#polyurethane components

[vedikabhatt007-blog]

Why Ally International is Pune’s Leading Manufacturer of Polyurethane Components

[midseo]

Extruded Rubber Strips, Manufacturer, Mumbai, India

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[cera-chem]

Presenting CERA ROOFCOTE 1500 – The Ultimate Solution for Waterproofing Perfection. This two-component, highly elastomeric flexible membrane, based on polyurethane, is meticulously crafted to cater to all types of waterproofing challenges.

High Solid Contents Superior Flexibility Strong Substrate Adhesion Excellent Crack Bridging Overcoatable with Aluminum Paint UV Stable & Non-Brittle Easy Application (Brush, Squeegee, Spray) Simple Repairs Versatile Application (Including Vertical Surfaces) Seamlessly Joint-Free Waterproofing

Elevate your waterproofing endeavors with CERA ROOFCOTE 1500, where innovation meets excellence. With its unparalleled advantages, this remarkable membrane sets new standards in the industry, conquering every waterproofing challenge with grace. Embrace the power of flexibility, adhesion, and crack bridging, as your surfaces remain protected from the elements. Seamlessly apply and experience the ease of repairs, ensuring longevity and customer satisfaction.

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[theropoda]

ok but the way david is so heavily implied to be the creator of the xenomorphs yet all the xenomorphs we see from him are fully organic with no mechanical components like the classic xenomorphs we know and love, even the protomorph looks mostly like a skeletal sinewy being, but considering the fact david is a mechanical being made up of wires cadmium polyurethane it's almost as if the last step in making the final xenomorph is having it gestate inside of and burst out from him finally letting david "birth" something and create something with his own "flesh and blood" for real so reallyhe is the most breedable pregnant man we just haven't seen it yet and in this essay i

[apas-95]

I think people forget that the Foundation has, if not a budget (such a thing being, honestly, somewhat ridiculous), then 'just' a finite number of employees, buildings, cement mixers, and *time*. For a given object there has to be a genuine reason why it is overall worth it to be performing tests and long-term containment on it rather than just launching it into the Oort cloud inside of a shipping container. They'll try to decommission the lizard because it's cheaper than the alternative, so what's so... *useful* to them about a given item is, I find, much of the hook of an article. It got completely overdone in the whole Omega 7 lolfoundation era, but it was what made so much of the roughly 2K-4K era so effective, if in a more subtle way - the megaprojects and incomprehensible lateral-thinking plots were all, ultimately, the product of an organisation with a logistical chain going all the way down into the mud a human being dressed in reflective, waterproof pants and polyurethane boots has to carry a checklist through. Ultimately, it was a fantasy world where there was still a need for international shipping label standards to make sure your warehouse attendant can receive nuclear test components from a blacksite they aren't aware of, for a researcher who thinks there are like, five anomalous items in existence total. When it doesn't have that, and just makes the foundation omnipotent... it really loses its charm for me.

[disease]

URS FISCHER / "2" / 2015 [aluminum panel, aramid honeycomb, two-component polyurethane adhesive, two-component epoxy primer, galvanized steel rivet nuts, acrylic primer, gesso, acrylic ink, acrylic silkscreen medium and acrylic paint | 96 x 76 ⅞"]

[materialsscienceandengineering]

Polymers, amirite?

(I am a biotechnologist that would very much like to make us better at recycling plastics by making microbes eat them and spit out their component bits so we can reassemble them as needed)

Polymers for sure! 💜 (I say as someone who took one organic chemistry class and immediately locked in on the metals/ceramics track at my undergrad institution...)

No, but seriously, polymers are cool! Polysiloxane anyone? I also have an irrational fondness of polyurethane because it's fun to say. And who's not a fan of rubber?

(I think we would all like to get better at recycling plastics for sure, but I think there's good progress going on on that front!)

[brehaaorgana]

As I've been compiling my fiber/textile composition megalist as part of my personal journey to prioritize slow fashion & natural fibers, I have stumbled across something.

I knew vaguely that there have been companies making trial vegan leathers derived from mushroom or pineapple (brand/trade names Mylo and Piñatex, for example).

What I did NOT realize is that these companies omit a key component in their fabric production.

On the Mylo website, if you click "material" you get a very simplified 4 step explanation of their mushroom leather. Step four:

How Mylo is Made: Surface texture and finishing is applied by a Leather Working Group (LWG) gold-rated tannery for an unmistakable resemblance to traditional leather.

Neat. Quick question!

What is the surface finishing made out of?

Is it actually a polyurethane resin coating, like MOST other artificial leathers on the market which already exist? Maybe! Hard to say!*

But right now, if you buy artificial leather that is labeled as being PU, polyurethane, or even PVC/vinyl (unfortunately pu/pvc overlaps and also is sometimes used interchangeably in confusing ways) — MOST of the time it is a composite fabric that is a textile coated in poly-based resins, and MOST manufacturers do not list the fiber content of the base textile backing.

You could buy artificial leather using a cotton backing and it will just say it's composed of polyurethane.

So these new types of vegan/artificial leathers derived from plants which do NOT state the composition of the coatings they're using may still, at the end of the day, just be a plastic.

it's probably still plastic-leather!

* until those companies bragging about their plant-leathers state what sealants/coatings they use to finish their product and make it into a workable textile, I'm going to just assume they're still making PU/PVC leathers, just with plant fiber backings.

And unless they tell us what this coating is, we have zero idea how it impacts the environment, the manufacturers, or how it biodegrades.

So not only are these plant leather alternatives currently experimental, expensive, and not accessible — I have no way to prove they're not still plastic.

[gstpu]

👟 Ever wondered how your insoles are made? Enter the world of industrial chemistry and materials science with a full behind-the-scenes look at a PU system in action.

From liquid components to high-resilience foam, this is how comfort is engineered: → Polyurethane mixing (polyol + isocyanate) → High-speed blending and mold injection → Automatic foaming and expansion → Final shaping and demolding of the insoles

This is industrial beauty. This is polymer magic. If you're into manufacturing aesthetics, satisfying processes, or just love seeing raw materials turn into something useful — this one’s for you. 📌 Save this for your science, design, or satisfying process tag collection.

#PUfoam #PUsystem #Polyurethane #InsoleMaking #IndustrialAesthetic #HowItsMade #Manufacturing #FoamingProcess #TumblrTech #MaterialScience #ProcessPorn #FootwearDesign #GSTPU

[vedikabhatt007-blog]

Injection Molded Plastic Components: A Comprehensive Guide

[midseo]

Anti Vibration Mounts, Manufacturer, Mumbai, India

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[spacetimewithstuartgary]

Artemis III core stage receives thermal protection coating

NASA completed another step to ready its SLS (Space Launch System) rocket for the Artemis III mission as crews at the agency's Michoud Assembly Facility in New Orleans recently applied a thermal protection system to the core stage's liquid hydrogen tank.

Building on the crewed Artemis II flight test, Artemis III will add new capabilities with the human landing system and advanced spacesuits to send the first astronauts to explore the lunar South Pole region and prepare humanity to go to Mars. Thermal protection systems are a cornerstone of successful spaceflight endeavors, safeguarding human life, and enabling the launch and controlled return of spacecraft.

The tank is the largest piece of SLS flight hardware insulated at Michoud. The hardware requires thermal protection due to the extreme temperatures during launch and ascent to space—and to keep the liquid hydrogen at minus 423 degrees Fahrenheit on the pad prior to launch.

"The thermal protection system protects the SLS rocket from the heat of launch while also keeping the thousands of gallons of liquid propellant within the core stage's tanks cold enough. Without the protection, the propellant would boil off too rapidly to replenish before launch," said Jay Bourgeois, thermal protection system, test, and integration lead at NASA Michoud. "Thermal protection systems are crucial in protecting all the structural components of SLS during launch and flight."

In February, Michoud crews with NASA and Boeing, the SLS core stage prime contractor, completed the thermal protection system on the external structure of the rocket's liquid hydrogen propellant fuel tank, using a robotic tool in what is now the largest single application in spaceflight history.

IMAGE: Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s final assembly area on April 22, 2025. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. Credit: NASA/Steven Seipel

The robotically controlled operation coated the tank with spray-on foam insulation, distributing 107 feet of the foam to the tank in 102 minutes. When the foam is applied to the core stage, it gives the rocket a canary yellow color. The Sun's ultraviolet rays naturally "tan" the thermal protection, giving the SLS core stage its signature orange color, like the space shuttle external tank.

While it might sound like a task similar to applying paint to a house or spraying insulation in an attic, it is a much more complex process. The flexible polyurethane foam had to withstand harsh conditions for application and testing. Additionally, there was a new challenge: spraying the stage horizontally, something never done previously during large foam applications on space shuttle external tanks at Michoud. All large components of space shuttle tanks were in a vertical position when sprayed with automated processes.

Overall, the rocket's core stage is 212 feet with a diameter of 27.6 feet, the same diameter as the space shuttle's external tank. The liquid hydrogen and liquid oxygen tanks feed four RS-25 engines for approximately 500 seconds before SLS reaches low Earth orbit and the core stage separates from the upper stage and NASA's Orion spacecraft.

"Even though it only takes 102 minutes to apply the spray, a lot of careful preparation and planning is put into this process before the actual application of the foam," said Boeing's Brian Jeansonne, the integrated product team senior leader for the thermal protection system at NASA Michoud.

"There are better process controls in place than we've ever had before, and there are specialized production technicians who must have certifications to operate the system. It's quite an accomplishment and a lot of pride in knowing that we've completed this step of the build process."

The core stage of SLS is the largest NASA has ever built by length and volume, and it was manufactured at Michoud using state-of-the-art manufacturing equipment. Michoud is a unique, advanced manufacturing facility where the agency has built spacecraft components for decades, including the space shuttle's external tanks and Saturn V rockets for the Apollo program.

[foundationsolution1]

The Power Of Polymer: Unfolding The Magic Of Polyurethane Foam Production

INTRODUCTION:

In the dynamic and evolving world of polymer science, one name specifically stands out due to its versatility and vast applicability – Polyurethane. A byproduct of the mind-boggling chemical reaction between two liquid materials, polyurethane is a unique type of polymer that effectively transforms into a foam. This article endeavors to offer you a detailed look into the exciting world of polyurethane foam production

THE DYNAMIC DUO:

Polyurethane foam is produced when two chemically distinct liquid materials – commonly referred to as the “”A”” component and “”B”” component – are combined under specifically controlled conditions.

The “”A”” component, or Polymeric MDI (methylene diphenyl diisocyanate), is a reactive isocyanate that boasts a relatively low viscosity level, enabling it to mix flawlessly with the “”B”” component. It has a brownish coloration and often exudes a slightly sweet smell.

Meanwhile, the “”B”” component, also known as Polyol, is a polyether compound that is generally less reactive than its “”A”” counterpart. It is characterized by a pale, almost transparent color and presents a tasteless, odorless profile.

POLYURETHANE PRODUCTION:

Let’s delve into the fascinating process through which these two distinct liquids join forces to produce the mighty polyurethane foam.

When combined, the polyether polyol and the polymeric MDI kickstart an exothermic chemical reaction that generates a considerable amount of heat. During this process, tiny gas bubbles are formed, which get trapped within the polymer structure, eventually giving rise to what we commonly recognize as foam. This intriguing process is commonly referred to as “”foaming.””

The reaction’s speed and the cell structure’s quality are heavily dependent on the specific quantities and properties of the A and B components. Manipulating these parameters allows for the production of a wide variety of foam types from rigid and semi-rigid to flexible. Additionally, various catalysts and surfactants can be added to control the cell structure’s size and distribution, as well as the reaction speed.

The transformation process from a liquid state to a solid, foamed state is surprisingly quick – often taking less than a few minutes. However, it’s noteworthy to mention that the foam continues to cure and reach its complete strength over the course of a few hours or even days.

APPLICATIONS OF POLYURETHANE FOAM:

The versatility of polyurethane foam is extraordinary. From furniture and bedding to automotive applications, thermal insulation in construction, and even in the footwear industry, polyurethane foam has spread its roots far and wide.

UNDERSTANDING THE SCIENCE:

The combination of a polyether polyol and a polymeric MDI generates not just heat but also a new product – urethane. Urethane forms strong, resilient bonds that contribute to the flexible, durable nature of the resultant foam. This is what makes polyurethane an excellent choice for various applications that require durability, flexibility, and excellent thermal and acoustic insulation properties.

In conclusion, the creation of polyurethane foam from two liquid materials is a mesmerizing example of polymer formation, which encapsulates the dexterity and capability of synthetic chemistry. By manipulating the compounds’ properties and the conditions under which the reaction occurs, scientists and engineers have managed to expand the realms of possibility, thereby furthering the boundaries of modern industrial applications. Thus, polyurethane foam not only offers an excellent material for various purposes but also profoundly echoes the power and potential of polymer science.

Tagged Foundation Solutions, Polymer, Power Of Polymer

[curlygrant44]

do you get scared when you see fire?

"You can't have fire on a ship," he mutters, confused.

He hasn't seen fire since he left Earth-

An explosion isn't the same, that instant of impact his eyes couldn't even register, something searing hot filling the space around him faster than he could even process until his whole body, his everything, was encased in agony-

AB foam, or two-part foam, is a polyurethane foam created by mixing the two components which bubble up and solidify thanks to an exothermic reaction.

An exothermic reaction is a chemical process that generates heat.

When the cockpit was smashed in, the foam sealed it off to keep the atmosphere in but the amount deployed was proportional to the magnitude of the impact-

Not enough space.

Too much heat.

The burning, for what felt like an eternity, fading in and out of consciousness as agony became too much for his psyche to bear, only for his body to jolt itself back awake when his heart rate dropped too much.

He never had to suffer that. His body is still whole and unharmed.

But Curly remembers it still, because even if his body never suffered like that, the nightmares showed him how it felt anyway.

It's why he could never stand to talk to any of them.

He knows too much about how it must feel, and the sight of them, the knowledge that it could happen to him someday, is just too much for him.