I have looked at monstaliner and for the price, I had decided on this instead of line-x UNTIL I looked more closely at monstaliners site and found that it has a service temperature of only 122* listed in their tech data, and 190* "tolerance" (rated to withstand) in their faq. For a truck bed this is probably fine even sitting in the sun, but the inside of the Jeep gets to 175* on the transmission hump and front passenger footwell in particular, and this is sustained heat while you are driving just down the interstate. I haven't measured the temperature going up a sustained pass, but I would have to imagine it is higher - pushing even the stated "tolerance" levels of the product. Potential problem down the road?

I am curious to hear from anybody who has had this in their Wrangler for a few months and done plenty of long drives. I contacted monstaliner to ask them if it would tolerate this type of heat long term and recieved no response, this was several weeks ago. I take this as a bad sign considering how quickly they responded to my initial questions about the product and sent me a sample.

Has anyone who installed this product recieved any sort of "ok" from the actual manufacturer? Or has it just been apply and pray? For a product that is permanent that is going to create some HUGE problems if visible areas start flaking off or unadhering, especially when they are in very visible areas and areas like the passenger footwell that collect water on a regular basis.

Thanks

 

Installed a few months ago. So far no issues. I'll take a good look at it now that you bring up the concern. Didn't think the temp range was an issue. Looking back at the web sight again... Haven't seen any issues during hot Florida summer and both highway and offloading trips of up to 2 hours so far.

 

Thanks for the reply. Two hour trips in the JK are something most people don't do, and I know personally that in most TJs a two hour trip is near torturous. So it is hard to get an idea on a new product if this is ok, certainly when their information would seem to indicate otherwise. Unfortunately I do those trips a lot, so Monstaliner isn't going to work at all for me if it can't take that heat long term.

Contacted Monstaliner again, I will repost if they get back to me but I also gave them this thread so they can feel free to address this if they chose.

"Hi,

I contacted you a couple of months ago regarding the ability of your Monstaliner coating to withstand higher temperatures long term. As you likely know, one of the ways in which your product is now frequently being used is in Jeep JK Wrangler tubs. Your product representative has been on various Jeep internet forums announcing this product, explaining its uses and properties. After seeing pictures of the installations, I was pretty much sold and interested enough in the product to request a sample. After you sent me a sample, I was about to order, but after reviewing your site further, I am worried about the ability of the product to withstand heat long term. You list the service temperature at 122*F, with a tolerance of 190*F. The transmission hump and passenger floorboard temperatures of the JK (Unlimited, don't know about 2door) reach temperatures of 175*F, and sustain that temperature continuously while the vehicle is being driven at highway speeds on flat ground. The driver side floorboard reaches 160*F, and again this temperature is sustained on highway driving. This is substantially above your stated service temperature rating, and close to the absolute tolerance level you have listed on your site. I am curious as to whether you recommend JK Wrangler tubs as an appropriate use of your product, considering the temperatures in the JK. Given the fact that the vehicle is in motion when the temperatures of 175*F+ are reached, it is appropriate to assume that the liner would be in service, albeit generally light service, at this time. I would love to install this product, but would like to know if it is going to break down under these types of temperatures long term in the Wrangler. Being a new product, albeit from an established company, this information is not yet available second hand. For a product intended for permanent installation, I would hate to apply this product and have problems in a year or two.

How do you define your service temperature?
How do you define the temperature tolerance of the product?

Any information would be appreciated.

Thank you,
Rick

As a courtesy, here is a link to a forum I visit often. I asked this same question on the forum after you didn't contact me last time, to see if any of the many people who had installed your product had asked you if this was acceptable as a continuous temperature exposure. I am sure that they are curious as well.
https://www.jk-forum.com/forums/showthread.php?143531-Monstaliner-and-Heat-Problems&highlight=monstaliner"

 

Eric from Monstaliner got back to me and promised a video test of monstaliner exposed to high heat, probably by the end of the week. I tend to agree with him that if there were problems they would have already begun to appear as they have sold to over 450 people for Jeep tub installations with no problems so far - but this should be a nice test and peace of mind for anybody curious or worried about the issue.

Personally hoping for passing with flying colors so I can finally install this product in my vehicle without worry.

 

Doesn't seem anyone is really interested in this topic whatsoever, which is odd considering the number of DIY liner pages on here - but in any case, here are some results back from Monstaliner:

Well, I am both surprised and happy at the results, and the fact they were willing to do such an in depth test at request. I don't know if Eric and Monstaliner were active on this site at all, but they have seemed to be very attentitive to the needs and questions of their customers - at least as soon as those questions come to appropriate attention. I do find it a little curious though that they stated a service temperature of 122* when the product will withstand 220*?

 

Do you have a link or something? I'd be interested in reading that conversation.

 

Thanks. If bedlining is a project I undertake, I'd prefer a company with some integrity.