Noise insulation of the trunk plastic - Toyota Celica, 2.0 l., 1994

And How ?

Yes. is there an effect?

Since when has Bitoplast become soundproofing?

It is anti-creak material all its life, even according to the StP specification.

in general, I also glued the trunk with viroplast m1 like (2.3mm), it is necessary to glue 4mm spleen on top of it. + plastic what is in the photo ....
not yet assembled, since there is no spleen yet ... the noise in the cabin is mad) ... there will be photos soon ... how I will
collect the report will be ready ... ... keep in mind: if you are going to make noise-vibration-heat insulation, then do it in full ... otherwise it will turn out like mine: first I made the floor and the roof, there was noise in the trunk, made the trunk, noise appeared in a motor shield (underfoot), etc.
About whether the noise is reduced or not, I will say yes, but not by much. I think full noise isolation will remove 15 percent of all noise, no more)))

Splen - reflects noise, bitoplast - absorbs, this is as an addition, everything is glued in 3 layers: bibroplast, splen, bitoplast (plastic) - it is still glued at the joints to remove squeak ...
Everyone does their own way, how many people have so many opinions

I also glued the whole trunk like this))) Now silence))))

in the photo there is only plastic, and not in fact, the entire trunk is glued with STP)

Yes, like a parolon. A bit sticky. STP Russia

Is bitoplastic actually bitumen foam? If so, why did you take it? I can't find it anywhere in the city = (

yes, the vibroplast is heavy. But this is the foundation. Shumka won't work without it, IMHO. Because the iron will rattle!

bitoplast-norm
but vibroplast I will shoot

Well, okay that adds a lot of weight. Vibration isolation is heavy. And the Shumka is light. You can wrap the whole car at least in 3 layers.
the noise absorber weighs approximately 500g per square meter.
the noise isolator weighs the same 500g. per square meter.

those. if you glue all the plastic in 2 layers, then you get 1kg per square meter. Even if you can find 10 square meters of plastic in the car, it will be + 10kg of weight.

Is it really so noticeable? I don’t think))) I don’t feel the difference when for example + 1 passenger.
If 5 men are sitting in the car with an average weight of 75 kg, then yes, it is noticeable)))

I've covered everything I can, now I'm slowly peeling it off. I'm adding a lot of weight.
Bitoplast_min.vata will be and that's it

I'll do it now too. In general, no matter who says what, any layer of any material copes well with noise!
For example, you remove at least one plastic part from the car and that's it ... The noise is worth it. I glued it with spleen - good. I glued it over with Bitoplast - even better. And if in front of these on a large flat surface I glued a piece of some bimast - generally good.

I don’t know how anyone, but I’ll cover everything I can with everything I can))) Although everything is already covered with it ...