Flexible rubber lens hood - repair options

Kevin Caulfield · Mar 4, 2019

Hi all. My question actually relates to a lens hood on an old Canon 814 XL super 8 camera, but similar issues must appear on other film cameras. Basically the super 8 has a flexible rubber lens hood which has torn apart at the flexing joint, leaving the inner part of the hood intact.

My question is, does there exist any kind of adhesive which will adhere the broken end ring back to the remaining ring. Obviously the adhesive in question would need to be able to withstand continuous flexing.

It's not a big deal if there are no repair options, but I just thought I would put this question out there in the hope that something will work.

Any and all suggestions will be greatly appreciated. Thanks.

Kodachromeguy · Mar 4, 2019

Maybe, maybe, if you are really lucky and you have a bit of surface area: you need rubber cement of the type that you use on bicycle inner tubes. But bicycle repairs are easier in that the patch is lying flat against the tube, and they flex together. Try the cement and then make a few stitches with thread to add some tensile strength.

shutterfinger · Mar 4, 2019

Clean with 90% Isoproply Alcohol the try https://www.ebay.com/itm/Adhesive-P...50AAOSwPcVV27Wj:sc:USPSFirstClass!94080!US!-1 or https://www.ebay.com/itm/Adhesive-P...NwAAOSw~gRV27Mg:sc:USPSFirstClass!94080!US!-1 .

AgX · Mar 5, 2019

Rubber can be glued as well with epoxy- as with cyanacrylate-glue. Typically in industry the latter is used (as in making a O-ring from a strand). There even are cyanacrylates that remain flexible. Which kind to use depends on the very job.

However, the tearing off of rubber shades is a typical fault of ageing samples.

AgX · Mar 5, 2019

Kodachromeguy said:
Maybe, maybe, if you are really lucky and you have a bit of surface area: you need rubber cement of the type that you use on bicycle inner tubes. But bicycle repairs are easier in that the patch is lying flat against the tube, and they flex together. Try the cement and then make a few stitches with thread to add some tensile strength.

Rubber cement is good for area-cementing of rubber, not for spot-joints to be stressed, even flexed.

Poisson Du Jour · Mar 5, 2019

Try neoprene adhesive used to repair wetsuits. Can be found at Rip Curl down in Torquay, Billabong or Quicksilver.

AgX · Mar 5, 2019

Neoprene adhesive is just rubber cement.

Poisson Du Jour · Mar 5, 2019

AgX said:
Neoprene adhesive is just rubber cement.

Not for wetsuits it's not.

AgX · Mar 5, 2019

Rubber cement/contact cement consists of dissolved neoprene. Obviously you mean another type of cement.

darkroommike · Mar 5, 2019

Looks like the hood just screws out why no just get a different hood? Old rubber products either get sticky or crunchy.

Kevin Caulfield · Mar 6, 2019

Thanks for all the replies so far. I'm guessing that nothing is going to withstand the continuous flexing which would be required. I checked to see if it screws off and managed to partly crack the remaining inner part of hood in doing so, which shows it's become fairly brittle with age. The hood is probably not really necessary anyway. But I do appreciate your replies and will keep watching. Thanks again.

Flexible rubber lens hood - repair options

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