I know it can’t be completely eliminated. ’17 f150 spray in liner. Has always loaded up with gravel dust. Any recommendations on a silicone or gasket material to put on the cracks. I can see daylight coming through in a few places where bottom of bed meets the sidewall. I did but a foam tailgate seal to try. Thanks.
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my buddy has tried several of the tailgate seals, None of them seemed to help much.as far as the cracks go, are you saying that the sprayed in bed liner has cracked? I’m a little unsure what cracks you could be talking about.
Referring to where the tailgate meets the sides & bottom of the truck bed, they sell vinyl like door seal kits/come with tonneau covers that you can try. Google truck best seal kit. I haven’t found a great way of keeping dust out myself but want to find something too.
I will echo the last 2 responses-i can’t keep it out. I have a pretty nice Diamondback cover with a rubber “seal” and it doesn’t keep it out. I just look at it as the price i pay for living in the middle of nowhere, which I’ll take. I just don’t put anything in the bed without acknowledging it’ll be covered in dust.
After many attempts with Access trail seal kits and X-tangs seal, I am of the opinion nothing really works all that well. I just got a new F-150 with the pro access tailgate and it’s really bad! I love the tailgate but the dust it allows in is the worst I’ve ever experienced.
If it’s been so long my bed is getting dusty, usually a nice meal out and a couple 3-4 cocktails work for my FW….oh TRUCK beds, nvm carry on. 
Around the perimeter where the bottom meets the sidewalls I’d do a polyurethane sealant like Vulkem. Clean everything real well with a pressure washer, get the oils off with alcohol. Then apply the sealant. I’d practice on something first, but the key with this stuff is to not touch it after it has been applied. No matter how much you think you can make it look better you won’t, it smears EVERYWHERE.
It should hold up to most abuse, but I doubt it would survive something sharp and forceful like the corner of a shovel.
Otherwise I have seen people install a fan in the cab with a duct running to the bed to pressurize the bed compartment. Obviously this is a bit more work but should fully eliminate most dust as long as you remember to turn it on when needed.
Thumper, it hasn’t cracked per say, but at the 90° joint where wall and floor meet I can see light coming through in multiple places. Not looking for a cure as I know that’s not possible. Just a “dust reduction.”
I silicon and duct tape every hole and seam that I can find in the bed itself and install gaskets around the tailgate. I still have some dust come in with a topper installed but it isn’t too bad. I have done this on my last 4 aluminum boxed Fords which have large gaps at the seams.
I am not sure ford is the same but some trucks it is coming in mainly from under the rail sides. They make foam kits to stuff in there. A buddy has used them and said they do work.
After a good cleaning I would imagine Gorilla tape would be a working option for the area that the OP is describing.
leave the cover rolled up unless you have something in the bad that cant get wet.
I bought a $2 pool noodle, cut it to length, and stuffed between the bottom of the tail gate and the bumper. Didnt stop it all ,but worked pretty good for cheap.
I’ve found that installing a bed rug does a good job of sealing out dust
If it’s been so long my bed is getting dusty, usually a nice meal out and a couple 3-4 cocktails work for my FW….oh TRUCK beds, nvm carry on.
You have to put in that much effort ? I deal with the opposite, have to fight her away lol damn lady I need a break I’m getting old.
I’ve found that installing a bed rug does a good job of sealing out dust
I run a bed rug to and I love that thing. But dust in the box is just part of dirt road traveling. It comes up the drain vents up the box sides in the fenders it just finds it’s way in.
Check out this kit: https://www.accesscover.com/access-total-bed-seal/ At the beginning of the video it shows the foam inserts I was talking about. Like I said, I dont know if Ram and Ford are built similarly or not.
My truck beds get spray liners and that’s the end of it. The trucks I have are too often hauling wood, dirt, rocks, garbage, tools, animals, etc for me to dust the thing like it’s my living room. On the rare occassions where my newer truck needs to be kept nice and neat (like family vacations) – I just tell whoever that the stuff going in the bed should be “ok” to get dirty or wrap it in a bag/case of some sort.
I do have to get better about not having corn in the bed though. A few weeks ago I jumped in a truck and drove to the school, only to find a raccoon in the bed having himself a feast out of some buckets of spilled corn I shoveled into buckets from around our bins. I set him free in the parking lot while a volleyball player’s mom watched with a strange look on her face 
In a word, no. You mitigate but you do not stop.
I have a topper and we dont like hauling our dogs back there anymore because of the powdery gravel roads in Iowa. The best solution we have is using a Suburban instead.
have to fight her away lol damn lady I need a break I’m getting old.
Said no real man Ever !!! Even really old ones.
<div class=”d4p-bbt-quote-title”>Bearcat89 wrote:</div>
have to fight her away lol damn lady I need a break I’m getting old.Said no real man Ever !!! Even really old ones.
Oh man a guy gets tired.
In a word, no. You mitigate but you do not stop.
I have a topper and we dont like hauling our dogs back there anymore because of the powdery gravel roads in Iowa. The best solution we have is using a Suburban instead.
My father tried every seal, gasket, weather strip, and some home-cobbled devices trying to reduce bed dust. He tried with 5 different pickups over a 20+ year span covering Ram, GMC, and Chevy.
He came to the same conclusion you did–buy an SUV. Dust problem solved.
This discussion has come up before and it seems like the best anyone can do is reduce the dust a little.
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