Sikaflex

Legendts · Senior Member

Sikaflex

GaryKelly · Guru

In case my question about Sikaflex (as mentioned in Vic's thread about his water tank) gets lost there, I figured I'd better start a new thread. My porta potti lid/seat has a small crack in the plastic rim. It doesn't affect the toilet seat when the lid is raised, but the lid also acts as an extra seat when closed and the potti is not in use. If any weight is applied to the lid/seat (like me sitting on it) the crack widens (spare the jokes, please) and threatens to become worse. Soooooo, is Sikaflex good for patching cracked plastic so that the cracked area is returned to its original strength?

As with most cracks, it's hairline so there's not much contact area to work with. It's probably about half an inch long (vertical), and only opens when weight is applied to the lid.

The alternative, if it's not worth fixing (or can't be) is just to leave it as it is and forget about it. It doesn't affect normal use of the potti.

copper1 · Guru

Hey Gary, MMMMM Sikaflex I would not use as I don't think it would hold. Do you know any panel beaters in your area?? if so and if they are like the bloke I use, as I restore old cars, they have a plastic weld gun probably only cost you $10-20 to have a permanent repair.

hako · Guru

I'm with copper1, Sikaflex would have too much flex. If the plastic is meltable you could use a soldering iron to melt the back of the crack and kind of load the crack with melted plastic or try a panelbeater.
I reckon you were pretty game posting a thread on this subject!

Regards

Denis

bill12 · Guru

I would go with the super glue or the soldering iron.Just don,t sit on the thing while the glue is wet...............Bill

justcruisin01 · Guru

GaryKelly wrote:

As with most cracks, it's hairline so ;

Shave it! LOL.

!cid_948FC5C320D84F7780DC8F1BC94A9A0D@johnpc.gif

JC.

QueenKombi · Senior Member

Just wondering if you could put a plastic patch made from down-pipe plastic under the crack and stick it there using some of that blue plumber's glue. It does need to be primed first though, but someone always has a little left over from jobs. It's incredible stuff and would give a very resilient bond, but of course there may not be enough room under the lid for it?

The reason I suggest down-pipe plastic is because you can get it in various sizes to suit the curve. I also think it might be a similar type of plastic to the porta-potty seat. I'm sure a plumber working on a house site would help you out with a scrap or two and maybe even some glue.

Dougwe · Chief one feather

Wombat just rang me said there was a crack in you question Garry and asked if I would post it as he has trouble with his poota.

I cracked up with laughing.

Sorry mate.

hako · Guru

QueenKombi wrote:
Just wondering if you could put a plastic patch made from down-pipe plastic under the crack and stick it there using some of that blue plumber's glue. It does need to be primed first though, but someone always has a little left over from jobs. It's incredible stuff and would give a very resilient bond, but of course there may not be enough room under the lid for it?

The reason I suggest down-pipe plastic is because you can get it in various sizes to suit the curve. I also think it might be a similar type of plastic to the porta-potty seat. I'm sure a plumber working on a house site would help you out with a scrap or two and maybe even some glue.

That's a great idea QueenKombi - plus the bit of plastic downpipe is mouldable when heated with a hairdryer or heat gun - you could cut a piece of plastic to suit the job, heat it and mould to the underneath bit, wait to cool and then glue with the blue plumbers glue.

I'm pinching that idea as I can see many uses for it when bodgying stuff up.

Regards

Denis

03_troopy · Guru

I'd also go with the super glue, as it seems to work well on most plastics. Gently force the crack open (in the toilet seat) and apply a thin coat of superglue to both surfaces of the crack. Then let it come back together, or firmly hold it back in position, for about 30 seconds till the glue has definitely set.

Best of luck

copper1 · Guru

I have tried Pipe Solvent cement once in the past to fix up plastic, but it would not hold the reason being is the solvent reacts with the different types of PVC. There are three plastic plumbing pipes that are put together with cement. They are ABS, PVC, and CPVC pipes. They dont really call it glue, but solvent-cement. None of the plumbing cements are interchangeable, each one is specific for its pipe therefore I doubt if the solvent cement would work on a toilet seat.

GaryKelly · Guru

Did someone mention toilet seat? Does someone have a crack in the toilet seat? It ain't me, despite popular opinion. I have a crack in the toilet seat COVER! So I decided a picture is worth a thousand words...

portapotti 002.JPG

bill12 · Guru

I wouldn,t worry about it. Just super glue it. Its not where you put the short and curlies..........Bill

Dougwe · Chief one feather

Now this will sound not very nice but I can't think of anything else to say so sorry.

Garry I reckon if you spread that crack apart a little and put 'Arildite' glue in it then let it join back together. I just think that will solve your problem. I don't really think super glue will work. Don't get the 5 minute Arildite though, get the longer setting one and is a two part mix, I think for memory a black tube and a white tube.

Get cracking mate and all will be fixed.

herbie · Guru

GaryKelly wrote:
Did someone mention toilet seat? Does someone have a crack in the toilet seat? It ain't me, despite popular opinion. I have a crack in the toilet seat COVER! So I decided a picture is worth a thousand words...

Hi Gary regarding your crack you are talking about,..well I have looked and looked at the pic you posted and for the life of me I cannot see your crack.......point me in the right direction please to put me out of my misery .Regards Herbie.

Wombat 280 · Guru

You could try cutting down another lid to fit inside the original and use the plumber glue on a spare off cut. some plastic just aren't compatible with plastics and those that are may not be strong enough. If not glued use those large headed rivets from the top and a small washer on the underneath . You can get a toilet lid/seat from Bunnings for $5.00
if it doesn't work then not much lost

Dougwe · Chief one feather

Herbie, you will see the crack just to the left of the blue square next to the words 'Porta Potti'.

The photo is taken with the problem lid partly open.

I hope that's it anyway or I have a crack in my eye.

mr glassies · Guru

quick fix or easy fix cant remember the nome swear by this stuff

dibs

herbie · Guru

Thanks Dough, I thought that line was a hair ..gee I might go see eye Dr ...

GaryKelly · Guru

A mate from Texas wrote this little tip about cracks and how to stop them spreading. It's a great idea so I thought I'd pass it on..

As far as your crack, hahaha, there is a simple fix to keep your crack from growing. Really this does works for both plastic and metal. Take a very small drill bit and drill a hole at the top end of the crack. The round hole stops the crack from spreading. Then if possible spread your crack and insert "Super Glue" Just be careful not to get that glue on you or your own crack, hahaha.

Ontos45 · Guru

Super glue...developed during the Vietnam war as an emergency/temporary repair for wounds...to hold the sides of the wound together until evaced to a surgery unit.

Peter

GaryKelly · Guru

I have a young friend from Massachusetts who has undergone major cancer surgery on his face/neck in which super glue was used to patch the wound. And that's by an expensive specialist in an expensive hospital!

Dougwe · Chief one feather

Super glue is good for a lot of things but I don't think it will stick your crack Garry. I still think Arildite is better for that. IMO.

Duh · Guru

03_troopy wrote:
Duh wrote:
Duh wrote:
Have a look at this product Gary, may fit the bill, see;
http://www.selleys.com.au/adhesives/household-adhesive/quick-fix-adhesive/plastics-glue/

As well as the one above, Selleys have this product, says it is more flexible than superglues, see;
http://www.selleys.com.au/adhesives/household-adhesive/quick-fix-adhesive/selleys-ultra-repair-glue/
This one might be useful too Vic
All PLastics Glue

Same one as the link provided at the top Troopy, worth a try by the sounds of them !

How do you get a link to come up with a name instead of a link, I notice Gary does that too ? confuse

-- Edited by Duh on Thursday 11th of July 2013 09:19:38 PM

Duh · Guru

Have a look at this product Gary, may fit the bill, see;

http://www.selleys.com.au/adhesives/household-adhesive/quick-fix-adhesive/plastics-glue/

03_troopy · Guru

Araldyte doesn't stick to a lot of plastics though Dougwe. The stop drill and superglue method is the best option I think. Superglue will stick to many different types of plastic.

Duh · Guru

Duh wrote:
Have a look at this product Gary, may fit the bill, see;
http://www.selleys.com.au/adhesives/household-adhesive/quick-fix-adhesive/plastics-glue/

As well as the one above, Selleys have this product, says it is more flexible than superglues, see;

http://www.selleys.com.au/adhesives/household-adhesive/quick-fix-adhesive/selleys-ultra-repair-glue/

03_troopy · Guru

Duh wrote:
Duh wrote:
Have a look at this product Gary, may fit the bill, see;
http://www.selleys.com.au/adhesives/household-adhesive/quick-fix-adhesive/plastics-glue/

As well as the one above, Selleys have this product, says it is more flexible than superglues, see;
http://www.selleys.com.au/adhesives/household-adhesive/quick-fix-adhesive/selleys-ultra-repair-glue/

This one might be useful too Vic

All PLastics Glue

Dougwe · Chief one feather

03_troopy wrote:
Araldyte doesn't stick to a lot of plastics though Dougwe. The stop drill and superglue method is the best option I think. Superglue will stick to many different types of plastic.

Wasn't aware of that 03 so thanks, my lesson for the day.

mr glassies · Guru

found it
www.youtube.com/watch

every 1 should have some

dibs