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AFV Painting & Weathering
Answers to questions about the right paint scheme or tips for the right effect.
Plastic cement and primer
Namerifrats
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North Carolina, United States
Joined: May 26, 2014
KitMaker: 75 posts
Armorama: 60 posts
Posted: Friday, June 30, 2017 - 08:22 PM UTC
Wasn't thinking and didn't mask the mounted pegs on the suspension bars. Painting the wheels separate, so they were left off while I primered the main body of the tank. I did think to put small pieces of paper towel in the mounting hoke on the wheels to keep primer out. I will mask the pegs before applying the base coat. Just wondering if I need to clean some of the primer off the pegs before mounting the wheels, or would the cement (Tamiya extra thin) be able to penetrate it enough to melt the plastic?
urumomo
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Texas, United States
Joined: August 22, 2013
KitMaker: 675 posts
Armorama: 667 posts
Posted: Friday, June 30, 2017 - 09:24 PM UTC
what kinda primer ?

Regardless - if the wheel will go on , the cement will make enough of a sticky bond thru the dissolution of the wheel styrene for a static model .
Don't rely on it at highway speeds

Lakota
#123
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New Mexico, United States
Joined: November 17, 2008
KitMaker: 1,202 posts
Armorama: 635 posts
Posted: Friday, June 30, 2017 - 10:56 PM UTC
Howdy Y'all
I've made the same mistake and didn't catch it until after I painted the parts. I used CA glue, sort of worked...
If you are in the primer stage I would go ahead and try the plastic cement. Somethings gotta give. Are you able to sand some surfaces?
Good luck,
Don "Lakota"
Armorsmith
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Pennsylvania, United States
Joined: April 09, 2015
KitMaker: 1,063 posts
Armorama: 1,000 posts
Posted: Friday, June 30, 2017 - 11:23 PM UTC
General rule is that parts to be cemented should be free of any paint or primer. Having said that I regularly violate that rule. However, one of the key areas of an AFV are the tracks and running gear. To ensure the strongest bond and proper alignment this is one area when I follow the general rule of plastic to plastic for best results.
Namerifrats
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North Carolina, United States
Joined: May 26, 2014
KitMaker: 75 posts
Armorama: 60 posts
Posted: Saturday, July 01, 2017 - 12:16 AM UTC
Tamiya spray primer. I can likely clean some of it off. 1/35 scale, so I have access. Just be a time consuming process. Thinking it would also be a process taping each peg in the future for masking. I may try to make some small re-useable "covers" out of styrene tube for the paint job and future tanks. As for removing the primer now, I think I may try lightly scrapping some of it off with an Xacto blade.
urumomo
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Texas, United States
Joined: August 22, 2013
KitMaker: 675 posts
Armorama: 667 posts
Posted: Saturday, July 01, 2017 - 12:22 AM UTC
that's lacquer base primer so the acetone in the cement will dissolve the primer - , more than enough
brekinapez
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Georgia, United States
Joined: July 26, 2013
KitMaker: 2,272 posts
Armorama: 1,860 posts
Posted: Saturday, July 01, 2017 - 12:40 AM UTC
If I painted it with Tamiya, then I don't worry about masking. Their extra thin cement seems to go right through it.
Namerifrats
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North Carolina, United States
Joined: May 26, 2014
KitMaker: 75 posts
Armorama: 60 posts
Posted: Saturday, July 01, 2017 - 07:14 AM UTC
Good info. May glue one on and see how well it holds. I'll definitely mask the pegs off before I paint a base coat though.
varanusk
Staff MemberManaging Editor
ARMORAMA
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Santa Cruz de Tenerife, Spain / Espaņa
Joined: July 04, 2013
KitMaker: 1,288 posts
Armorama: 942 posts
Posted: Saturday, July 01, 2017 - 09:57 PM UTC
Maybe alcohol can clean the primer.

For masking, try liquid mask (Vallejo, Maskol, etc) which is easier and faster than tape.
AgentG
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Nevada, United States
Joined: December 21, 2008
KitMaker: 1,109 posts
Armorama: 1,095 posts
Posted: Sunday, July 02, 2017 - 09:47 AM UTC
Dip a QTip in lacquer thinner and use that to take the paint off the post.

G
Namerifrats
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North Carolina, United States
Joined: May 26, 2014
KitMaker: 75 posts
Armorama: 60 posts
Posted: Sunday, July 02, 2017 - 05:00 PM UTC
I'll try that, thanks!
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