to position is a good idea.

[wjstix]

Note that virtually all factory pre-decorated models are pad-printed, not decals. Removing the pad printed lettering with Solvaset is easier than removing decals, since as I noted the decal film tends to remain - you remove the ink of the decal, but not the clear film. With a factory-decorated model, you can remove the lettering without a trace with Solvaset and an eraser - and patience.

[doctorwayne]

ChrisVA

Update to all:
I used Micro Sol and a micro brush to remove the decals. No paint damage.

Thanks for all of the tips!

Glad to hear that you've had success, Chris.

I have several Bachmann and Athearn Genesis tenders, most with painted-on lettering.  I'll be using a paint stripper suitable for plastics, but in most cases, I want to remove both the lettering and the paint.
I've bought lots of pre-owned and un-used old-stock freight and passenger car kits, and have stripped pretty well all of them.  That allows me to modify them with better or more correct details, and then re-letter them to represent, in many cases, specific prototypes.

Wayne

[doctorwayne]

Lastspikemike

Acetone is lacquer thinner.

Acetone is an ingredient in lacquer thinner, but itself is not lacquer thinner.  Acetone evapourates much more quickly than lacquer thinner.

At one time, lacquer thinner was a very suitable and effective choice as a bonding agent for styrene, but government regulations, (at least in Canada) bastardised the formula by removing some unstated component.  It will still work as a paint thinner, but is useless for bonding styrene.

I recently learned, though, that proper lacquer thinner is still available (at a higher cost, of course).  I'm guessing that nowadays it's meant for specific types of paint, either new ones, or some particular traditional ones. 
It is also suitable for gluing styrene, which means that once my rapid-evapourating MEK is used-up, I can use a less volatile product for plastic kits and scratchbuilds.

Wayne

[SeeYou190]

maxman

Hey, I have one of those cars somewhere!

The ALP car is one of the better in the NMRA "Heritage Line" of freight cars.

The one I bought (in the picture) was damaged where the previous owner tried to change the car number. I tried to fix it, and made it worse. The solution was to add the green stripe and new numbers.

-Kevin

[maxman]

SeeYou190

-Kevin

Hey, I have one of those cars somewhere!

[SeeYou190]

ChrisVA

I used Micro Sol and a micro brush to remove the decals. No paint damage.

                    

Great to hear you had success. You are fortunate the previous owner did not put too much effort into setting and sealing the decals.

-Kevin

[ChrisVA]

Update to all:
I used Micro Sol and a micro brush to remove the decals. No paint damage.

Thanks for all of the tips!

 

[SeeYou190]

Well, that isn't going to happen any time soon.

However, lucky for you, posting pictures is actually very easy. There is a sticky at the top of the page that has information to help you figure it out. I am sure that with a little help you can get it done. Your responses will be so much more useful with pictures of your accomplishments.

You can do it.

-Kevin

[mreagant]

I've posted before to a similar question that I've had good success removing print stamped factory lettering,ect using only a pencil eraser. Working very slowly and carefully it will all come off. 

I've never tried this method on decals, but it might be worth a try since it avoids the sometime risky business of solvent type products.

I once tried 91 percent isopropyl alcohol and it ate off paint down to the plastic. The result actually worked for that particular purpose, but it made me wary of such procedures.

Mike Thomasson

[SeeYou190]

Lastspikemike

I have actually removed decals several times now.

Would you share some pictures of your results with the group please?

-Kevin

[SeeYou190]

doctorwayne

On older models, I've had good success using methyl hydrate (available in hardware and home improvement stores).  If you use it, wear nitrile gloves, as it's readily absorbed through the skin, and can create some serious health issues.   Another option is Super Clean, which seems to work well on many paints, as does 99% alcohol, available at pharmacies.

wjstix

In my experience, removing the lettering from a decal isn't that hard using Solvaset etc., but the decal film seems to remain no matter what. If you're re-decaling in the same areas it's not a big deal, but it can be noticeable that there is a 'ghost' of decal film on the car or engine.

FRRYKid

The trick I use is the already mentioned Micro Sol, a paint brush, a pencil eraser and patience. I have relettered/redone enough cars that I have gotten very good at it. Every once in a while, it removes paint but not very often and I've gotten good enough that I can usually mix up paint to match.

These three responses, from fellow modelers that have actually removed decals, are great information.

I will only add that "Daco Strong" works much better than "Solavaset" for removing decals. Unfortunately, Daco Strong is very hard to find in the USA. I order mine from hobby shops in Europe.

-Kevin

[FRRYKid]

The trick I use is the already mentioned Micro Sol, a paint brush, a pencil eraser and patience. I have relettered/redone enough cars that I have gotten very good at it. Every once in a while, it removes paint but not very often and I've gotten good enough that I can usually mix up paint to match.

[John-NYBW]

In my past life I work for the State Auditor of Ohio and was responsible for the computer warrant (check) writing system. One of the things I learned was that a favorite trick of forgerers is to soak blank checks in brake fluid and allow them to dry before passing them as bad checks. Within 24 four hours, they will disintegrate into dust, thus destroying the evidence. With our warrants, rather than write forgeries, they would alter the amounts. One of our guys wrote a routine that would spell out the amount on the welfare recipient warrants making it more difficult. 

[wjstix]

In my experience, removing the lettering from a decal isn't that hard using Solvaset etc., but the decal film seems to remain no matter what. If you're re-decaling in the same areas it's not a big deal, but it can be noticeable that there is a 'ghost' of decal film on the car or engine.

[doctorwayne]

If the decals won't come off using soap and water, it's very likely that they've been over-sprayed with a clear finish.  That means that your best option is to use a paint stripper .  Remove the trucks and couplers, along with the underbody, if there is one.

 

Do not use brake fluid as a stripper - while it does work well on some plastics, it may also completely destroy models made from other plastics.  (I once stripped an Atlas diesel using brake fluid, and it was unrecognisable as such after only 15 minutes in the stripper.)

 

On older models, I've had good success using methyl hydrate (available in hardware and home improvement stores).  If you use it, wear nitrile gloves, as it's readily absorbed through the skin, and can create some serious health issues.

 

Another option is Super Clean, which seems to work well on many paints, as does 99% alcohol, available at pharmacies.

 

Lastspikemike

The normal thinner for lacquer is acetone which is a very aggressive multi purpose solvent.

 

Oddly enough, the proper thinner for lacquer is lacquer thinner, not acetone.  Do not use either of these products for paint stripping of plastic models.  They'll work fine on metal, but will destroy plastic.

Wayne

[rrebell]

Sometimes the decals are oversprayed, then they become very hard to get rid of.

[John-NYBW]

There are a number of solvents that will soften and loosen existing decals without damaging the paint. I use Micro-Sol. There are other brands but I can't think of their names off the top of my head.

Amazon.com: Micro Sol Microscale BMF128 Setting Solution MSSOL : Health & Household

A light application of Micro Sol can be used to soften decals during application to get the decal to lay flat on irregular surfaces, such as those with rivets. Using a heavier dose can help remove existing decals. 

I believe the Microscale decals are dry transfers but I'm not sure. They will tend to flake off if a piece is frequently handled so I would use some sort of clear spray over them to give them a protective coat. 

[ChrisVA]

I got this tender on eBay with this decal on both sides. What is best way to remove this with minimal damage to tender/paint?

Are the decals a good choice for replacing them?

http://www.microscale.com/Merchant2/merchant.mvc?Session_ID=1d587d8d229c2bfca87ff2f86562cc3e&Screen=PROD&Product_Code=87-118&Store_Code=MD&search=northern+pacific&offset=&filter_cat=&PowerSearch_Begin_Only=&sort=&range_low=&range_high=

Thanks!