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Polystyrene for hotwire cutting

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Ace25/10/2020 08:30:29
384 forum posts
23 photos

Struggling to find virgin white foam at a reasonable price to cut a 70" wing from in Yorkshire. Question - does the recycled and coloured elements found in Kay Metzeler and Jablite from either Wicks or B & Q have any major drawback to producing an acceptable blank? ie. If the wire drags does it cause unacceptable ripples? Thanks

Former Member25/10/2020 08:42:55
380 forum posts

[This posting has been removed]

perttime25/10/2020 13:19:44
228 forum posts
18 photos

Do any UK construction supplies stores offer XPS foam, instead of EPS? On my side of Europe, people prefer XPS for model building. Not as crumbly.

kc25/10/2020 16:04:46
6946 forum posts
175 photos

Foam used for wings is normally 1 pound weight per cubic foot.

Ace25/10/2020 16:47:24
384 forum posts
23 photos

Barrie - Thanks price is right but collection only sad

Perttime - I have some blue but was saving it as Extruded is even harder to find now (blue or pink)

KC - EPS70 14kg cu m which is just under 1lb cu ft. Kay M and Jablite are both EPS 70.

Has anyone used either and does it drag unacceptably on the wire? thanks.

Mike T25/10/2020 17:58:39
607 forum posts
41 photos

The Ecclestons' stuff is available in 1200 x 600mm packs of varying quantities and thicknesses - enough to cater for most needs, at £11 courier delivery. Looked like the ideal solution, but they state it is 20% recycled foam, so will have bits in it which may snag a wire...

Knauf pink foam used to be generally available - I got a slab from Wickes - but it doesn't seem to be around anymore.

Edited By Mike T on 25/10/2020 18:00:07

perttime25/10/2020 18:17:20
228 forum posts
18 photos

XPS doesn't have to be colored.

Edited By perttime on 25/10/2020 18:18:33

Ace25/10/2020 23:29:46
384 forum posts
23 photos

Mike/Barrie - Thanks I only saw 2400 x 1200 sheets, the 1200 x 600 was under handy pack and that does have carriage blush Has recycled and flecks but if Barrie has used it ok then will give it a go. However will get either the Kay M or Jablite 2400 x 1200 locally (same make up) as the size suits my needs more efficiently. thanks both.

Pettime - You learn something new every day and a source which I thought had dried up completely. thumbs up

Former Member26/10/2020 07:55:25
380 forum posts

[This posting has been removed]

Matt Carlton26/10/2020 08:59:29
253 forum posts
42 photos

I stumbled on this supplier the other day;

Simacon Insulation

EPS sheets 1200 x 2400 x 100 for £18.

Delivery available apparently.

XPS sheets (blue) 600 x 1250 x 100 for £40 (4 sheet pack)

Danopren XPS foam

Whether this is good or bad quality or price I really don't know, I just put this here for your info!



Nigel R26/10/2020 11:02:50
4424 forum posts
717 photos

I recently bought a lot of bead foam (25 full size sheets) to insulate my shed, sold on ebay here , price was reasonable, delivered in two days, and the foam sheets appeared to be without the black bits that come in the DIY shop stuff.

For smaller sizes, they sell 6 sheets of 1200x600x50mm for £31, delivered.

Ace26/10/2020 13:00:37
384 forum posts
23 photos

Thanks all, managed to get a damaged (300 x 300 corner missing) Kay M 2400 x 1200 x 50 from a local builders supply for silly low money - £5. If not satisfactory will try Ecclestons as used by Barrie with acceptable results.

Thanks again for all the leads. Ace

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