07-10-2014, 08:32 AM
Todd
I reworked my 1978 Newell. The floor was rusted so I removed all sheet steel and replaced it. I coated with POR15 then applied an asphalt waterproofing. I lined the compartment with FRP (fiberglass reinforced plywood) That is the material used for semi truck trailer sidewalls. It is 1/2" plywood with fiberglass matt bonded to both sides. I sealed the edge with silicone after I laid the FRP on the floor. I had some 3/16" steel bent and welded together to form the waste tank. The tank was coated inside and out with POR15. Periodically I would pour a half cup of vegetable oil in the tank to inhibit rust. The stainless steel water tank was re-installed. That was 15 years ago and it still looks great!!!
I reworked my 1978 Newell. The floor was rusted so I removed all sheet steel and replaced it. I coated with POR15 then applied an asphalt waterproofing. I lined the compartment with FRP (fiberglass reinforced plywood) That is the material used for semi truck trailer sidewalls. It is 1/2" plywood with fiberglass matt bonded to both sides. I sealed the edge with silicone after I laid the FRP on the floor. I had some 3/16" steel bent and welded together to form the waste tank. The tank was coated inside and out with POR15. Periodically I would pour a half cup of vegetable oil in the tank to inhibit rust. The stainless steel water tank was re-installed. That was 15 years ago and it still looks great!!!
1993 Newell (316) 45' 8V92,towing an Imperial open trailer or RnR custom built enclosed trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '23 Grand Cherokee.