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I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a couple
days would do that without damaging any of the fine detail. Legit?
I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a couple
days would do that without damaging any of the fine detail. Legit?
I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a couple
days would do that without damaging any of the fine detail. Legit?
I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a couple
days would do that without damaging any of the fine detail. Legit?
On 19/08/2020 20:14, bitrex wrote:
I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a couple
days would do that without damaging any of the fine detail. Legit?
Hard to be sure how it will affect the plastic medium to long term.
ISTR that the low molecular weight alcohols will cause serious stress
corrosion cracking with methanol being the worst by far and ethanol
might be ok or might soften or weaken it.
Some paints cross link on curing so they are no longer soluble in the
medium that they were previously dissolved in as a paint.
Test it on a single sacrificial piece first to see what works best.
On 2020-08-19, bitrex <user@example.net> wrote:
I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a couple
days would do that without damaging any of the fine detail. Legit?
alcohol will attack acrylic, was acrylic paint used?
caustic soda is probalby also worth a try,
acetone is best avoided.
On 19/08/2020 20:14, bitrex wrote:
I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a couple
days would do that without damaging any of the fine detail. Legit?
Hard to be sure how it will affect the plastic medium to long term.
ISTR that the low molecular weight alcohols will cause serious stress
corrosion cracking with methanol being the worst by far and ethanol
might be ok or might soften or weaken it.
Some paints cross link on curing so they are no longer soluble in the
medium that they were previously dissolved in as a paint.
Test it on a single sacrificial piece first to see what works best.
On 8/20/2020 3:33 AM, Martin Brown wrote:
On 19/08/2020 20:14, bitrex wrote:
I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a
couple days would do that without damaging any of the fine detail.
Legit?
Hard to be sure how it will affect the plastic medium to long term.
ISTR that the low molecular weight alcohols will cause serious stress
corrosion cracking with methanol being the worst by far and ethanol
might be ok or might soften or weaken it.
Some paints cross link on curing so they are no longer soluble in the
medium that they were previously dissolved in as a paint.
Test it on a single sacrificial piece first to see what works best.
The isopropyl actually worked really well on my test piece, N scale
heavyweight coach by Rivarossi. Better than I was expecting.
About 8 hours soak and the paint starts sliding right off, a good scrub
with a toothbrush is then enough to take it down to the bare plastic
without much trouble. It\'s not an aggressive stripper tho and doesn\'t
seem to harm the plastic at all.
On 21/08/2020 17:13, bitrex wrote:
On 8/20/2020 3:33 AM, Martin Brown wrote:
On 19/08/2020 20:14, bitrex wrote:
I have some plastic scale models (ABS probably) I want to remove the
factory paint job on; I read soaking in isopropyl alcohol for a
couple days would do that without damaging any of the fine detail.
Legit?
Hard to be sure how it will affect the plastic medium to long term.
ISTR that the low molecular weight alcohols will cause serious stress
corrosion cracking with methanol being the worst by far and ethanol
might be ok or might soften or weaken it.
Some paints cross link on curing so they are no longer soluble in the
medium that they were previously dissolved in as a paint.
Test it on a single sacrificial piece first to see what works best.
The isopropyl actually worked really well on my test piece, N scale
heavyweight coach by Rivarossi. Better than I was expecting.
About 8 hours soak and the paint starts sliding right off, a good
scrub with a toothbrush is then enough to take it down to the bare
plastic without much trouble. It\'s not an aggressive stripper tho and
doesn\'t seem to harm the plastic at all.
Leave it a week or two before you do another one just in case.
I think IPA should be OK so long as there is no methanol in it.
My engines are Hornby OO and and 3.5\" gauge live steam.
On 8/21/2020 12:20 PM, Martin Brown wrote:
On 21/08/2020 17:13, bitrex wrote:
On 8/20/2020 3:33 AM, Martin Brown wrote:
On 19/08/2020 20:14, bitrex wrote:
I have some plastic scale models (ABS probably) I want to remove
the factory paint job on; I read soaking in isopropyl alcohol for a
couple days would do that without damaging any of the fine detail.
Legit?
Hard to be sure how it will affect the plastic medium to long term.
ISTR that the low molecular weight alcohols will cause serious
stress corrosion cracking with methanol being the worst by far and
ethanol might be ok or might soften or weaken it.
Some paints cross link on curing so they are no longer soluble in
the medium that they were previously dissolved in as a paint.
Test it on a single sacrificial piece first to see what works best.
The isopropyl actually worked really well on my test piece, N scale
heavyweight coach by Rivarossi. Better than I was expecting.
About 8 hours soak and the paint starts sliding right off, a good
scrub with a toothbrush is then enough to take it down to the bare
plastic without much trouble. It\'s not an aggressive stripper tho and
doesn\'t seem to harm the plastic at all.
Leave it a week or two before you do another one just in case.
I think IPA should be OK so long as there is no methanol in it.
My engines are Hornby OO and and 3.5\" gauge live steam.
With a little work and some new trucks and details these Model Power
heavyweight coaches:
https://i.ebayimg.com/images/g/rjIAAOSwO5BegTM9/s-l640.jpg
Aren\'t a bad likeness for the New Haven\'s 1930s-era coaches, seen here
awaiting scrapping at Boston South Station in the late 60s sometime,
probably:
https://imgur.com/a/nSbJcjG