Keep re applying on the rubber and rubbing with a cloth.
Clean sticky rubber grip.
This is why they were sticky.
Swish the water with your hands to thoroughly mix the soap.
Like 50 year old tyres using alchohol will merely disolve and strip the top liquid rubber layer off back to the still rigid rubber underlayer.
Rub the paste over the surface with a cloth then rinse clean.
I pulled out the camera several times over the last year and every time my hand stuck to the grips.
More rigid high vulcaising rubber will powderise back to dust.
Fill the sink or a cleaning bucket with about 1 gallon of water and 1 tbsp.
Rinse wash cloth then wipe remote repeat should be free of any sticky.
Quick video on how to clean old plastic or rubber that s deteriorated and has become sticky and or oily.
Tried dish detergent but that just pushed the sticky around.
Once the isopropyl starts to dry and you find that the cloth is sticking to the rubber it s time to add another layer of isopropyl.
Murphy s oil soap and done.
The top surface is effected 1st which then deepens and deepens until you could wipe the entire rubber off with cloth after 25 years.
Dampen a wash cloth with hot water and wring out excess water dampen wash cloth with oil soap full strength and clean remote or sticky plastic.
If the sticky damaged surface remains mix some baking soda with water to create a thick paste that is about the consistency of toothpaste.
Rubbing alcohol can be used as well but should be used with caution as it can cause damage to some rubber surfaces.
Again use fresh clean rags for each application allowing to dry rinsing with water between each application.
The grips on the camera had become sticky.
Use a clean section of the cloth each time.
After the final step gbg application you should wrap in damp towels leave overnight and make sure the gbg is completely removed.