Plastic Repairs using a Soldering Iron (1 Viewer)

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Feb 15, 2016
651
1,102
Essex
Funster No
41,677
MH
Coachbuilt
Exp
Since April 2016
It may not be the neatest repair but the strength is amazing.
 
OP
OP
Revolvor
Oct 8, 2014
1,689
3,231
Wiltshire
Funster No
33,737
MH
Autotrail Excel 600B
Exp
Previous VW Camper + Caravan
I suspect that a repair could be sanded down and any blemishes filled.
 
Oct 29, 2021
1,047
6,785
Chesterfield, UK
Funster No
85,143
MH
autocruise Rhythm
Exp
Most of my life in one form or another
Done very similar repairs in the past , various motorbike panels , Andreas Audi bumper and inner wing.
Currently replacing radiator on the Boxer and noticed the inner wheel arch liner is cracked and in 2 parts, that will be welded later today.
 
Feb 27, 2011
15,037
79,036
UK
Funster No
15,452
MH
Self Build
Exp
Since 2005
The bit where he was cutting the staples with side cutters was wrong. They have score at the bottom and they just twist off.
Also he put the staples in the wrong orientation. They cross the crack in the plastic once each. If he rotated them 90° They cross backwards and forward over the crack 4 times and give a much stronger joint.
 
Feb 27, 2011
15,037
79,036
UK
Funster No
15,452
MH
Self Build
Exp
Since 2005
Like this;

1715148637886.png


Not like he did like this;

1715149257742.png
 
Last edited:
Oct 27, 2019
297
2,821
Fareham
Funster No
66,290
MH
C class
Exp
Since 2017
I have done a lot of plastic welding using a small flame torch and plastic welding clips. Filling in and small holes with melted zip ties.
Works a treat and stronger then the plastic surrounding the repair.

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Feb 27, 2011
15,037
79,036
UK
Funster No
15,452
MH
Self Build
Exp
Since 2005
Can't wait to get into my plastic welding. Got my custom CNC parts arriving later today.
Sheets of 2m x 1M arrived yesterday.

1715164399802.png


Got the welding rod Big reel 2KG each of black and white.

1715164462038.png


Got some White thick stuff for making jigs.
1715164536769.png

And some new toys to play with.

1715164574630.png


Lots more going on, but will do a proper thread on it when I get started, hopefully tomorrow.
 
Apr 19, 2022
215
379
Funster No
88,188
MH
Autotrail
First trip out in a new van. Driving from Boscastle on the narrowest of roads when the local bus came in the other direction. I’d just passed a field entrance so tried to reverse over as far as possible and ‘crack’ pile of stones hidden in what looked like long grass. Two cracks on rear panel. Mobile Motorhome / caravan repair man came and plastic welded them. Rub down, bit of filler and a spray of paint and you’d never know. I was amazed that he’d used what looked like a soldering iron!
 
Apr 19, 2022
215
379
Funster No
88,188
MH
Autotrail
First trip out in a new van. Driving from Boscastle on the narrowest of roads when the local bus came in the other direction. I’d just passed a field entrance so tried to reverse over as far as possible and ‘crack’ pile of stones hidden in what looked like long grass. Two cracks on rear panel. Mobile Motorhome / caravan repair man came and plastic welded them. Rub down, bit of filler and a spray of paint and you’d never know. I was amazed that he’d used what looked like a soldering iron!
 
Apr 12, 2020
1,038
1,057
South Lincs....
Funster No
69,935
MH
Rapido 7095DF
Exp
20+ years. Previously Hymer B654 and Hymer S660 both c/w tow-bars.
Mar 26, 2021
108
99
Worcestershire, UK
Funster No
80,001
MH
Burstner A645 Active
Apr 12, 2020
1,038
1,057
South Lincs....
Funster No
69,935
MH
Rapido 7095DF
Exp
20+ years. Previously Hymer B654 and Hymer S660 both c/w tow-bars.
I would add, if using a plastic filler rod, it needs to be the same type of plastic, they are not all the same!
Following on, I’ve just refurb’ed a trailer that had 2x cracked 13” mudguards.
Quite pricey to replace so plastic welded them from underneath. Took em off first and did them on the bench!

Missus had no steel wool so I substituted stranded copper wire with the insulation stripped back. It’s worked a treat! Virtually no signs of cracking…. 👍



IMG_6560.jpeg
 
OP
OP
Revolvor
Oct 8, 2014
1,689
3,231
Wiltshire
Funster No
33,737
MH
Autotrail Excel 600B
Exp
Previous VW Camper + Caravan
Following on, I’ve just refurb’ed a trailer that had 2x cracked 13” mudguards.
Quite pricey to replace so plastic welded them from underneath. Took em off first and did them on the bench!

Missus had no steel wool so I substituted stranded copper wire with the insulation stripped back. It’s worked a treat! Virtually no signs of cracking…. 👍



View attachment 913607
Looks good!
 
Aug 19, 2013
3,074
4,486
Wells, Somerset
Funster No
27,611
MH
Elddis 115
Exp
since 2004
I would add, if using a plastic filler rod, it needs to be the same type of plastic, they are not all the same!
How do you know what type of plastic it is? How can one find out, is there a simple test, like set fire to it?

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