bumpty bump. ouch !

[Xk59D]

this is the ticket

[jonp]

Originally Posted by Xk59D

this is the ticket

This site definitely needs a like button, those are classic

[lakelandterrier]

Originally Posted by Xk59D

this is the ticket

that's more what I was thinking of

Where can I get some marine grade ones?

[Hurricane RIBs]

Hey Kerfoo,
Certainly a factory tour to start. Message me and we can sort out a time.

[treerat]

I've wondered about using a couple of mats to do this.

And after playing on a rubber crumb pitch wonder if it'll do the job -https://www.coruba.co.uk/rubber-matting/rubber-crumb-sheeting.html

[Bremar]

I too am interested in replacing an almost zero foam seat on our 4.2m zodiac pro, with something that has a bit more of a cushioning effect, and just for normal use.
Apart from guyC's response pointing towards reconstituted foam and the use of a fender (maybe that could be incorporated into a permanent seat?) are there any other suggestions.
Thanks Bremar

[gileszmilpro]

We use skydex in our newer fixed seats, its about as good as you can get without shelling out for proper shock mitigated suspension seats.

[gileszmilpro]

Deleted

[Bremar]

The Sydex site makes for very interestingn reading but appears very expensive.
Originally I was looking at closed cell foam so that it didn't absorb any water and was thinking of buying a pack of the workroom flooring tiles from Halford's (£10) and cutting and layering and shaping them to give say a 2 or 3 inch thick seat then covering with vynyl. However that may still produce a hard seat.
I've looked at the reconstituted foam (which is open cell so would absorb water) and noted that on eBay you can buy it in various weights. 5lb -14lb. I guess this is an indication of density and therefore hardness!
Does anyone know what is the preferred weight of reconstituted foam to buy for a run of the mill seat cushion on a rib.
Still quite like the concept of a partially deflated fender (and I have a few different sizes) under a shaped cover maybe to form some a seat.

Thanks Bremar

[GuyC]

I believe the 5lb relates to the weight required to compress a known area of foam by a known distance. I don't know what figures relate to the seat foam you need but it will depend on your weight to some extent.

I know some people have had multiple layers of different densities. The top layer is soft and gentle on your piles, the middle layer is the general 'shock mitigation' layer and the bottom layer tries to stop your arse bottoming out if you go over a big wave.

One of the key factors in absorbing shock, which is just high accelerations, is the distance over which the force is decelerated. A shock seat tends to have a range of 6" whereas Skydex and the like will have a range of 2" at the most so it is comparing apples and pears. Jockey seats tend to suffer with the foam being compressed with your weight to start off with. If you were to make them firm enough to stop the initial compression it would just give you a sore arse. I think the shock mitigation and the arse comfort have to be treated separately which is what a shock seat tries to do.

On the Atlantic 75 / 85, the RNLI have inflatable seat cushions to try and provide some protection so the fender idea isn't too outlandish.