Dodo Mat Dead-EZY Sound deadening mat, 40 Sheets, 40 sq.ft (3.7sq.m), car & Van Sound proofing, Vibration Damping

Absolutely brilliant stuff brought this to soundproof. My caddy works a treat what you’re waiting for.

Great product! Made an immediate difference. All the rattly sounds went and just a very quiet van. Sticks on surfaces very well and cuts easily to shape.

Excellent quality/kit and easy installation. Very effective in van noise reduction

Yes, excellent product, does what it claims. You probably don't need as much of it as you think. It increases the mass of the panel changing its resonant frequency. So the panel doesn't resonate (vibrate in tune) with everyday van and road typical vibrations. As long as you add enough mass to significantly shift the resonant frequency, that's all you need. Sound proofing is a different kettle of fish (think baffles). A different product is needed for that. This is sound deadening and its good at that.

Very easy to use