Re: Back in beige
Posted: Sat Feb 21, 2015 5:18 pm
It is.
I have two types of Dinitrol undersealant - 445 and 447. When dry, 445 has a sandpapery look, and 447 is a bit smoother and gloopier.
Before I had discovered this, I painted 445 inside the front trunk, cabin and underside, and 447 in engine bay and wheel arches. I mixed my tub of microspheres with some latex primer to make home-brew Lizard Skin sound deadener, and put that all over the firewall and the backs of the rear seats before applying the 447.
The data sheet for 445 says it also acts as a sound insulator. Having applied both coatings, I've noticed a slight difference in the way the shell rings when tapped, but it still rings. Not a great success. I want the car to be pleasant to drive, so my plan now is to fit some Acoustic Polymeric Barrier (aka Dynamat, without the tradename).
I'm going to re-cover the trunk, cabin and underside in 447 because it looks more like the is the original factory coating used on the car. I'm really pleased with the way the 447 is going on.

The through-body ARB cover will be covered-up with sealant. I won't be using a through-the-body ARB.

This is 445 in the centre section, with 447 in the wheel arches. You can't really see it at this distance, but the textures are slightly different. 445 seems harder and stiffer. Both are very solid.


This is 445 coating the cabin. I'm not keen on it.

447 in the engine bay.

I have two types of Dinitrol undersealant - 445 and 447. When dry, 445 has a sandpapery look, and 447 is a bit smoother and gloopier.
Before I had discovered this, I painted 445 inside the front trunk, cabin and underside, and 447 in engine bay and wheel arches. I mixed my tub of microspheres with some latex primer to make home-brew Lizard Skin sound deadener, and put that all over the firewall and the backs of the rear seats before applying the 447.
The data sheet for 445 says it also acts as a sound insulator. Having applied both coatings, I've noticed a slight difference in the way the shell rings when tapped, but it still rings. Not a great success. I want the car to be pleasant to drive, so my plan now is to fit some Acoustic Polymeric Barrier (aka Dynamat, without the tradename).
I'm going to re-cover the trunk, cabin and underside in 447 because it looks more like the is the original factory coating used on the car. I'm really pleased with the way the 447 is going on.

The through-body ARB cover will be covered-up with sealant. I won't be using a through-the-body ARB.

This is 445 in the centre section, with 447 in the wheel arches. You can't really see it at this distance, but the textures are slightly different. 445 seems harder and stiffer. Both are very solid.


This is 445 coating the cabin. I'm not keen on it.

447 in the engine bay.




