Laboy Glass 500ML Single Neck Round Bottom Boiling Flask Heavy Wall With 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware Review

We routinely use round bottom flask in our lab and I found these RB flask to be of very good quality. It feels sturdy and does not break very easily.Thank you.

Haven't had any problems with the Laboy boiling flasks. It's only seen moderate use but it looks to be a well made flask. Joints fit nicely.

Amazing quality came faster than expected there were no bubbles or cracks exactly as advertised perfect glass ground joints this is definitely the best labware especially for the price

Awesome glass as usual! Performs like any other round bottom from companies such as chemglass, just for a much lower price point!

It was well packageded, and the shipping was smooth and really fast, but as I try to show in the pictures, it has a bubble big enough to be a pintch in the flask, making it useless for many procedures, never the less, is well made and it is heavy wall. I was waiting this flask with anxiety and hope :p, going to keep it and try better luck next time.

I've found everything I've bought from Laboy to be well made and equivalent to the super-expensive stuff you can get from standard places like Fisher and Sigma. I always end up checking Laboy products first before buying glassware now.

packaged well which is extremely important when dealing with fragile lab glass. seems to be well made and the neck joint was a correct 24/40. overall, very satisfied--would not hesitate to buy again.

I tend to order SEOH and Laboy most often for a majority of my experiments and products. Laboy isn't what you have probably come expect from a Chinese manufacturer. If you need glassware that just looks and feels like awesome quality--the answer is Laboy. I love Laboy for their quality. When I need something that I expect to break like beakers I tend to get SEOH (their prices are excellent), but when I get something with the expectation of it lasting a lot of abuse then Laboy is absolutely the…

I like lab boy products a lot. problem is I am still waiting for the top for these flasks. Same order as this, but never showed

Ordered 2 250ml round bottoms and 2 100ml round bottom flasks. The 100ml were round bottoms but they shipped 2 flat bottom 250ml flasks instead.

I recall when breaking glass labware meant an annoying bill from the store room manager, so I was dubious about the quality of chemical glassware coming from China for such low prices. Laboy exceeds my expectations--the glass is of a durable thickness, without ripples or "seeds" or inclusions, the ground glass mates perfectly with my American-made glassware (the grind seems a bit more coarse but to no disadvantage) and even though I haven't stress tested the flask (e.g., pouring liquid nitrogen

By strange size, I mean the diameter is slightly smaller than 1L RBFs I've gotten from other manufacturers. They all fit my 1L heating mantle nice and snug -- this flask has a small amount of space between the mantle and flask when it rests on the bottom (5-7mm at the top of the mantle). I just made some padding out of aluminum foil and it worked fine (still has a 1L volume, somehow?)In fact, this is the first 1L RBF I've purchased from Revain that didn't break or even show any signs of…

Thick enough where they can take some abuse and not break the first time you make a mistake. I waited a few weeks to post my review so that I could use them a few times and I am very pleased with the quality I received.

It took a little longer than I expected for these to arrive, but they seem quite nice. The only thing I've done so far is check the fit with my heating mantle and they are slightly under size. That isn't a big deal in my case - the actual total volume doesn't have to be exact and they do vary between manufacturers. If I can remember to do so, I'll update my review with the actual dimensions.update: the measurement is a little tricky - my calipers don't have jaws that reach far enough to make it

Excellent boiling flask. Strong and durable. The product takes a few weeks to arrive, but is well worth the wait.order due to lab timer failing, and stir plate remaining on. The boiling flask maintained shape, and spider web cracked after the stir bar melted. No liquid came in contact with the sir plate. Excellent, and SAFE product.Any product LABOY can be guaranteed to meet your organic chemistry needs.

Laboy makes a lot of great quality glass and this is no exception. Thick glass and very symmetrical. However it wasn't quite 1000ml. But I only put about 600ml of liquid to boil at max, so i suppose it doesn't matter too much.