trailer underside coating
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Laughing Gas
Joined: Jul 2009
Posts: 994
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From: NE Ohio
trailer underside coating
As many of you know, a few months ago I had purchased a 2002 aluminum-frame Continental Cargo 26' enclosed trailer. It has fiberglass/foam-core sandwich sides and a plywood floor. This trailer had been stored inside the original owner's barn to house his quads and such. Not really exposed to the elements. He had since passed away that that's where I came in...
What concerns me is the plywood floor. Or should I even worry about it? The roof, roof vents and doors do not leak. I just gave the previously painted floor a good coat of light-gray sanded concrete and deck paint on the inside and ramp, but what about the bottom/underside? What are the options for that? I'm thinking about spraying the entire underside of the trailer with Boiled Linseed Oil. I use BLO on the natural wood (teak) outdoor furniture as well as the bamboo privacy fencing around the patio, and that seems to slow down any deterioration for a number of years. That reminds me that I should respray the privacy fencing again before Winter sets in... Is there a better protection for the underside of the trailer???
What concerns me is the plywood floor. Or should I even worry about it? The roof, roof vents and doors do not leak. I just gave the previously painted floor a good coat of light-gray sanded concrete and deck paint on the inside and ramp, but what about the bottom/underside? What are the options for that? I'm thinking about spraying the entire underside of the trailer with Boiled Linseed Oil. I use BLO on the natural wood (teak) outdoor furniture as well as the bamboo privacy fencing around the patio, and that seems to slow down any deterioration for a number of years. That reminds me that I should respray the privacy fencing again before Winter sets in... Is there a better protection for the underside of the trailer???
Logistics Pro
Joined: Jan 2010
Posts: 4,055
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If the floor isn't marine-grade plywood or sealed from underneath, your choice of BLO would likely work well, you'd probably want to reapply yearly.
If it IS marine-grade plywood or sealed from underneath, you likely won't need to do anything, sealed is best but marine-grade plywood is pretty stout and resists elements pretty well.
If it IS marine-grade plywood or sealed from underneath, you likely won't need to do anything, sealed is best but marine-grade plywood is pretty stout and resists elements pretty well.
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Laughing Gas
Joined: Jul 2009
Posts: 994
Likes: 401
From: NE Ohio
If the floor isn't marine-grade plywood or sealed from underneath, your choice of BLO would likely work well, you'd probably want to reapply yearly.
If it IS marine-grade plywood or sealed from underneath, you likely won't need to do anything, sealed is best but marine-grade plywood is pretty stout and resists elements pretty well.
If it IS marine-grade plywood or sealed from underneath, you likely won't need to do anything, sealed is best but marine-grade plywood is pretty stout and resists elements pretty well.
I'll be pulling it onto the 'back driveway' that leads to the detached secondary garage and give it a good spraying with BLO, where it can drip-dry to its hearts content for several days. That back drive is comprised of 4" of asphalt grindings over a 6" bed of #4 stone.. Otherwise, the trailer stays parked alongside the side of the house on concrete.
More Turbo
Joined: Mar 2024
Posts: 736
Likes: 303
From: SE Vermont, South Jersey
I would probably give it a good annual coat of Fluid Film. I mean, while it's targeted at metal, it works for sheep outside all year on the Scottish Highlands, so...
Logistics Pro
Joined: Jan 2010
Posts: 4,055
Likes: 1,611
Oh, I'm pretty certain that they used Exterior/Marine-grade plywood when they built the thing. However, it is already 23 years old, and the plywood floor from underneath has that 'old, weathered wood' look. Nowhere does it look like it is trying to rot or decay. I want this trailer to outlive me!
I'll be pulling it onto the 'back driveway' that leads to the detached secondary garage and give it a good spraying with BLO, where it can drip-dry to its hearts content for several days. That back drive is comprised of 4" of asphalt grindings over a 6" bed of #4 stone.. Otherwise, the trailer stays parked alongside the side of the house on concrete.
I'll be pulling it onto the 'back driveway' that leads to the detached secondary garage and give it a good spraying with BLO, where it can drip-dry to its hearts content for several days. That back drive is comprised of 4" of asphalt grindings over a 6" bed of #4 stone.. Otherwise, the trailer stays parked alongside the side of the house on concrete.
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