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Blisters 'n microwaves
I may have talked about this idea before but it was inspired when I was
doing blister repairs on a boat and used a heat gun. The heat gun literally drove water from the hull and it poured out of adjacent blisters so...........Why waste time heating the glass when you really want to heat the water and other polar molecules. Enclose the boat in a cover of aluminized plastic and put a microwave generator inside. The water and other polar molecules in the gel coat would be driven out over a few days. Of course you'd have to keep the power level low enough to not cause arcing near any metal fittings but that should be easy. You might want to score the gelcoat to facilitate the evaporation of the water. Next, you drive thermo-setting resin into the gel coat under pressure or even slowly setting ultra-low viscosity epoxy. Finally a sealer coat. No BS gel coat peeling that fails 80 % of the time. |
Blisters 'n microwaves
wrote in message oups.com... I may have talked about this idea before......... Here is an idea. Why not address questions presented to you in other threads you started before starting yet another new thread? |
Blisters 'n microwaves
Jim:
I do not mean to ignore your questions and apologize if I did. I simply did not understand the question. It may have been obvious to you but I missed it somehow. |
Blisters 'n microwaves
wrote in message ups.com... Jim: I do not mean to ignore your questions and apologize if I did. I simply did not understand the question. It may have been obvious to you but I missed it somehow. Fair enough. So how are boat loan interest deductions devoted only to the *rich* as you earlier claimed? Even my twenty foot runabout cuddy would have qualified for the credit before I tore out the sink, ice maker and alcohol stove. Regardless, I paid cash for the deal and do not qualify. Do you now understand my point? |
Blisters 'n microwaves
NOW I see. OK, maybe we should simply eliminate all such deductions.
Google Groups is being very balky tonite. |
Blisters 'n microwaves
On 2 Jan 2006 19:24:27 -0800, "
wrote: I may have talked about this idea before but it was inspired when I was doing blister repairs on a boat and used a heat gun. The heat gun literally drove water from the hull and it poured out of adjacent blisters so...........Why waste time heating the glass when you really want to heat the water and other polar molecules. ================================================== === What are the other heating possibilities other than microwaves that require shielding? Magnetic resonance device or something similar? |
Blisters 'n microwaves
Even MRI exciting frequencies of sufficient power density to work would
require shielding. Everything requires shielding, it's simply what kind and how much. Do it in a metal building and no prob outside. |
Blisters 'n microwaves
|
Blisters 'n microwaves
wrote in message oups.com... Even MRI exciting frequencies of sufficient power density to work would require shielding. Everything requires shielding, it's simply what kind and how much. Do it in a metal building and no prob outside. I suspect the problem with microwave is that the "cavity" or metal shielded enclosure needs to be tuned to the microwave frequency wavelength, otherwise little heating will take place and the standing wave ratio will destroy the microwave generator. Induction heating? Nope - needs to be a metal. Big ass oven? Maybe - wouldn't need to set the temp too high to dry out water, but might require a long bake. I know! A scanning CO2 chemical laser! You could program it to scan the whole hull, similar to the prop measuring systems, except much higher power. I watched a guy finish the edges of saw cut, 4" thick bluestone by spraying water from a mist spray bottle until the edge surface of the bluestone was saturated, then immediately heating it with an oxygen/acetylene torch. Bluestone is very porous and absorbs the water. The torch then heated the water very rapidly so it boiled and converted to steam before it could drain out of the bluestone. The water basically "exploded" in a micro way, leaving the bluestone edges with a natural, weathered, micro sandblasted appearance. Eisboch |
Blisters 'n microwaves
On Tue, 03 Jan 2006 06:30:51 -0500, Harry Krause
wrote: Since the water buildup probably occurred over a long period of time via osmosis through tiny pores in the glass gelcoat, wouldn't a rapid dissipation of the water be impossible through those same pores? Would you not end up just "deskinning" the boat, as it were...popping off the gel coat? That is probably a very real concern in my opinion. Turning water into steam can create some very high pressures if entrapped. The best cure is simply not to buy a boat with an osmotic blister problem. I know this flies in the face of the advice of boat salesmen, owners of boats, and others with a stake in the used boat business, but better osmotic acne remain *their* problem, and not yours. Easy to say but the real world is different if you own an older boat. Boats that have never blistered in the past can suddenly develop a crop if conditions change, e.g., water temperature, length of season, etc. On a boat over 4 or 5 years old you really have no recourse with the manufacturer. |
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