Was there a speacial sealant used for the top of the windshield frame - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BobbyK · 12-01-2002, 01:49 AM

On my 71 Blazer,the top sits on the top of the winshield frame.There is a drip rail at the top of the windshield frame.I know there was a semi-hard sealant that was applied in that area from the factory.
Anyone know what is was?
Will any seam sealer do.
I'm doing the paint and body and have removed all the old sealant from this area.
Here's a pic to give you an idea what I'm talking about.

Terry'sToy · 12-01-2002, 12:08 PM

I was wondering the same thing as I'm fixing by buddys truck while he's gone and the sealant is pretty much gone on the top of the cab. It's not a blazer but I'm sure that stuff is probably the same for all makes.

the binder · 12-01-2002, 12:54 PM

hey bobby
i dont have that problem on my blazer but make sure the sealant
gets semi hard to stand up to the hard top contact/rubbing
i am also interested in your 700r4 set up ie: drive shaft,speedo cable,coolant lines,column shift linkage,tv cable,ect.
thanks Tim.

guitarman · 12-01-2002, 01:30 PM

Check with a 3M dealer and get them to research it with 3M they have a tech line available to all dealers.

hobby67stepside · 12-01-2002, 05:07 PM

I use a 3M product called Fast n' Firm.

BobbyK · 12-01-2002, 05:57 PM

Hey hobby67stepside how did 3M's "Fast-N-Firm set up?
I'm looking for somthing that's set's up kinda hard but has a little give to it.

Thanks for the replies guys.
BINDER,you can e-mail me with question about my 700R4 intall at
blazbk@excite.com

hobby67stepside · 12-04-2002, 12:40 AM

Bobby. the Fast and Firm sets up but still has some flexibility. I think its as close to original as you will get.

12-01-2002, 01:49 AM	#1
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,772	Was there a speacial sealant used for the top of the windshield frame On my 71 Blazer,the top sits on the top of the winshield frame.There is a drip rail at the top of the windshield frame.I know there was a semi-hard sealant that was applied in that area from the factory. Anyone know what is was? Will any seam sealer do. I'm doing the paint and body and have removed all the old sealant from this area. Here's a pic to give you an idea what I'm talking about. __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE Last edited by BobbyK; 12-01-2002 at 01:53 AM.

12-01-2002, 12:08 PM	#2
Terry'sToy Registered User Join Date: Oct 2002 Location: Victoria B.C Posts: 109	I was wondering the same thing as I'm fixing by buddys truck while he's gone and the sealant is pretty much gone on the top of the cab. It's not a blazer but I'm sure that stuff is probably the same for all makes. __________________ 69 GMC 1/2 ton lwb, LS1, headers X-pipe 4L60E Yank 3500 stall 3.73 w/eaton brute force. moroso trick front springs,jeep rear springs, QA1's

12-01-2002, 01:30 PM	#4
guitarman Do it well or don't do it Join Date: Apr 2002 Location: Georgia Posts: 457	Check with a 3M dealer and get them to research it with 3M they have a tech line available to all dealers. __________________ Try to be the person your dog thinks you are. Excellent paint and body site: http://www.autobody101.com/ Visit my Web Site http://home.attbi.com/~agfosteriii

12-01-2002, 05:07 PM	#5
hobby67stepside Registered User Join Date: Dec 2001 Location: NW Iowa Posts: 952	I use a 3M product called Fast n' Firm. __________________ '05 2500 HD Silverado 6.0 liter '97 2500 4X4 454 eng '92 2500 4X4 350 eng '78 K20 4X4 400 eng '70 Boss 302 (owner for 27 years) '57 Ford shortbox 383 stroker TH350 tranny '23 T-bucket (built in '78) '02 Explorer '67 C-10 short step NW Iowa

12-01-2002, 05:57 PM	#6
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,772	Hey hobby67stepside how did 3M's "Fast-N-Firm set up? I'm looking for somthing that's set's up kinda hard but has a little give to it. Thanks for the replies guys. BINDER,you can e-mail me with question about my 700R4 intall at blazbk@excite.com __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE

12-01-2002, 12:54 PM	#3
the binder Registered User Join Date: Nov 2002 Location: monrovia,ca Posts: 14	hey bobby i dont have that problem on my blazer but make sure the sealant gets semi hard to stand up to the hard top contact/rubbing i am also interested in your 700r4 set up ie: drive shaft,speedo cable,coolant lines,column shift linkage,tv cable,ect. thanks Tim.

12-04-2002, 12:40 AM	#7
hobby67stepside Registered User Join Date: Dec 2001 Location: NW Iowa Posts: 952	Bobby. the Fast and Firm sets up but still has some flexibility. I think its as close to original as you will get. __________________ '05 2500 HD Silverado 6.0 liter '97 2500 4X4 454 eng '92 2500 4X4 350 eng '78 K20 4X4 400 eng '70 Boss 302 (owner for 27 years) '57 Ford shortbox 383 stroker TH350 tranny '23 T-bucket (built in '78) '02 Explorer '67 C-10 short step NW Iowa

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