Re: Steampunk Ironman Helmet WIP - Set Backs & Nose Jobs
So, this morning prior to church I sanded the rough nose area and hit it with a coat of fiberglass resin. I also re-enforced the inside of the nose with some t-shirt material and more resin.
From there, it got it's first coat of bondo...
After that I had some time, so I started to work on some areas that needed to filled with my finishing or glazing putty. AGAIN, I ran into cracking in several places! :angry
At that point I used a 'life-line' and choose to 'phone a friend.' In this case it is someone with a LOT of professional prop-making experience and quickly isolated my problem!
Turns out the finishing putty I've been using is for VERY small scratches or tiny dings. It's NOT designed to be used at any real thickness - or it cracks (as it shrinks over time). He suggested 'flow-able putty' which is self-leveling and a joy to sand (sounds wonderful, eh?)... except it's only sold in specialty auto paint shops (and I don't have access to them today). Guess I get to just use the supply of basic bondo I have. Well, heck... :facepalm
After some scrapping, sanding and crying I had the thick areas reduced back down to the 'real' bondo and primer.
Now, another suggestion my friend offered was a GREAT way to not waste much bondo as you work. Simply layout: the bondo and hardener on separate sides of a mixing matte. Then, as you need a bit of bondo, you just take a small amount of bondo and a touch of hardener into the middle of the matte and mix it just before applying it. In this way, the bondo that is unused, doesn't harden and can even been replaced into it's original container when you're done.
I used this method for all of my last coat of bondo for the day. Here's my set up:
So, after sanding down the first coat of bondo on the nose, I started up another round of basic bondo application.
nose after sanding - prior to 2nd bondo application:
2nd bondo application (front):
That's what I've gotten done today.