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850 dashboard reinforcement - better than fiberglass?

Jack

Jack

junkman
Joined
Jul 7, 2011
Location
The Ass Cheek Of History
Believe it or not but I actually found a perfect 850 dashboard. Now
I want to reinforce it inside with something that will bond to the plastic better than fiberglass. I reinforced my almost perfect dash (currently installed) about 8 years ago with fiberglass cloth and resin. 3m stuff

While the dash is holding up well, much of the resin has unglued. I even sanded prior to application.

So I?m looking for something that will bond well with the plastics as I know I will never find a dash as nice as this one


Jack
 
I used some 2-part plastic epoxy about 5 years ago under my 850 dash to accomplish various things (like hold down the airbag flap & align the part that likes to separate from the middle vent) It seems to hold up fine. It doesn't get gooey in heat as far as I can tell.
 
IansPlatinum said:
I used some 2-part plastic epoxy about 5 years ago under my 850 dash to accomplish various things (like hold down the airbag flap & align the part that likes to separate from the middle vent) It seems to hold up fine. It doesn't get gooey in heat as far as I can tell.
Click to expand...

thats something along the lines I think I need. I just dont know whats the best products

I'll need quite a bit of it too
 
Check on the bottom side of the dash. Somewhere on there should be a logo that says what the plastic is made of. From what I can remember it was ABS, so something like the epoxy may be a better route. I reinforced several key areas on the R years ago when I had it out, no idea how it's doing now, 8 years or so later and living a few states away.
 
Jack said:
thats something along the lines I think I need. I just dont know whats the best products

I'll need quite a bit of it too
Click to expand...

I used this stuff.

Also used it to rebuild the glovebox frame on the S70 when I had an aerosol can explode the glovebox into a million pieces one summer

51DxJGFLpXL._PIbundle-8,TopRight,0,0_SX236SY500SH20_.jpg
 
gsellstr said:
Check on the bottom side of the dash. Somewhere on there should be a logo that says what the plastic is made of. From what I can remember it was ABS, so something like the epoxy may be a better route. I reinforced several key areas on the R years ago when I had it out, no idea how it's doing now, 8 years or so later and living a few states away.
Click to expand...

my dash that I did years ago is doing fine for the most part. You have to reinfoce everything or the cracks will form in new areas.

my dash
http://volvospeed.com/vs_forum/topic/171818-diy-850-dashboard-repair/page/3/#comments


will be trying this
http://media.wuerth.com/stmedia/shop/masterpages0000/std.lang.all/02512.pdf
 
Are you still planning to reinforce with glass cloth? That Wuerth stuff looks like a good adhesive, but appears to be thick like caulk. The PDF says apply a minimum thickness of 3mm for bonding. I don't think it would saturate cloth.

WEST System G/flex toughened flexible epoxy will wet out glass and can be thickened to fill gaps when bonding.

I am starting to sound like a salesman, but I have no association with the stuff except as a user. I think it is a great company with superior products and customer service.
 
Harry Tuttle said:
Are you still planning to reinforce with glass cloth? That Wuerth stuff looks like a good adhesive, but appears to be thick like caulk. The PDF says apply a minimum thickness of 3mm for bonding. I don't think it would saturate cloth.

WEST System G/flex toughened flexible epoxy will wet out glass and can be thickened to fill gaps when bonding.

I am starting to sound like a salesman, but I have no association with the stuff except as a user. I think it is a great company with superior products and customer service.
Click to expand...

no this is good stuff.
I think I'll use a combo of both
yes Ill will still use the cloth

just ordered 8z kit to see how it goes... fingers crossed
 
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