Walt replied to this thread where I had talked about using truck bed liner as a cover. He asked about its burn rate and melting point. He referred to alcohol dribbles burning on such products and I told him that I had seen small amounts of alcohol burn with no problem. I have since tested using a larger spill that would take longer for the alcohol to burn off. I found that if the alcohol burned long enough on a spot it could start to melt the speedliner (product I used) under it and then start to burn. Info on specific technical data on speedliner can be found at www.speedliner.com The manufacturer is Industrial Polymers Corporation and can be reached by phone at 800-766-3832 and there main distributor is Bearcat industries and can be reached at 800-821-8820. I would hope that between the web site and the phone numbers given you could find actual burn and boil points of this product. Good luck and have a safe and happy New Year...............Steve
At 10:51 PM 12/30/2001 -0800, you wrote: >Has anyone done a survey of alternate construction techniques and >materials for an elevated live steam track? I'm doing the planning for >one of my own and would like to learn from other's experiences. > >In recent visits to steam ups I've seen the following variations: > >Uprights: > a. Steel pipe, > b. 4x4 wood posts, > c. plastic water pipe > >Height adjustment: > a. Telescoping steel pipe with drilled bolt locations, > b. wooden shims between posts on top, > c. threaded plastic pipe fittings > >Stringers between posts: > a. Bender board (garden border wood strips), > b. redwood or fir1x4's, > c. rolled aluminum 1x2's > >Top: > a. 3/4" Plywood, > b. 1x1 crosswise strips of redwood fastened to stringers > >Weather protection: > a. Roofing material, > b. polyurethane sealant on the plywood (or whatever magic stuff >Jon Bloom put on his track) > c. redwood > >I haven't seen any articles in SitG or GRwy discussing this topic. Lots >of info on ground level electric GRwys but nothing on elevated live >steam RRs. > >It seems to me that figures-of-merit of the various techniques are: > >1. Stability: Track stays levels and unwarped in spite of temperature, >humidity, aging > >2. Ease of construction > >3. Cost > >4. Ease of modification - height adjustment to deal with settling and >warping and also ease of adding sidings, additional loops > >Thanks for any ideas and opinions >
