Searching for silicone type sealant/glue reddish/orange color  - Page 1
Forum section: electronics / beginners

author: vjekobalas
author_rank: Regular Contributor
timestamp: November 09, 2021, 02:16:59 pm
content: I need to put back together a plastic two piece "head" (looks like a shower head)from a General Project Med Contour beauty salon machine. The plastic head is held together with twosmall plastic screws which makes me think they are there only for initial holdingforce while the "silicone"cures. The "head" has inbuiltultrasound transducers which get hot to a certain degree and oil is used as a lubefor gliding over the skin.The "silicone" I am searching for is reddish/orange in color, has glue/sealingproperties and allows for the pieces on which it is used to be disassembledwithout great difficulty and looks like a fine silicone membrane.I initially contacted Loctite and they suggested Loctite 5927(red )or Loctite 5910 which is even better as it is oil resistantBUT both are quite difficult to remove (what Loctite person said)so, I presume it is not a Loctite product.Does anyone maybe know what product this could be ?

author: vjekobalas
author_rank: Regular Contributor
timestamp: November 14, 2021, 03:53:34 pm
content: I've got the head back on my desk - it turns out the silicone type substance isa brownish/red color (photo attached). The substance seems to have beenapplied to one half of the plastic head. On the attached photo I have pointersto the metal inlet where oil is sucked in and the plastic counter-partand the silicone material is only on the plastic and is not visible on anypart of the head where the metal inlet is installed.Anyone any clues what this silicone substance could be - would be appreciated.

author: cortex_m0
author_rank: Regular Contributor
timestamp: November 14, 2021, 04:39:10 pm
content: AdaSeal has a red "high temperature" RTV, part number 10307. I'm not familiar with their specific red color.

author: andy3055
author_rank: Super Contributor
timestamp: November 14, 2021, 05:14:23 pm
content: Looks like what people use for engine gaskets. Try an auto parts site.

author: Jwillis
author_rank: Super Contributor
timestamp: November 14, 2021, 06:22:30 pm
content: I'm not sure what you may have available to you . I used this to repair a solder iron where other adhesives and epoxies would just melt .Permatex®

author: bdunham7
author_rank: Super Contributor
timestamp: November 14, 2021, 06:28:32 pm
content: Quote from: vjekobalas on November 09, 2021, 02:16:59 pmHow difficult it is to remove depends on what the surfaces are. On some, products like 5910 just peel off easily, others they adhere to quite aggressively. If the mating surfaces are any type of plastic, the chances of it being the former are much greater.

author: BrokenYugo
author_rank: Super Contributor
timestamp: November 14, 2021, 07:21:05 pm
content: I was under the impression you want a "neutral cure" (no acetic acid smell) silicone for electronics use. Takes some digging but something suitable can usually be found at the hardware store.

author: vjekobalas
author_rank: Regular Contributor
timestamp: November 15, 2021, 05:56:11 pm
content: Thanks for all the input !