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Author Topic: cork underlay  (Read 988 times)

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Offline first timer

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cork underlay
« on: February 09, 2018, 09:31:50 am »
My baseboard is covered with cork underlay but I want to rise the track a little above that, is 1 and a quarter wide cork roll good enough for the job? if so how easy is it to bend to make curves and also cutting out bits for turn-outs.

  Les.

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Re: cork underlay
« Reply #1 on: February 09, 2018, 09:48:14 am »
Most of the track on my layout  is laid on cork underlay about 3mm thick. This gives what is to me, an acceptable ballast shoulder.

However, from what I read here, that's too high, more like a USA trackbed.

However, I like the high ballast shoulder, but look forward to the discussion your post will make!  :thumbsup:
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Offline Newportnobby

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Re: cork underlay
« Reply #2 on: February 09, 2018, 10:13:25 am »
As Bealman says, I reckon 3mm is too high really. I use 1½mm commercial grade rubber as underlay so I reckon if you add another layer of cork beneath the track only you could be OK dependent on how thick the cork is. The 1¼ inch width would be fine. You might have to cut some small wedges out of the track underlay to form curves but again, that would depend on how sharp the curve radius is :hmmm:

Online Bealman

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Re: cork underlay
« Reply #3 on: February 09, 2018, 10:43:22 am »
Actually, let's change 3mm to 2mm. Just went out to garage and measured it.  :-[
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Offline Newportnobby

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Re: cork underlay
« Reply #4 on: February 09, 2018, 10:49:11 am »
Thinking about it further (and providing I am understanding the OP correctly) there is no need to cover the entire baseboard so it would be easier to decide where you will have track, buildings, platforms etc and then trim the rest away.
It has to be remembered that to maintain the correct heights, the same underlay beneath the track needs to be under all buildings.

Offline ntpntpntp

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Re: cork underlay
« Reply #5 on: February 09, 2018, 12:59:46 pm »
I'm with @newportnobby on this one - don't waste cork covering the entire board. It's a waste of material and means you later have to cut it away again to create any scenic effects below track level.

Just use the cork for the track bed to give a ballast shoulder, and under any lineside features that need to be the same height (though even then you can use plain scrap card which is cheaper).    I use 1" wide strips of 2mm cork under my trackwork. For curves I split that into two 0.5" strips either side of the centreline  so that it's easier to shape and follow the curve.
« Last Edit: February 09, 2018, 01:01:48 pm by ntpntpntp »
Nick.   2016 celebrating the 20th anniversary of "Königshafen" exhibition layout!

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Re: cork underlay
« Reply #6 on: February 09, 2018, 02:25:31 pm »
So if I buy 1,1/4 wide and eighth thick and 98 ft long and leave the rest as bare ply that should do the trick     yes

Offline Newportnobby

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Re: cork underlay
« Reply #7 on: February 09, 2018, 02:45:19 pm »
Yes, but can you source slightly thinner cork?
These guys do 1/16th" thick which, according to my brain, is roughly 1½mm.
Rolls for track and sheet for under structures.

http://www.charlescantrill.com/shop/model-railway/cork-rolls-tracklaying/

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Re: cork underlay
« Reply #8 on: February 09, 2018, 03:09:20 pm »
Yes I can get 1/16, do you think that would be better , its from quality cork supplies £13.10 per 98ft roll.

       Les.

Offline Delboy

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Re: cork underlay
« Reply #9 on: February 09, 2018, 03:21:46 pm »
Yes, but can you source slightly thinner cork?
These guys do 1/16th" thick which, according to my brain, is roughly 1½mm.
Rolls for track and sheet for under structures.

http://www.charlescantrill.com/shop/model-railway/cork-rolls-tracklaying/


The Charles Cantrill rolls are very good quality cork. I bought the 7/8" wide roll which in my opinion is just right for a single track bed and can be bent for curves. For points etc I have sheets of cork which I trace around using the item as a template.
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Offline Newportnobby

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Re: cork underlay
« Reply #10 on: February 09, 2018, 04:01:33 pm »
Yes I can get 1/16, do you think that would be better , its from quality cork supplies £13.10 per 98ft roll.

       Les.

I think 1/16th would look better. The link I gave you has it in 98ft x 1¼" x 1/16th" for the same price as you show above. I'd use it as Delboy has suggested.

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Re: cork underlay
« Reply #11 on: February 09, 2018, 06:11:50 pm »
That sounds like good advice Delboy, checked out the web site and its just what I need at the right price.

Offline ntpntpntp

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Re: cork underlay
« Reply #12 on: February 09, 2018, 06:19:14 pm »
The long narrow strip roll sounds like a good idea for you. 

Personally I buy wider sheet/rolls and just use a Stanley knife and steel rule to cut strips as required. I've not investigated whether the sheets are more economical than the narrow rolls?  I think the last roll I bought was from The Fridge Magnet Shop (or something like that!)
Nick.   2016 celebrating the 20th anniversary of "Königshafen" exhibition layout!

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Re: cork underlay
« Reply #13 on: February 12, 2018, 07:35:15 pm »
So are we agreed that 1/16 of an inch is a more realistic thickness than 1/8.

   Les.

Offline Newportnobby

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Re: cork underlay
« Reply #14 on: February 12, 2018, 08:35:35 pm »
That's a 'yes' from me but see what other replies you get.

 

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