Suburban LLC rubber floor mat install help

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TomC

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i purchased an entire set of rubber floor mats for my 81 burb. I’m a pretty handy guy but these are kicking my rear end. I cleaned and covered the floor with sound mat and now I’m trying to install the flooring. I let them sit for over a month on the hydronic heated floor in my shop but the are still really stiff and the wrinkles are very difficult or impossible to get out. The molding is very crude and barely matches the floor pans. I started with the front which is the hardest .
Any suggestions? I’m trying to use my heat gun which is helping but it seems to simply go back to its original non-matching shape when it cools. I’ve got it kinda close and have weighted it down and think I’ll put a heater on it for a couple of hours or something. Any suggestion or words of wisdom will be appreciated.
 

bucket

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Maybe it's a good job for in the summertime? Lay them out in the sun on a hot day?

Is it mostly creases and folds from shipping?
 

TomC

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Yes but the bigger problem is it doesn’t fit tight to the floorboards.
It is stiff and stands away from the floor board in the corners etc..
 

shiftpro

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More heat, pour the coals to it. Hot sand bags.
 

TomC

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The mat is the only complete rubber floor covering ( Mat) LMC truck sells.
Sand bags isn’t a bad idea. I wonder how you could keep them warm or hot?
 

bucket

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The mat is the only complete rubber floor covering ( Mat) LMC truck sells.
Sand bags isn’t a bad idea. I wonder how you could keep them warm or hot?

Put them in the oven. The sand should retain heat pretty well.
 

80BrownK10

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The mat is the only complete rubber floor covering ( Mat) LMC truck sells.
Sand bags isn’t a bad idea. I wonder how you could keep them warm or hot?
Put this mat back in the shop. Drive truck all winter or keep in garage, whatever you normally do.

Come August , lay it in your driveway for a week, then on a 98 degree day, tackle this job again
 
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TomC

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Yea that’s probably the best idea but we don’t get those hot days until July or August. I hate to wait that long. I’ll just keep wrestling it.
 

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