Butadiene Acrylonitrile or NBR

Need a formulation?

So, a product with the properties you desire does not exist?

Please, do tell us more. A lot more, if you wish to receive any meaningful suggestions.

What advice are you seeking?

This is going to work a lot better if you keep the riddles to yourself and explain what you are trying to accomplish.

What is NBR? The Ultimate Guide to Nitrile Butadiene Rubber

That is correct.

What?

Well, okay, you have identified #3 as correct, I’ll execute the customary act of voting a Good Answer.

This does not make sense to me. A fire sprinkler head made primarily of Nitrile Rubber (NBR) will surely deform, if not catastrophically fail, long before the temperatures at which a fire sprinkler head should release a fire suppression agent. NBR hoses might be usable as a piping for a suppression agent in part of a sprinkler design. The localized logistics of containment (particularly fire walls) and the anticipated type of fire to be suppressed (petrochemical, wood, powdered metal, etc.) should be known to determine whether NBR is suitable for suppressing a fire anywhere.

We don’t currently have much opportunity to visit here at CR4, so we have some time to explore this more completely.

We have a new member (Bill) who tells us he works in the fire suppression industry. We do not know if this information is germane or extraneous. I am guessing that it matters.

Our poster is based in Rochdale, Greater Manchester, England.

Through divination I surmise he is on a quest to discover some stuff that is somehow beneficial or useful to the enterprise that is fire suppression.

He tells us: “This product needs to be of the NBR make up…” If the product NEEDS to be NBR, then the quest is over. I speculate the stuff shares some desirable traits with NBR.

He tells us that he desires some stuff “…that is skin friendly…”, so I believe a stuff that is non-caustic chemistry with no VOCs delivered at a temperature range of, I dunno, between 50° and 80º Fahrenheit. This also precludes an an airless or injector type spray delivery.

Then he tells us the stuff needs to be “…thin enough to be sprayed to 6mm…” Ah, so a liquid or paste form, maybe a gel or a goo. This also implies that the stuff should be sticky, otherwise no 6mm dry or cured film/skin of stuff would develop.

And to close things out, we get “…needs to dry on contact and capable of sitting (presumed to mean some stuff stored in a reservoir, ready to be dispensed) until needed.” Well, okay… contact with what? Sit where in relation to the delivery point, and for how long?

These are just a few wild-ass guesses, your actual mileage may vary.

Probably the biggest unknown, just what is the purpose of the stuff? Is it for direct fire suppression, pipe manifold coating, field emergency repair of split pipes?

Bill, shirley you can tell us something to fill these and other gaps.

I thought I covered "gaps" in post 2.

I'm good with a hammer for getting to the truth. You seem to have the ability to massage the facts from the Limbic system of those who are given to riddles and secrecy. Let's see how you do here (I'm actually an optimist....with a hammer).

WJMFIRE & redfred; Hey there, happy Friday to you.

During my 40 odd years in the industrial door business I have had thousands of conversations with contractors, engineers, architects, end users, building code enforcement guys, fire inspectors, law enforcement guys… where they asked me a question, having clarity and purpose in their mind. Yet, their question to me comes out sort of like the OP here.

Rather than detailing individual points or segments of their query, I would give them a read back, usually framed as an interrogatory statement, that contained a couple of the buzzwords from the original but was otherwise loaded with nonsense, gibberish, and bits of whimsy.

e.g., If I were given this OP, I might ponder a bit and respond “So, you want to stop using those rattley spray paint cans of automobile undercoating to fix the holes in the water pans for your chickens that the dog chewed in the pans.”

No no no no no… not even close.

So, instead of explaining or clarifying individual shards of the original flawed question, they would abandon the original. I received a new, more detailed, better defined question.

A few times I needed to rinse and repeat the process. Did not happen very often, no big deal. The object of this entire exercise is the transfer of information, let’s work together and make that happen.

On an internet discussion forum, this technique doesn’t often work.

Hello Doorman,

Thanks for taking the time for a little breakdown.

The product i am looking to make will NOT have anything to do with the fire sprinkler industry,

Exactly. A material ready to be dispensed when needed , This will be for a unit that you would put your hands into and first have some sort of a dry powder such as talcom or equivalent sprayed on , then a layer of NBR sprayed on to form a nirtile glove.

Thanks for the feedback, we appreciate it.

Okay, spray on gloves. This brings some observations and more questions. In no particular order:

The 6mm mentioned in your original post, is this a target thickness? If yes, what is… uhmmm… how, uhhhh….

Boy, I just see many stumbling blocks here.

This would be better. Tell us, if you would, what you have already tried and found unsatisfactory. Electrostatic deposition (yikes), airless direct spray (Yikes!), increase or decrease % solids versus COTS liquid NBR, solids amendments… vehicle ratio changes, viscosities, effective robotic sprayer patterns and speeds… Air temp ranges, humidity limits…

How do you get ‘em off? To the wrist, to the elbow, to the shoulder?

Do you really intend 6mm thick nitrile gloves?

When you tell us that this is for you, do you mean Bill will use them, or do you mean this is for Jim to produce and market?

You REALLY can't expect us to read your mind. You really need to consult your rubber supplier. Don't have one, get one.

We're all old. I worked for 20 years as a materials specialist for government, but that was in the 70's-80's. I'm useless today.

Find a supplier who will help you.

How high is "up"?

How low is "down"?

Such are the words of a funny clown

Some will find it funny

Others will simply frown

(c) HTRN