July 22, 2008 at 6:35 am #1095Gerry O’HaraKeymaster
During my recent HRO restoration project I found that I needed to fill several holes in the front panel, cabinet and chassis that were no longer needed. I did this by covering the face side with masking tape and filling behind with JB-Weld. This product (a type of epoxy) hardens nicely, filling the hole and, when the masking tape is removed, leaving a completely flawless surface ready for painting. I also repaired the plastic S-meter case with JB-Weld and it also works for small repairs to Bakelite cabinets. JB-Weld is medium-grey in colour and opaque, and is easily sanded or filed to shape once set. It can also be coloured easily with a marker pen (see the S-meter photos). JB-Weld is available from many hardware outlets in Canada.
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Download DSC00177 [1024×768].JPG. (Caution: This file may not be virus scanned.)July 16, 2009 at 12:27 am #1411
Just an FYI to this topic in regard to repairing or glueing bakelite. I have found a good way to glue this type of plastic.
I have found that using gap a zap super glue and setting it with baking soda works very well. The problem is you only get one chance to glue. The baking soda sets the glue fast so do it in a well vented area. Also no filling is usally needed and sanding a crack very smooth for painting.July 16, 2009 at 1:45 am #1412Gerry O’HaraKeymaster
Sounds interesting – do you use regular superglue and mix it with baking soda before applying to the surfaces to be joined? What advantage does adding the baking soda have?
GerryJuly 17, 2009 at 3:54 pm #1413
As far as mixing none is done it will bond instantly if you do. I find the best way is glue on both sides and then hit it with baking soda while holding together. I try to make sure the glue comes out a bit so I have something to sand.
Give it a try i have a crosley 25 I got from ebay all smashed up that I fixed this way.July 17, 2009 at 3:58 pm #1414
Sorry forgot to say I use a glue called Gap A Zap name brand I get here in Canada from the hobby shop. It is thicker then nomal super glue. I belive baking soda works with all super glues though.July 17, 2009 at 8:30 pm #1415
Forgot to add why this works on bakelite. My understanding is bakelite is made under high heat and high preasure to get it to form. The problem with super glue is it does not set fast enough and you must have presure on the object to set it .
I understand the baking soda act like a catalist to set the glue quick. So it bonds bakelite plastic very well. I find that good fresh super glue and new baking soda work well. Also a good clean surface on the backlite.
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