I'm not sure how durable it will be from an undercoating aspect, but I will say that the hood sections are completely "dead", they just thunk when you tap on them. Now it did add some weight, but it's a mass damper so that's to be expected. It seems quite "hard" once it's cured, as opposed to the liner which is much more "rubbery".
I'm kind of glad I didn't put it on under the Al's Liner I used on the underside of the cab as I would have probably made the same mistake there and potentially compromised the protection of the liner. The liner should provide some damping, but it's hard to tell with the rest of the cab still bare.
I still have more than half the bucket left, not sure where else I will use it. The other section of the hood will probably get some, but I had been looking at using Sound Deadener Showdown products inside the cab and doors, though this might be a better option for a few difficult areas like the underside of the dash and cowl, and I may use it on the underside of the floor and transmission covers as well, which would be an interesting test of how it holds up vs the Al's Liner.
Otherwise it's quite easy to work with, everything cleans up easily with water, and there are no fumes. Where it lifted the bottom coat was well adhered, so I just made sure to get everything clean and then since it was flat poured in a small amount of product and spread it out with a brush, repeating till I had built the area back up. Same with any cracking, I just filled them with some more product like joint compound.
The gun in their application kit is nice but a little tricky to use, I think the regulator I had put on the gun was restricting flow too much as the stuff likes pressure. The material came out but fine, but was not real uniform so they talk about a 10 to 20 mil coat but I think I had that in some areas but was thicker in others and that caused my problems. I removed it for the heat control as it wants even higher gun pressures (compared to HVLP guns anyway) and got a much better pattern, but that material is also far lighter too.
Also, they provide a test to determine when it's dry enough for a second coat which is OK for a thin coating, but there is no re-coat window, so more time is never a bad thing. I think the first coat wasn't compeletly dry and the second coat partially re-wetted the first coat making it act like one super-thick coating which is why it behaved badly.
I'm kind of glad I didn't put it on under the Al's Liner I used on the underside of the cab as I would have probably made the same mistake there and potentially compromised the protection of the liner. The liner should provide some damping, but it's hard to tell with the rest of the cab still bare.
I still have more than half the bucket left, not sure where else I will use it. The other section of the hood will probably get some, but I had been looking at using Sound Deadener Showdown products inside the cab and doors, though this might be a better option for a few difficult areas like the underside of the dash and cowl, and I may use it on the underside of the floor and transmission covers as well, which would be an interesting test of how it holds up vs the Al's Liner.
Otherwise it's quite easy to work with, everything cleans up easily with water, and there are no fumes. Where it lifted the bottom coat was well adhered, so I just made sure to get everything clean and then since it was flat poured in a small amount of product and spread it out with a brush, repeating till I had built the area back up. Same with any cracking, I just filled them with some more product like joint compound.
The gun in their application kit is nice but a little tricky to use, I think the regulator I had put on the gun was restricting flow too much as the stuff likes pressure. The material came out but fine, but was not real uniform so they talk about a 10 to 20 mil coat but I think I had that in some areas but was thicker in others and that caused my problems. I removed it for the heat control as it wants even higher gun pressures (compared to HVLP guns anyway) and got a much better pattern, but that material is also far lighter too.
Also, they provide a test to determine when it's dry enough for a second coat which is OK for a thin coating, but there is no re-coat window, so more time is never a bad thing. I think the first coat wasn't compeletly dry and the second coat partially re-wetted the first coat making it act like one super-thick coating which is why it behaved badly.
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