If you own a 1960-1969 Chevy Corvair you know or should know about Viton O rings. If your Corvair doesn't have them you will be leaking oil, lots of it. If your Corvair has them, you still leak oil, just not from the O rings.

Very informative videos. Thank you for doing this. It is very difficult to get good reliable information on such topics as o-ring materials. Keep up the good work.

Underrated channel with great information

@theo-ringguy6172

4 жыл бұрын

Thanks for the comment and support. Unfortunately, we have decided to cease the operation. Jonathan will establish a new channel to share my passion and knowledge in rubber technology.

Very good information and well presented. Congratulations!

@theo-ringguy6172

3 жыл бұрын

Thank you!

Great videos. I didn't see any videos in this detail about rubber on KZread or net. Thanks

@theo-ringguy6172

5 жыл бұрын

Thanks for supporting us. We will keep working on it. If you have any questions and cool topic please share with us. :)

Hey man excelent videos, Im trying to know what tipe of nitrile rubber should I use for cutting tyre stickers for cars, they should withstand road conditions and dont lose their color

Krytox has become very popular for lubricating parts in high-end custom computer keyboards. I'm sure plenty of people would be interested in learning about it.

Wow this is underrated channel...Hallo my friend, can you info me suggested supplier for FKM rubber sheet can provide certificate? We also need adhesive glue for bonding to steel surface

thanks, very instructive video!

Please, how is sulfuric acid dissolved in latex in order to vulcanize liquid latex materials for dipping molds?

Hi, I've installed Viton (HTCR) pinion seal in my cars differential as it was leaking. Some sellers that are selling the exact same pinion seal (part number 460448V) say that because I used a Viton seal I must use fully synthetic differential oil and others say that I can use either a mineral based differential oil or a fully synthetic diff oil. Could you please clarify which oil I should be using with the Viton seal ? thanks and keep up the great videos

@theo-ringguy6172

3 жыл бұрын

Dear Nick, Chemical compatibility perspective, Viton works well with mineral and synthetic oil. However, Viton as a mechanical seal typically leakage is caused by mechanical failures such as abrasion, wear, and tear. There are thousands of the formulation of Viton, it could mitigate some of the mechanical weakness with some limit. If you replaced the seal often, it would be nice to check the rod or seal housing whether it has some defect on the surface.

@nickristev7863

3 жыл бұрын

​@@theo-ringguy6172 Thanks for the tip. I've checked the pinion flange shaft that the pinion seal runs on and there was no grooves on the shaft. The original seal has a black rubber appearance which I am 90 percent sure is a polyacrylic rubber (ACM). I'm pretty sure that it leaked because I put full synthetic gear oil in the differential. The Ford dealer I spoke to as well as all the gear oil manufacturers recommend I put fully synthetic in and that's were I made the mistake. I subsequently found out from the manufacturer of the differential your supposed to only use mineral gear oil. Anyway, I appreciate the advice.

Thanks for the informative videos!!! i just entered the rubber industry in Indonesia, it’s hard to find “rubber edu channels” like this one! Hopefully, you came back and makes more videos! Hoho🔥🫰🏻

@theo-ringguy6172

Жыл бұрын

Welcome to the rubber industry, I am glad this help you. We currently have some constain so we can no longer produce video. I will try my best :P

Hi! Can you pass along any tips on molding FKM? Specifically, transfer molding! I am sampling some out and it is proving to be more difficult to mold over other rubbers. It does now appear to be flowing into the cavity smoothly and parts are coming out with lots of knit lines and blisters. Any advice or general tips when molding FKM would be greatly appreciated. Awesome video, very well detailed!

@theo-ringguy6172

3 жыл бұрын

Thanks for watching, I probably can't not share too many processing knowledge due to IP concern. 1. Type of FKM is important factor, you need to look at it's rheology data. Make sure the flowing time is sufficient to cover the old cavity. 2. Bubble can be alleviate by using vacuum press. 3. More cavity to load raw material is also the key. Moldflow simulation is a great tool to design mold. It's not cost effective to run 100% accurate, use it as a trouble shooting tool can reduce re-tooling time.

@bscrubber

3 жыл бұрын

Increase mc wax quantity and try . It increases flow in cavity

@rajeevchauhan1879

11 ай бұрын

Hello sir Please try with STRUKTOL WS280, it will improve the flow and mold releasing agent too.

Hello sir, can you please make a video on how to check fluorine content in viton cured sample or oring. Please

@theo-ringguy6172

3 жыл бұрын

This is a great question, the easiest/cheapest way to test fluorine content of an FKM is using specific gravity on raw gum/raw polymer. It would be very challenged in final cured product to determine, but it is not impossible. I will work on a content about it. :P

Hi Could you talking about which kind of filler in FKM Beside Wollastonite Do you have any other suggestion ?

@theo-ringguy6172

5 жыл бұрын

Thanks for the response. It sounds like you are looking for a filler besides carbon black. Wollastonite/Calcium metasilicate can enhance tear resistance in a high-temperature application. In terms of replacement, it really depends on your application and requirement. Typical non-carbon filler such as Barium sulfate(BaSO4), Calcium carbonate(CaCO3) and Titanium dioxide(TiO2).

You say that Viton does not work well with gear lubes with anti friction additives. What is the exact problem with that? Our supplier says that it should be ok. Thanks in advance.

hi thanks for the beautiful video. beautiful explanation. may i know why FKM sticks too much to metal open mill while compounding ?

@theo-ringguy6172

5 жыл бұрын

Dear jayantakumarborah, It really depends on the formulation and the base polymer type. In the US typically we call it "tackiness". It is related to the curing system. Bisphenol type typically has more of this issue.

@jayantakumarborah

5 жыл бұрын

@@theo-ringguy6172 hi how to overcome this problem? yes we use FKM from 3M ,bisphenol curing system with MgO and CaoH2

@theo-ringguy6172

5 жыл бұрын

@@jayantakumarborah The method actually very like cooking the egg on a pan. How to reduce the stickiness on a skillet pan, add some oil and make it hot enough. To translate to the rubber world: Under the assumption on you have a smooth, dry, warm open mill roller. 1. Increase the open mill temperature set point higher. 2. Increase the amount of process aid, such as wax. or You need to change a polymer. :P Hopefully, these approaches can resolve your issue.

@user-ho4lv7wk1s

4 жыл бұрын

Increase the amount of wax，improve sticks roller,ws280 better than c/wax,,,Some low Mooney rubbers are easier to stick to rollers, you can add some high Mooney 。

@MrAbah105

3 жыл бұрын

@@theo-ringguy6172 what is the best adhesive glue for cold bonding neoprene/rubber/ FKM to steel surface sir?

Thank you for a valuable infomation! In which material of ASTM, is the meaning of FKM written? F:Fluoro K:Kohlenstoff(Carbon) M:Saturated backbone rubber

@theo-ringguy6172

3 жыл бұрын

Yes, correct. Sorry for a very late reply, our company closed due to global uncertainty. I will make this channel to personal own, it might take me a few months. Thanks for your support :)

@user-kb5vp7yz3m

3 жыл бұрын

Thank you for your reply. But what I want to know is I would like to know the material (evidence) that states that "K" means "Kohlenstoff". If you know, please let me know. This is a question since I dealt with fluororubber more than 30 years ago.

@theo-ringguy6172

3 жыл бұрын

@@user-kb5vp7yz3m Dear Matsumura San, You are exactly correct. It seems to be no ASTM statement indicated "K" means "Kohlenstoff." It is indeed an interesting question.

@user-kb5vp7yz3m

3 жыл бұрын

@@theo-ringguy6172 Thank you for your reply. I understand. I would like to make the search for evidence my lifework.

@MrAbah105

3 жыл бұрын

@@theo-ringguy6172 please advise me, im looking neoprene or rubber sheets for pipe clamp underwater. Service temperature -20C to 110C. Please advise me suggested supplier can provide test report or certiricate

I don´t understand one little thing. If want to produce my own compound could I just buy a Fluoroelastomer from 3M and mix it with other things. Or do I need to start from the monomer you mentions. Thank you. This video is the best on KZread!

@theo-ringguy6172

5 жыл бұрын

Dear RealCellstar, This is a very inspiring topic we can explain! Thanks for the questions. We can explain the roles of the rubber supply chain. If you want to create your own compound, you should buy the appropriate grade of "raw gum" from Manufacturers such as Solvay, 3M or DuPont. These big chemical companies typically did not perform "compounding/mixing", unless special cases. There are a couple of ways to develop your own compound. 1. Actually, in the rubber industry, you can find "compounder" to develop the compound for you. These compounders mix your formulation. However, you will need to find a molder to mold your final product. 2. Or you can reach integrated molder like Ascend Sealing, we can develop compound, mold and manufacture the final product. Let us know if you have any questions.

@RealCellstar

5 жыл бұрын

Fantastic and fast answer. You have my like and sub. Thank you very much :)@@theo-ringguy6172

@RealCellstar

5 жыл бұрын

Per example Viton A or FL2320 are the "raw gum"?@@theo-ringguy6172

@theo-ringguy6172

5 жыл бұрын

RealCellstar , yup, they are raw gum. The raw polymer without any filler and additive.

Good informations, we have a doubt, Need testing equipments about -18°C with N2 @ 10000psi Wich Better Rubber FKM or HNBR 90 ? Algo high-temp about 130°C.

@theo-ringguy6172

Жыл бұрын

Dear Souza, I have to say "it depends". What characteristic you are looking for? My guess is, 10k Psi N2 it seems to be just a static seal not a dynamic seal application. So you are probably looking at compression set and force retention. Sometime material can just reach some limitation combine a proper design on seal groove/housing accompany by some plastic retainer can also improve some performance.

Hello, Could you please explain which grade of Viton/any rubber material is suitable for High-temperature food contact application? It should not change its properties when in contact with Oil, Acidic, and basic substances over 200° C.

@theo-ringguy6172

4 ай бұрын

Dear friend, I would recommend you use GLT grade FKM or perforouro elastomer/FFKM. It will cost you more for sure. Other requirement you need to determine is the leachable requirement or other regulatory requirement.

Is there any oil for reduce Viton hardness please

@theo-ringguy6172

2 жыл бұрын

carnauba wax is a good and cheap additive, however, you need to look at your end use application carefully.

Is it bad for the environment similar to Teflon that it doesn’t break down causing cancer, thyroid problems etc?

@theo-ringguy6172

Жыл бұрын

Unfortunately, yes. The entire fluoro industry is evolving to produce more environmentally friendly product also explore alternative material. I have good faith on them. :)

Hi

Intesrting

rich content

@theo-ringguy6172

3 жыл бұрын

Thanks for your support

Terrible sound here.