Topic: U-Pol Easy (Read 9315 times)

tizdaz · « **on:** November 27, 2016, 10:55:29 pm »

Hiya guys :)

After speaking with Andy from Models By Design, he recommended i use U-Pol Easy for all my wood to fibreglass bonding as this is what he uses, so i'm going to go down that route, now my only issue is...

It comes supplied in 3.5L pots & 2x Sachets of hardener.. so basically i can only do 2 mixes! as each sachet is for doing 50% mix & the sachet isn't re-sealable. I know for someone like Andy who probably goes through this stuff like hot cakes it's not an issue, but for myself who will only be using small amounts at a time, i will end up wasting ALOT!

Is the cap on the hardner re-sealable (like a screw cap? or does it just snap off?) as ive read that once youve opened it you have to use it?

Cheers!

Nemo · « **Reply #1 on:** November 27, 2016, 10:58:44 pm »

Surely Andy knows?

Stavros · « **Reply #2 on:** November 27, 2016, 11:20:00 pm »

WOA stop right there....the ratio of filler to hardener is as follows

A golf ball size of filler to a garden pea
.....the reason you got 2 hardeners is simple....it is for the full can.

You mix as little or as much as you want.....the hardener wont go off even if you dont put the cap on the sachet

YOU DONT and I repeat YOU DONT have to mix all the filler can 8n 2 goes.......pm sent

Dave

tizdaz · « **Reply #3 on:** November 27, 2016, 11:51:10 pm »

Quote from: Stavros on November 27, 2016, 11:20:00 pm

WOA stop right there....the ratio of filler to hardener is as follows

A golf ball size of filler to a garden pea
.....the reason you got 2 hardeners is simple....it is for the full can.

You mix as little or as much as you want.....the hardener wont go off even if you dont put the cap on the sachet

YOU DONT and I repeat YOU DONT have to mix all the filler can 8n 2 goes.......pm sent

Dave

ahh cheers fella!

Its just i read a review for it on halfords that a customer wrote..
"The only improvement to provide better value, for me, would be to divide the additive into smaller sachets, please, as the 2 currently included each makes up 50% of the product - which is a lot more than I need at one time and saving an opened packet of chemicals for another day is not so clever."

So i thought you had to use a whole sachet at same time which would be a 50% mix! ..but as you said i don't so will pick a tin up tommoz! :)

Subculture · « **Reply #4 on:** November 28, 2016, 10:13:32 am »

Poor choice of adhesive IMO, but each to their own.

Fastfaz · « **Reply #5 on:** November 28, 2016, 10:42:51 am »

Listen to Stavros he knows what he's doing. From experience, i.e. being distracted whilst towing a large heavy tow, I managed to ram the concrete oil rig at Balne moor with one of my tugs result bow deck area separated slightly from the hull, the deck supports had been stuck on with car body filler I now stick them on with epoxy then form a fillet underneath the timber support belt n braces! It seems to work well as you get lots of banging and bashing towing stuff. I also fit MMM's 10 mm rubber fender all the way around the hull stuck on with contact adhesive, this has not failed as yet. Hope this helps.
Good luck with the build,
Pete.

captain bligh · « **Reply #6 on:** November 28, 2016, 07:53:07 pm »

Hi all
If you want something that really sticks use West epoxy system and mix in colloidal silica with it to make thick a paste as you like

.Not cheap but very strong.
Mike

RantandRave · « **Reply #7 on:** November 28, 2016, 08:05:05 pm »

Quote from: Subculture on November 28, 2016, 10:13:32 am

Poor choice of adhesive IMO, but each to their own.

Andy really knows his stuff!

ballastanksian · « **Reply #8 on:** November 28, 2016, 09:27:28 pm »

The lid should snap off the top of the hardner nozzle and then can be turned around and screwed on. You can use more hardner to speed the setting time up, but sometimes, if you are applying a large area you can carve partially cured filler of saving lots of sanding. Its a trick I leanrt from a modelmaker whilst on a model making course in the ninties.

If you bought your filler from a store, you should also be able to buy extra hardner sachets should you use it all up before the filler is used up!

tizdaz · « **Reply #9 on:** November 28, 2016, 10:20:43 pm »

hi guys :)

ok i've picked up some U-Pol Easy 1, but i'm in a little bit of a dilemma!

does it have a strong smell/odour!? I ask as i'm building my tug in a spare room inside my home! so last thing i want is my home stinking of it :( Another option that someone has recommended to me is this stuff:

http://www.mbfg.co.uk/bonding-structural-adhesives/2048.html?gclid=CjwKEAiAyO_BBRDOgM-K8MGWpmYSJACePQ9CJvbe-IXJFJ8Zspwi1biBE1j634PbKoF75kfaP4RFxxoCysrw_wcB which is an epoxy filler paste & solvent free, yup its expensive... but if it means i have to pay a bit more so my home dont stink and it wont be harmful to myself as i will be working in a small area then maybe this be a better option?

heres some more info on it: http://www.hempel.co.uk/en-GB/marine/products/hempels-epoxy-filler-35250

Like i say, its expensive (about £35 per Litre) ...thoughts?

Cheers :)

ballastanksian · « **Reply #10 on:** November 28, 2016, 10:25:22 pm »

If it is like the Holts product then sadly yes. At all phases from putty to the dust you are sanding off, it has an odour

tizdaz · « **Reply #11 on:** November 28, 2016, 10:37:20 pm »

Quote from: ballastanksian on November 28, 2016, 10:25:22 pm

If it is like the Holts product then sadly yes. At all phases from putty to the dust you are sanding off, it has an odour

If its not too strong i don't mind but its more on the safety side of things as i'm guessing u-pol isn't solvent free?

Stavros · « **Reply #12 on:** November 28, 2016, 10:42:03 pm »

AS I HAVE SAID TO YOU PHONE ME

Dave

tizdaz · « **Reply #13 on:** November 28, 2016, 10:42:58 pm »

Quote from: Stavros on November 28, 2016, 10:42:03 pm

AS I HAVE SAID TO YOU PHONE ME

Dave

sent you a PM fella :)

Mark T · « **Reply #14 on:** November 29, 2016, 06:56:41 am »

Yes it does smell but it goes very quickly. Personally I use in well ventilated room which in my case is opening all of the windows

captain bligh · « **Reply #15 on:** November 29, 2016, 07:34:38 am »

At the end of the day U pol is a filler not a glue

Fastfaz · « **Reply #16 on:** November 29, 2016, 11:08:52 am »

Virtually all the adhesives and fillers you will need to use during the build are going to smell, Upol smells like cellulose paint when you open the can this soon goes or you will get used to it. Building indoors how tolerant is S.W.M.B.O? close the room door and open the windows or perhaps a small extractor fan. Where do you intend to paint the boat (its big so lots of paint) spraying indoors you will get a strong smell.
Good luck,
Pete.

Subculture · « **Reply #17 on:** November 29, 2016, 05:52:34 pm »

Epoxy has very little smell, certainly much less than polyester products, which pong to high heaven.

unbuiltnautilus · « **Reply #18 on:** November 29, 2016, 06:40:32 pm »

Here is a poser then. I had the good fortune to work on a R2D2 prop, that was surplus to the effects companies needs, and was passed on to a private collector. It had to have been laid up, if not constructed during the nineties as a display piece, in GRP. It had been assembled with what looked outwardly like standard car filler, big blobs of it and off white, with a filler feel to it. However, it was absolutely rock hard. I was unable to chisel it off as you would expect to be able to do with standard filler. I would say it had the strength of an epoxy putty like Milliput, rather than the easy sand or carve finish of normal filler, which it outwardly resembled..any thoughts?

Subculture · « **Reply #19 on:** November 29, 2016, 07:15:38 pm »

Polyester putties always give off a distinctive smell when you work them, even after curing. I'm sure you're well familiar with it. Epoxy products tend to have very little odour when worked.

My main choices of adhesives for wood, are PVA, cyano and epoxy. However I rarely work with wood, as it isn't the best material for subs. For metals and plastics I like the modified acrylics, as they are incredibly strong and waterproof.

ballastanksian · « **Reply #20 on:** November 29, 2016, 08:57:30 pm »

Quote from: unbuiltnautilus on November 29, 2016, 06:40:32 pm

Here is a poser then. I had the good fortune to work on a R2D2 prop, that was surplus to the effects companies needs, and was passed on to a private collector. It had to have been laid up, if not constructed during the nineties as a display piece, in GRP. It had been assembled with what looked outwardly like standard car filler, big blobs of it and off white, with a filler feel to it. However, it was absolutely rock hard. I was unable to chisel it off as you would expect to be able to do with standard filler. I would say it had the strength of an epoxy putty like Milliput, rather than the easy sand or carve finish of normal filler, which it outwardly resembled..any thoughts?

Having always used Milliput as I do not use large quantities, I never before looked for larger amounts. I found this on the web http://antel.co.uk/popular/10-epoxy-putty.html which is for 2litres of putty. So, Your R2D2 could have been shaped with something very similar.
http://antel.co.uk/popular/10-epoxy-putty.html

Nemo · « **Reply #21 on:** November 29, 2016, 09:57:06 pm »

Quote from: captain bligh on November 29, 2016, 07:34:38 am

At the end of the day U pol is a filler not a glue

Yes, but he seems determined to use a filler for an adhesive!

Stavros · « **Reply #22 on:** November 29, 2016, 10:16:50 pm »

No he is not lads spoke to him on the phone last night and he now knows what to use, and not use so to speak

Dave

tizdaz · « **Reply #23 on:** November 29, 2016, 10:39:41 pm »

Quote from: Stavros on November 29, 2016, 10:16:50 pm

No he is not lads spoke to him on the phone last night and he now knows what to use and not use so to speak

Dave

Yup, cheers for that Dave, much apppreciated :)

@Nemo I wasn't determined, it was just that when I went to pick up my hull the guy who built it recommended to use U-Pol Easy as he said that is what he uses all the time for bonding the wood to the fibreglass hull with no issues, originally I planned to use P38/P40, after having a good chin wag over the phone last night with Dave, i'm now going to settle on P40 & use the filler for it's recommended purpose so it's all good :)

Nemo · « **Reply #24 on:** November 30, 2016, 11:28:05 am »

Tizdaz, fair enough, but this just goes to show that asking a question will sometimes bring conflicting replies and advice - it is up to you to decide which advice to take. We had all this out on the P40 thread did we not?
Even professionals such as Dave and the maker of your hull appear to differ in their opinions. IMHO!
Bob.

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Author Topic: U-Pol Easy (Read 9315 times)

Stavros

Stavros

Stavros