22 MAY 2009
PART 2 OF 2
THE FOAMS OF TODAY ACTUALLY WORK AND I RECOMMEND THEM.
IF YOU HAVE A STOCK FRAME AND IT IS FREE OF THE BODY AND
DRIVE CHAIN THEN I RECOMMEND THE INTERIOR OF THE CHASSIS BE CLEANED OUT OF
ALL DEBRIS AND THE SOAKED IN PHOSPHORIC ACID BUY INJECTING IT AND ROTATING
THE FRAME OR SUBMERGING IT IF POSSIBLE. WHEN THOROUGHLY DRY, FILL THE
CHASSIS WITH POLYURETHANE FOAM AND THEN CLOSE ALL ENTRY AND EXIT POINTS.
HERE'S MY REASONING: THE RUST IS ALREADY THERE AND THE PHOSPHORIC ACID BATH
WILL STOP THE EXISTING RUST BUT I WON'T STOP THE NEW RUST FROM FORMING. IN
ORDER TO DO THAT YOU HAVE TO ELIMINATE TWO ELEMENTS, OXYGEN AND WATER. BY
FOAM FILLING THE FRAME YOU DO JUST THAT. IF YOU DO NOT FOAM FILL YOU STILL
HAVE OLD RUST AND ALLOWING OXYGEN AND WATER TO ENTER WILL EXPEDITE THE
INEVITABLE. IF YOU WAXOYL OVER RUST YOU HAVE DONE NOTHING OF ANY PRACTICAL
WORTH. PHOSPHORIC ACID SHOULD BE APPLIED BEFORE THE WAXOYL OR THE FOAM. THE
POINT HERE IS THAT WHETHER YOU APPLY FOAM TO THE CHASSIS OR NOT YOU ARE NOT
GOING TO STOP RUST FROM FORMING UNLESS YOU LIMIT THE ELEMENTS THAT CAUSE
RUST. FOAM DOES THAT BETTER THEN NO FOAM OR ANYTHING ELSE.
ON NEW FRAMES THE CHOICE IS YOURS AS THERE IS NO RUST WHEN
YOU GET THEM. THE OLD FRAMES HAVE LASTED 30 -40 YEARS ARE STILL GOING
WITHOUT ANY RUST PREVENTATIVE. THE RATCO FRAMES WILL DO AT LEAST THE SAME OR
BETTER IF LEFT UN-PROTECTED. AS ALWAYS ITS A MATTER OF HOW AND WHERE IT IS
STORED AND DRIVEN. FOAM FILL ON ANY FRAME WHETHER OLD OR NEW, DOES ONE VERY
IMPORTANT THING THAT HAS DRIVEN THE CARS COMPANIES AND ME TO USE IT. IT
SOUND DEADENS THE FRAME AND IF USED ON THE BODY PANELS AS WELL, MAKES THE
CAR SEEM RIGID BECAUSE IT RESONATES LESS. IF YOU DO ONE OF MY EXPERIMENTS
YOURSELF YOU WILL SEE WHAT I MEAN WHEN YOU KNOCK ON THE SECTION WITH A METAL
OBJECT. YOU WILL GET A RESOUNDING THUD AND NOT A CLANK. MY TR SOUNDS LIKE
IF IS CUT FROM A SOLID MASS WHEN YOU SLAM THE DOORS AND RIDES SOOOOO QUITE
THE ONLY THING I HEAR IS THE EXHAUST NOTE.
ENOUGH SAID. I RECOMMEND FOAM FILL. THAT MY STORY AND I'M
STICKING TO IT.
I INVITE QUESTIONS AS THE FOAM FILL PROCESS IS NOT EASY AND YOU NEED
TO KNOW ALL THE MISTAKES I MADE IN THE LEARNING PROCESS.
JUST ONE MANS OPINION
REGARDS,
TONY VIGLIOTTI
RATCO INC
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