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Post by cpr4200 on Mar 26, 2023 11:46:47 GMT -8
I also have had good luck with alcohol, but it is in short supply my local CVS these days. Ace hardware has 99.9% alcohol, Lowes and HD probably do, too:
I've been using 91% that I found in the Target pharmacy dept.
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Post by Baikal on Mar 26, 2023 12:03:47 GMT -8
Following up on this thread - a Kaslo boxcar that I painted a number of years ago has begun to chip in a number of places. I'd like to strip the resin and repaint it - what would be the best solution for this task? Simple Green? DO NOT put that Kaslo car in 91% ISO! I used a kasha cab for a CN Dash 9 and had problems with the paint while drying, noticed a big run or something come up. Per usual I put it in my stripping container with 91% Iso. When I retrieved it the next day the cab was ruined. The resin deformed in the Iso. Talking with the person I bought the cab from(don't remember the name of the store) I was told that the resin Kaslo uses does not like 91% Iso. It was also at this time I found that using Tamiya fine surface primer worked best on Kaslo models. Don't remember if I used a primer the first time or not. Hope this helps!
Good to know- no alcohol for Kaslo.
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Post by onequiknova on Mar 26, 2023 13:40:16 GMT -8
Not just Kaslo, I wouldn't use alcohol on any resin casting. I had a similar experience with some resin vehicles.
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Post by loco8107 on Mar 27, 2023 13:16:02 GMT -8
It's always interesting to revisit the topic of stripping model paint. I'm with Craig Z. that if it can't be stripped with 91%, I'm not going to mess with it. That's what still makes undecorated models so valuable to me (but "they don't sell," as many people will still tell you). ExactRail and Broadway Limited paint have proved to be very resistant to 91% alcohol, in my experience. I tried to strip the paint of the trucks of an early ExactRail model (the SP PC&F 6033), and the paint just turned sort of gummy and stuck in place. One of their Thrall gons stripped about halfway, leaving areas around the side ribs and underframe that were still black, feathering away to areas of bare plastic in between. A Broadway N&W H2a hopper just kind of laughed at the alcohol. The paint pealed off the metal parts, but it stuck to the plastic virtually untouched. I attempted to strip it and the ExactRail gon with a grit blaster with some success, but neither came out completely clean. I think they have plenty of texture for the new paint job to adhere to though! A Walthers Mainline 60' Pullman-Standard flat car (black EJ&E scheme) that I just stripped to turn into a Trailer Train flat worked pretty well, but the paint clung to the metal underframe in spots almost like a thin shell that can be chipped away. I may try a small wire brush to scrape the remnants off, because it's proving pretty tedious to scrape off with a Xacto blade. Timothy, if you're looking for a replacement, I have an undecorated Walthers F40PH that I can let go. Just have to find it somewhere in all these moving boxes... Dave I don’t necessarily buy the “they don’t sell” line. They’re always hard to get and a lot of us would rather have an undec than strip. Even in todays market, a lot of us still do our own painting/decaling and I don’t see that changing anytime in the foreseeable future.
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Post by simulatortrain on Mar 27, 2023 14:11:02 GMT -8
I also have had good luck with alcohol, but it is in short supply my local CVS these days. Ace hardware has 99.9% alcohol, Lowes and HD probably do, too:
I've been using 91% that I found in the Target pharmacy dept.
Not at all implying what you said is incorrect. I just find it curious that none of the 15 or so hardware stores I've checked for isopropyl in PA and MD have even heard of a hardware store carrying it. Normally I find regional differences interesting, but this one is aggravating.
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Post by Baikal on Mar 27, 2023 15:05:37 GMT -8
Ace hardware has 99.9% alcohol, Lowes and HD probably do, too:
I've been using 91% that I found in the Target pharmacy dept.
Not at all implying what you said is incorrect. I just find it curious that none of the 15 or so hardware stores I've checked for isopropyl in PA and MD have even heard of a hardware store carrying it. Normally I find regional differences interesting, but this one is aggravating.
Hardware stores aren't going to carry isopropyl alcohol. It's the kind of alcohol found in medical "rubbing alcohol".
They will have 99% "denatured alcohol" which is ethyl alcohol (aka booze when big taxes are applied) that's been made non-tasty by adding vomiting agents or other poisons. Used for thinning real shellac I think.
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Post by kentuckysouthernrwy on Mar 27, 2023 15:06:19 GMT -8
Bought 91% ipa at a Walgreens in mid Michigan yesterday.
I found in the past using brake fluid that it seemed to make the plastic more brittle.
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Post by valenciajim on Mar 27, 2023 18:09:39 GMT -8
I also have had good luck with alcohol, but it is in short supply my local CVS these days. Ace hardware has 99.9% alcohol, Lowes and HD probably do, too:
I've been using 91% that I found in the Target pharmacy dept.
Thanks. I posted this in July 2020 when alcohol was in short supply because of the pandemic.
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Post by edwardsutorik on Mar 27, 2023 19:03:59 GMT -8
Amazon sells 99% isopropyl alcohol.
An open container of 99% alcohol will absorb water out of the air and stabilize at about 96%. 91% will not go in the other direction.
Ed
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Post by protofrtcar on Mar 27, 2023 21:07:25 GMT -8
It's always interesting to revisit the topic of stripping model paint. I'm with Craig Z. that if it can't be stripped with 91%, I'm not going to mess with it. That's what still makes undecorated models so valuable to me (but "they don't sell," as many people will still tell you). ExactRail and Broadway Limited paint have proved to be very resistant to 91% alcohol, in my experience. I tried to strip the paint of the trucks of an early ExactRail model (the SP PC&F 6033), and the paint just turned sort of gummy and stuck in place. One of their Thrall gons stripped about halfway, leaving areas around the side ribs and underframe that were still black, feathering away to areas of bare plastic in between. A Broadway N&W H2a hopper just kind of laughed at the alcohol. The paint pealed off the metal parts, but it stuck to the plastic virtually untouched. I attempted to strip it and the ExactRail gon with a grit blaster with some success, but neither came out completely clean. I think they have plenty of texture for the new paint job to adhere to though! A Walthers Mainline 60' Pullman-Standard flat car (black EJ&E scheme) that I just stripped to turn into a Trailer Train flat worked pretty well, but the paint clung to the metal underframe in spots almost like a thin shell that can be chipped away. I may try a small wire brush to scrape the remnants off, because it's proving pretty tedious to scrape off with a Xacto blade. Timothy, if you're looking for a replacement, I have an undecorated Walthers F40PH that I can let go. Just have to find it somewhere in all these moving boxes... Dave I don’t necessarily buy the “they don’t sell” line. They’re always hard to get and a lot of us would rather have an undec than strip. Even in todays market, a lot of us still do our own painting/decaling and I don’t see that changing anytime in the foreseeable future. I certainly don't buy the "undecorated does not sell" because if they don't stock it how will they ever know if it sells or not!!!! Almost impossible to find hobby shops with undecs. Even online sellers now are the same. Most manufactures have stopped making undecs, Athearn, Rapido, Atlas, Exactrail to some extent. Kudos to Tangent and Moloco as being the only few left that produce and sell undecs.
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Post by lvrr325 on Mar 27, 2023 22:29:26 GMT -8
Atlas has always offered undec on the engines and some of the cars. I occasionally pick them up because depending on what it is, they will sell. On the other hand there's a few undecs my distributor has had for ages, a couple different kinds of containers and I forget what else, those apparently do not sell.
I used to use Scalecoat's paint stripper, used it for ages, had an AHM GG1 shell in it and it warped one end of it.
I still have yet to try to do any more with that brass Pennsy commuter car. Floquil whatever was in it, is some tough stuff, I kind of wish I could paint a car with it and see how it would hold up.
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Post by drolsen on Mar 28, 2023 4:00:05 GMT -8
I don’t necessarily buy the “they don’t sell” line. They’re always hard to get and a lot of us would rather have an undec than strip. Even in todays market, a lot of us still do our own painting/decaling and I don’t see that changing anytime in the foreseeable future. That was said tongue-in-cheek as a long-running joke among many prototype modelers that some manufacturers continue to use that phrase when we ask for undecs. I have to acknowledge that they don’t sell in the quantities that decorated cars do, but I like the approach that Atlas, ExactRail, and a few others take of offering undecs in their first run (which sell out almost immediately) and then periodically offering them again. Of course, I also love how Tangent and Moloco make them available as regular parts of their product lines. Dave
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Post by trainguy99 on Mar 28, 2023 4:35:03 GMT -8
Starting a few years ago, Walthers offers many of their newer models undecorated.
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Post by simulatortrain on Mar 28, 2023 6:18:46 GMT -8
Not at all implying what you said is incorrect. I just find it curious that none of the 15 or so hardware stores I've checked for isopropyl in PA and MD have even heard of a hardware store carrying it. Normally I find regional differences interesting, but this one is aggravating.
Hardware stores aren't going to carry isopropyl alcohol. It's the kind of alcohol found in medical "rubbing alcohol".
They will have 99% "denatured alcohol" which is ethyl alcohol (aka booze when big taxes are applied) that's been made non-tasty by adding vomiting agents or other poisons. Used for thinning real shellac I think.
I've bought that at hardware stores, but my friends in Washington and Illinois buy isopropyl by the gallon at the hardware store.
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Post by loco8107 on Mar 28, 2023 6:42:44 GMT -8
I don’t necessarily buy the “they don’t sell” line. They’re always hard to get and a lot of us would rather have an undec than strip. Even in todays market, a lot of us still do our own painting/decaling and I don’t see that changing anytime in the foreseeable future. That was said tongue-in-cheek as a long-running joke among many prototype modelers that some manufacturers continue to use that phrase when we ask for undecs. I have to acknowledge that they don’t sell in the quantities that decorated cars do, but I like the approach that Atlas, ExactRail, and a few others take of offering undecs in their first run (which sell out almost immediately) and then periodically offering them again. Of course, I also love how Tangent and Moloco make them available as regular parts of their product lines. Dave Understood and I was also referring to what the manufacturers have told us over the years.
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Post by cemr5396 on Mar 28, 2023 9:24:09 GMT -8
the undecs scenario is kind of a chicken and egg situation.
Are the sales numbers for undecs bad because very few are produced, or is the reason few are produced because of the bad sales?
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