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Wood-to-plastic adhesive that holds up in high heat?

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Forum topic by thelegendofpete posted 07-23-2016 02:12 PM 561 views 0 times favorited 7 replies Add to Favorites Watch
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thelegendofpete

3 posts in 456 days


07-23-2016 02:12 PM

Topic tags/keywords: woodturning lathe adhesive epoxy car automotive

Hi all-

I recently finished turning a new shift knob for my car. In addition to the knob part, I epoxied (JB Clear Weld) a decorate plastic silver piece to the base of the wood.

Within a week of parking outside at work in the southern California heat, the epoxy has dried up the two pieces fell right apart.

My question is: what would be a better choice of adhesive that could hold up to that kind of temperature?

Photo below for reference:

Thanks in advance!


7 replies so far

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waho6o9

7981 posts in 2360 days


#1 posted 07-23-2016 02:14 PM

View JAAune's profile

JAAune

1761 posts in 2099 days


#2 posted 07-24-2016 03:35 AM

Get a good epoxy, not 5-minute stuff like that clear JB weld. Call the people at System 3 or West System and ask them for the appropriate product for the application. Slow-setting epoxies are much stronger and more durable.

I’ve used West System to remount a rear view mirror and it never fell off.

-- See my work at http://remmertstudios.com and http://altaredesign.com

View BurlyBob's profile

BurlyBob

4859 posts in 2048 days


#3 posted 07-24-2016 03:41 AM

Pete, I pretty sure I remember that emblem as a button on my Dad’s USAF A blouse. Brings back good memories, Thanks.

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Ger21

1074 posts in 2914 days


#4 posted 07-24-2016 01:19 PM

Try silicone. Plastic expands and contracts a lot with changes in heat, so you need a flexible adhesive.
And epoxies (and most other adhesives) don’t stick very well to plastics.

-- Gerry, http://www.thecncwoodworker.com/index.html http://www.jointcam.com

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woodbutcherbynight

3475 posts in 2192 days


#5 posted 07-25-2016 02:29 AM



Try silicone. Plastic expands and contracts a lot with changes in heat, so you need a flexible adhesive.
And epoxies (and most other adhesives) don t stick very well to plastics.

- Ger21

Clear silicone and let it cure for a week. Prob never come off with the heat.

-- Live to tell the stories, they sound better that way.

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thelegendofpete

3 posts in 456 days


#6 posted 07-26-2016 04:04 AM

Thanks for the feedback everyone! I actually recently picked up some silicone adhesive so I’ll do some tests with that first.

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thelegendofpete

3 posts in 456 days


#7 posted 07-26-2016 04:08 AM



Pete, I pretty sure I remember that emblem as a button on my Dad s USAF A blouse. Brings back good memories, Thanks.

- BurlyBob

It is indeed a uniform button I got in an estate sale. I knew it was WWII but I always wondered from what uniform, so thanks much for the info, really cool! What did he do in the Air Force?

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