80 mil gorilla shield

[audioholic 5,000+ posts]

"DROPMAT is a rubberized material with a top protective layer of aluminum." - http://www.dropmat.com/dropmat.html

It doesn't even say its butyl rubber based mat. Im guessing, based on its price and the wording in its advertising, that its asphalt based crap. Ben over at Elemental Designs use to call his asphalt based mat a 'rubberized' material too, hoping we'd all think it was butyl based. Truth was it was simply asphalt based mat with the same minuscule amount of rubber in it used as a binding agent that every other asphalt mat out there uses too. Im betting this is the same situation. If so, trying to deceive your customers is a bad way to start out your business.

 

[2lo2flo 10+ year member]

Guess there is only one way to find out.

When you try it out Todd (pawnman), you can give us a review!

 

[pawn man 10+ year member]

i have looked at a sample of 50mil. it doesn't look like asphalt based. not sure though.

 

[pawn man 10+ year member]

rubberized black butyl based compound. if you read the web site it clearly says. pretty cool web site. has alum. constraining top layer.

 

[Brian_smith06 10+ year member]

isnt this the second or third thread I have seen on them in this forum?

 

[Brian_smith06 10+ year member]

http://caraudio.com/forum/general-discussion/471140-ran-across.html

like this one, also started by you

 

[Rudy 10+ year member]

i have looked at a sample of 50mil. it doesn't look like asphalt based. not sure though.

Drop a 1" square in an ounce of mineral spirits. If the liquid is brown after 15 minutes or so, it's asphalt. If the liquid turns black with black particles (gray if the adhesive is gray), it's probably butyl. Leave the piece in the mineral spirits for a day. The adhesive will completely dissolve. Test the facing for continuity across both sides and front to back to see if it is fully foil or a foil/plastic laminate.

 

[pawn man 10+ year member]

Drop a 1" square in an ounce of mineral spirits. If the liquid is brown after 15 minutes or so, it's asphalt. If the liquid turns black with black particles (gray if the adhesive is gray), it's probably butyl. Leave the piece in the mineral spirits for a day. The adhesive will completely dissolve. Test the facing for continuity across both sides and front to back to see if it is fully foil or a foil/plastic laminate.

once i get another sample i will try this and let you know the results. sounds like a pretty good way to check it.

 

[pawn man 10+ year member]

http://caraudio.com/forum/general-discussion/471140-ran-across.html
like this one, also started by you

i say again i am not afiliated with the company. i just came across this and contacted the company. it looks pretty good at first glance. the price is very reasonable. if it passes the snuff test it maybe a good alternative to some of the other companies.

 

[nateberrier 10+ year member]

Im down to try it in my project car. if its butyl based then it cant be too awful can it?

 

[pawn man 10+ year member]

i am going to be building a 159.9 bass race vehicle and i was looking at it because of the price. this thing is going to cost me alot and i am trying to get something that does a good job but also cheaper.

 

[Anthony Collova 10+ year member]

Drop mat claims to be butyl. Says it right on the product information page.

Also has a 3 mil foil , which is a bit less than desireable, but better than a 2 mil foil which is what most of the roofing products toute.

They claim that the foil stretches and does not tear which, seems kind of strange to me.

It might be good stuff for the price.

ANT

 

[pawn man 10+ year member]

at first glance it looks good. we will see.

 

[Ronny 10+ year member]

"DROPMAT materials can and will increase your output of you car audio system's sound quality, SPL and life or your equipment."

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[audioholic 5,000+ posts]

"DROPMAT materials can and will increase your output of you car audio system's sound quality, SPL and life or your equipment."
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I did a double-take at that claim as well. But after thinking about it, a lower noise floor means you can run the stereo at a lower volume, there by increasing equipment life. If they want to go far enough, they could probably list a way it would inhibit your girlfriend from getting pregnant.