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EFP30 Polyethylene closed cell foam sheets

Rigid non-absorbent waterproof foam

Product Specification - EFP30

DescriptionStandardValueUnit
DensityISO 84530 Kg/m³
Tensile strengthISO 1798282kPa
ElongationISO 1798189%
Compression 10%ISO 84444kPa
Compression 25%ISO 84462kPa
Compression 50%ISO 844122kPa
Compression Set-0.5 hoursISO 185612.0%
Compression Set-24 hoursISO 18564.0%
Compression Set 50% 0.5 hoursISO 185628.0%
Compression Set 50% 24 hoursISO 185616.0%
Working Temperature RangeInternal-60 to +90ºC
Water Absorption %Vol (max)Internal1%
Water Vapour TransmissionISO 16631.30g/m² *24h
Thermal Conductivity at 10CASTM C1770.0390W/mK
Thermal Conductivity at 40CASTM C1770.0410 W/mK
Shore-OOASTM D224054oo
FlammabilityFMVSS30255mm/min

EFP30 is a closed cell cross-linked polyethylene foam block.
Tolerances other than the above may be negotiated.
Dimensional stability 24 hr at 70ºC < 2%.
Dimensional stability 24 hr at 90ºC < 5%.
This information on EFP30 chemically cross-linked polyethylene foam is presented to the best of our knowledge.
Data represents typical values measured on a 10mm thick specimen and should be considered as guidelines only.
We reserve the right to update product data information without prior notice.

Last update: 06/09/10Close Window
Polyethylene or closed cell foam is a very strong, rigid and resilient chemically cross linked foam.
    Application examples: Closed cell foam up close
  • Shock absorption
  • Packaging
  • Buoyancy aids
  • Thermal insulation
  • Kneeling pads
  • Acoustic sound proofing
    Features:
  • Resistant to chemicals and grease
  • Impervious to bacteria, mildew & rot
  • Lightweight and flexible
  • Wear and tear resistant
  • Resistant in temperatures between -60c and 90c
Closed cell foam up close
For detailed specifications please click here.

Note: EFP30 is not fire retardant, if you need a fire retardant option please contact us.

Supplied in sheets of 2 x 1 metres and 1 x 1 metres. Colour: Black or white.
Note: We can supply Closed cell foam in other colours and thicknesses on request, please contact us with your requirements.

For a superior closed cell foam, please see Plastazote.

Closed cell polyethylene sheet EFP30

Rigid closed cell foam which is non-absorbent and waterproof. Optional self-adhesive backing. Colour: Black or white. More information on the closed cell foam page.
 Sheet size:


 at thickness: 
 in colour:  
Quantity:   Price: £

Closed cell polyethylene EFP30 cut to your size

We can cut the sheets above in any size you need.
With or without self adhesive backing.
Select Size

What is closed cell foam, and why is it so good?

If you're looking to replace your boat's seating, change out the caravan insulation or start a new project where you need to block out moisture and mildew, then there's an excellent foam that can help you with that. This is a foam that is mould resistant, waterproof, buoyant and used for all kinds of projects such as soundproofing and insulating.

What's so great about closed-cell foam is that it has a lot of benefits. For example, it doesn't take on water, which you'll find with open-cell foam. Closed-cell foam is made of cells that don't adjoin, which also makes it wipeable and water-resistant.

You may have seen closed-cell foam – also known as polyethylene - before in the form of a pool noodle or even a yoga mat. Here at EasyFoam, we are always asking what life would be like without foam. And we all agree that it wouldn't be quite so lovely, and definitely not very comfortable.

So read on and find out why closed-cell foam is perfect for so many different purposes, including yoga mats, pool noodles, crash pads and mats, packaging, medical equipment comfort, kneeling pads for gardening, soundproofing and rollers for therapy and exercise.

Closed cell polyethylene foam mats for yoga

'Can't fault the choice or the value.'

"Needed some foam for under the Hot tub. Rather than the manufacturer's kit, I found Easy Foam, which is local-ish, and provided the foam I need at 35% less than buying a bespoke kit. I can't fault the choice or the value." – Simon P

Let's explore the world of closed-cell foam, the benefits of using it, and why it's loved by so many of our customers.

We're going to demonstrate the benefits of polyethylene foam, which is the most popular closed-cell foam. However, there are plenty of other types of closed-cell foam such as EVA foam, SBR Foam rubber and nitrile foam, in addition to neoprene foam.

Here are some of the benefits of closed-cell foam:

No bacteria, no mildew and no rot – all of these aren't something you will not experience with any closed-cell foam, including polyethylene. Remember, each cell is closed, so no water is absorbed, which means a moisture and water barrier.

Great for extreme temperatures – we're talking anywhere between minus 60 degrees centigrade and 90 degrees centigrade. Perfect for extreme climates such as out in the desert of Saudi Arabia or fabulous on the tundra of Alaska!

Durable to the end – you get a marvellous lifespan with closed-cell foams. They retain their shape and stay strong. This means you get your money's worth out of them. They are a worthwhile investment.

Sound structure – they might be lightweight and flexible, but they still keep their strength. This is what makes closed-cell foam an exceptional shock absorber. This foam will spring back to how it was before the impact.

Buoyant – popular for water sports, the boating industry and more, closed-cell foam floats!

Closed cell foam pool noodles

"Fast delivery and helpful Customer Service"

Here at Easyfoam we sell closed-cell foam to a range of different people. Some are looking to replace the foam on their car seat, others want to soundproof their music studio, and others want some reliable padding to protect the floor from being damaged. Whereas others want something comfortable to kneel on when they're doing the gardening. What makes us different from the rest is that we supply our foam at money-saving prices, and you can receive your order for free the next day.

Our closed-cell foam is better than others because we don't sell anything that we wouldn't use at home ourselves – and we are very fussy! It's high-quality, made to last and well worth the investment. You can see from our reviews how we go all out to provide exceptional customer service, and the result is happy customers.

Reduce your project expenses, and buy from us. You'll complete your project and save money that you can redirect to other materials you need for this project or even onto the next one!



The more you buy the more you save!