T-VIRUS wrote:
Hi CS...One question I have for you since you use pc-7 is can it be molded into a shape before it sets up? What I meen is could it be used to form the extra neck and flare on say....darth ugly? I don't know how workable it is.
I've only used it to reinforce the interior of a Rubie's helmet where it's already leaning up against something rigid. I don't know how it will behave just standing alone. You may have to do this in increments if you do not want your application to sag under its own weight.
As opposed to QuikPlastic which has a working time of about 12-15 minutes before it hardens (which, if it does, you can sometimes soften it back up before it cures by using a heat gun), PC-7 has a working time of about an hour, which is definitely useful for patient people but not for impatient people.
The working method is different from a putty. It is categorically a paste, so it's not going to behave like a clay at all until it partly cures.
Also, you really have to watch your curing temperature. They recommend a minumum of 70F and I don't blame them. It's taken 3-4 days even under sunlight for my application to cure because of the blasted cold here, and today it's been 45F.
When it's semi-cured it will start responding a bit more like a clay.
I've not tried this yet, but in theory what you may need to do is get a rigid enough plastic sheet, tape it in place, and wet it (or use denatured alcohol) and apply the paste against that. I've been at Home Depot and found some 3" wide rubber strips. These are to line kitchen walls where the wall meets the floor. They look stiff but they are amazingly flexible and hold their shape pretty well without a heat gun.
So assuming you have a good working temperature, you might be able to just simply put a bunch of putty to extend the neck and let it sit. It can be a rough job. After you've let it cure for 15 minutes, test it to see if it's still pasty. If it is, try again another 5, 10 or 15 minutes later. Again, you have up to an hour. Don't sand it at this point because it's still semi-goopey. If you want to shape it, press it. Wet a soft plastic spreader and press into the application. Even if you don't get your application looking perfect, there's always the sanding option later.
If it holds up under its own weight, and seems to behave more like a clay, then remember the time and approximate thickness and develop a "feel" for how it behaves.
By the way, your avatar isn't showing.