Fire Tests on HDPE (High-density Polyethylene) and Spray on Polyurethane Foam Insulation

Grinnell Mutual performs fire tests on HDPE (High Density Polyethylene), untreated, treated with Contego intumescent acrylic copolymer emulsion. Grinnell also performed tests with polyurethane spray foam insulation untreated vs. treated with Contego using a fuel load similar to real-world conditions.

[@StateCrime]

Grenfell was fitted with polyethylene, according to BBC.

[@Ariccio123]

Sidenote: good to see that it works even without perfect coverage. I'm going to be hand applying some in my attic, and it's hard to get 100% coverage.

[@hadleymanmusic]

Ok then you did whats called " accellerated"

[@hadleymanmusic]

Are there additives the AB parts can be doped with?

[@hadleymanmusic]

How big does it swell up?

[@robingo6257]

So the polyethylene material is strong at fire or not?

[@Irilia_neko]

Polyethylene is very bad at fire, just buy a HDPE or LDPE product and try to burn it, you will see it burn very well (this don't emits dioxin at least)

[@hadleymanmusic]

Ethelyne is not just by the sound of ethyl

[@hadleymanmusic]

Poly ethelyne foam? Ethelyne sounds like plastic fire

[@hadleymanmusic]

I never knew about this foam

[@hadleymanmusic]

Bout like vinyl siding should be outlawed too

[@JonMartinYXD]

It is a plastic. It is foamed polyethylene. Familiar with pool noodles? Foamed polyethylene. It comes in a wide variety of forms depending on the molecular weight of the PE, how 'foamy' it is, closed cell or open cell, etc.

[@Looksurprised]

No way to contain the fire..... in 3 seconds fireman puts the fire out

[@canu999]

Your comments on the polyurethane foam are highly misleading. Polyurethane foams comes in various characteristics. Contego might be a good fire retardant but this is false marketing.

[@Irilia_neko]

Can you explain your point of view ?