Author Topic: Question trying to fix Bowsprit on 3750  (Read 4559 times)

Offline DrDalek6

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Re: Question trying to fix Bowsprit on 3750
« Reply #10 on: September 18, 2016, 15:20:51 »
Thanks folks lots of good advice there think I'll go with the Plasticweld Glue or Cement Amazon's got both but, Ebay's got a lot of results for the cement a bit cheaper just to check do most of these look like the right thing? the plastic cement and Poly Cement's  not sure if there's much difference between the brands you would think they'd all do the job about the same. Thanks

   http://www.ebay.co.uk/sch/i.html?_nkw=plastic+cement&LH_ItemCondition=1000&clk_rvr_id=1095613727116&poi=&adpos=1t1&geo_id=32251&MT_ID=11&crlp=81900732970_827&keyword=plastic+cement&rlsatarget=aud-105106656306%3Akwd-779118951&device=c&crdt=0&treatment_id=7&ul_noapp=true

http://www.jbweld.com/products/plasticweld-epoxy-putty


Offline cheng

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Re: Question trying to fix Bowsprit on 3750
« Reply #11 on: September 18, 2016, 17:17:50 »
Pvc glue is plumber's glue.
The main thing is that it can weld abs plastic.
....Regular modelling glue as most of us have found out is useless.

..Abs glue is difficult to come by where I live which is why I mentioned plumbers glue.
It should fix broken legs easily.

agreed, Klickteryx, plastic modelling cement cant hold broken legs or feet...I'll try plumber's glue and report...it would be easiest to find and cheapest i think :)

Offline DrDalek6

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Re: Question trying to fix Bowsprit on 3750
« Reply #12 on: September 18, 2016, 17:30:55 »
What you really need to be using is a plastic cement. Unlike glue, plastic cement melts a layer of the plastic item you are joining causing the two parts to fuse back together. You dab a little bit to both sides of the break, press together and then clamp. Only add enought to cover bothside, you do not want it to push out of the seam when you clamp.

Testors makes a great one N0. 3502 I know that this item cannot be purchased in the UK but in Canada and USA it is found at any hobby store.

Cheers,
James

Don't think I've got a clamp any alternative ways to achieve the same result if you know what I mean or is holding the broken part on and applying pressure for a few minutes till it starts to set sufficient. I've taped things which I'm glueing with masking tap before and I've got plenty of lollysticks which I could stick underneath to support the join while it sets although that would require holding the lollystick or taping it in place while it dries.
       

Offline Klickteryx

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Re: Question trying to fix Bowsprit on 3750
« Reply #13 on: September 18, 2016, 20:23:24 »
Thanks folks lots of good advice there think I'll go with the Plasticweld Glue or Cement Amazon's got both but, Ebay's got a lot of results for the cement a bit cheaper just to check do most of these look like the right thing? the plastic cement and Poly Cement's  not sure if there's much difference between the brands you would think they'd all do the job about the same. Thanks

   http://www.ebay.co.uk/sch/i.html?_nkw=plastic+cement&LH_ItemCondition=1000&clk_rvr_id=1095613727116&poi=&adpos=1t1&geo_id=32251&MT_ID=11&crlp=81900732970_827&keyword=plastic+cement&rlsatarget=aud-105106656306%3Akwd-779118951&device=c&crdt=0&treatment_id=7&ul_noapp=true

http://www.jbweld.com/products/plasticweld-epoxy-putty

Both the labels say they'll glue abs plastic so either should work well.

Offline The_Mad_Hadder

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Re: Question trying to fix Bowsprit on 3750
« Reply #14 on: September 19, 2016, 02:14:02 »
Don't think I've got a clamp any alternative ways to achieve the same result if you know what I mean or is holding the broken part on and applying pressure for a few minutes till it starts to set sufficient. I've taped things which I'm gluing with masking tap before and I've got plenty of lollysticks which I could stick underneath to support the join while it sets although that would require holding the lollystick or taping it in place while it dries.
       

DrDalek6,

You can also use elastic bands, holding the parts together and appling slight pressure is great, but remember you will be using a plastic cement which is a solvent and means the plastic item you are fixing is going to melt a bit and as such has a tendency for parts to slide if not held together while the parts set it also takes time for the plastic to reharden after (like 8 hours) and as much as I love holding playmobil close, I rather not do it for 8 hours.

Given your bow spout, how I would approach it is as follows:

Get three elastic bands (2 of such should be 1/2 inch wide (apox 1.2cm) and 2 inches (5.0cm) long like those found on broccoli bunches at the local grocer), the other one just needs to be 1/4 inch wide (0.6cm) and 3 inch long.



You are going to take the longer and narrower elastic band and cut it in half so that you end up with two equal length parts.



You are then going to tie one end of each elastic length to one of the wider elastic bands.



You will then take the elastic band with the two elastic strips affixed to it and pull it open and slide the bigger piece of the plastic bowspot (that is the part not broken off), if it is not snugh twist ( I am going to use this glass bottle as an example



you want the elastic lengths to be at either side

you are then going to take the second wide elastic band and fit it around the piece that is to be reattached. Then slide the elastic lengths under this band and pull the lengths through until a nice consent pressure is applied and the part no longer moves. It does not have to be tight thought. Once you have done this, pull on the broken bit a bit to allow a small gap between the two parts and apply your plastic cement then slowly bring the two pieces back together.

To show you how well this works, I put a full thing of glue inside the jar and affixed the lid upside down so had to use this method to keep the lid closed.





Best part is you can do this for any odd length and it does not leave marks or residue on your toys. If you get a good join you will not even notice it was broken in the first place.

I hope this helps

Cheers,
James
« Last Edit: September 19, 2016, 02:24:02 by The_Mad_Hadder »
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Offline The_Mad_Hadder

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Re: Question trying to fix Bowsprit on 3750
« Reply #15 on: September 19, 2016, 02:21:13 »
Thanks folks lots of good advice there think I'll go with the Plasticweld Glue or Cement Amazon's got both but, Ebay's got a lot of results for the cement a bit cheaper just to check do most of these look like the right thing? the plastic cement and Poly Cement's  not sure if there's much difference between the brands you would think they'd all do the job about the same. Thanks

   http://www.ebay.co.uk/sch/i.html?_nkw=plastic+cement&LH_ItemCondition=1000&clk_rvr_id=1095613727116&poi=&adpos=1t1&geo_id=32251&MT_ID=11&crlp=81900732970_827&keyword=plastic+cement&rlsatarget=aud-105106656306%3Akwd-779118951&device=c&crdt=0&treatment_id=7&ul_noapp=true

http://www.jbweld.com/products/plasticweld-epoxy-putty

TAMIYA is fine to use as well, just you want to use the liquid type NOT the gel and also avoid anything that states it is quick setting/ quick set. You want to use one that gives you some play time to make sure the pieces line up properly and that there are no gaps. Lastly let the parts cure together over night. Do not rush the process, as you mentioned that you already applied other glues you have to remove that stuff first for this to give you are great bond.
« Last Edit: September 19, 2016, 02:26:31 by The_Mad_Hadder »
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Offline DrDalek6

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Re: Question trying to fix Bowsprit on 3750
« Reply #16 on: September 19, 2016, 07:09:57 »
DrDalek6,

You can also use elastic bands, holding the parts together and appling slight pressure is great, but remember you will be using a plastic cement which is a solvent and means the plastic item you are fixing is going to melt a bit and as such has a tendency for parts to slide if not held together while the parts set it also takes time for the plastic to reharden after (like 8 hours) and as much as I love holding playmobil close, I rather not do it for 8 hours.

Given your bow spout, how I would approach it is as follows:

Get three elastic bands (2 of such should be 1/2 inch wide (apox 1.2cm) and 2 inches (5.0cm) long like those found on broccoli bunches at the local grocer), the other one just needs to be 1/4 inch wide (0.6cm) and 3 inch long.



You are going to take the longer and narrower elastic band and cut it in half so that you end up with two equal length parts.



You are then going to tie one end of each elastic length to one of the wider elastic bands.



You will then take the elastic band with the two elastic strips affixed to it and pull it open and slide the bigger piece of the plastic bowspot (that is the part not broken off), if it is not snugh twist ( I am going to use this glass bottle as an example



you want the elastic lengths to be at either side

you are then going to take the second wide elastic band and fit it around the piece that is to be reattached. Then slide the elastic lengths under this band and pull the lengths through until a nice consent pressure is applied and the part no longer moves. It does not have to be tight thought. Once you have done this, pull on the broken bit a bit to allow a small gap between the two parts and apply your plastic cement then slowly bring the two pieces back together.

To show you how well this works, I put a full thing of glue inside the jar and affixed the lid upside down so had to use this method to keep the lid closed.





Best part is you can do this for any odd length and it does not leave marks or residue on your toys. If you get a good join you will not even notice it was broken in the first place.

I hope this helps

Cheers,
James

Thanks I'll have a go at that probably this weekend

TAMIYA is fine to use as well, just you want to use the liquid type NOT the gel and also avoid anything that states it is quick setting/ quick set. You want to use one that gives you some play time to make sure the pieces line up properly and that there are no gaps. Lastly let the parts cure together over night. Do not rush the process, as you mentioned that you already applied other glues you have to remove that stuff first for this to give you are great bond.

Thanks good to know, I thought i probably would have to remove the old glue

 :)9

Offline cheng

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Re: Question trying to fix Bowsprit on 3750
« Reply #17 on: September 19, 2016, 09:49:44 »
TAMIYA is fine to use as well, just you want to use the liquid type NOT the gel and also avoid anything that states it is quick setting/ quick set. ....

but make sure the TAMIYA liquid cement is specially "for ABS plastic"